changeset 49:245150080c48 1.20 1.20.3

Converted 1.20 into a branch
author Oleg Oshmyan <chortos@inbox.lv>
date Sun, 19 Dec 2010 23:23:24 +0200
parents 06f1683c8db9
children 36b18ff330bb
files 1.20/test.py 2.00/compat.py 2.00/config.py 2.00/files.py 2.00/problem.py 2.00/publish.sh 2.00/testcases.py 2.00/upreckon-vcs 2.00/upreckon.sublime-project 2.00/zipfile.py 2.00/zipfile26.py 2.00/zipfile266.diff 2.00/zipfile27.py 2.00/zipfile271.diff 2.00/zipfile31.py 2.00/zipfile313.diff publish.sh test-vcs.py test.py zipfile.py zipfile26.py zipfile266.diff zipfile27.py zipfile271.diff zipfile31.py zipfile313.diff
diffstat 26 files changed, 5665 insertions(+), 8223 deletions(-) [+]
line wrap: on
line diff
--- a/1.20/test.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,899 +0,0 @@
-#! /usr/bin/python
-# Copyright (c) 2009, 2010 Chortos-2 <chortos@inbox.lv>
-
-import os, sys, shutil, time, subprocess, filecmp, optparse, signal, tempfile, tarfile, zipfile
-
-parser = optparse.OptionParser(version='test.py 1.20.3', usage='usage: %prog [options] [problem names] [[path/to/]solution-app] [test case numbers]\n\nTest case numbers can be specified in plain text or as a Python expression\nif there is only one positional argument.\n\nOnly problem names listed in testconf.py are recognized.')
-parser.add_option('-e', '--exclude', dest='exclude', action='append', help='test case number(s) to exclude, as a Python expression; multiple -e options can be supplied')
-parser.add_option('-c', '--cleanup', dest='clean', action='store_true', default=False, help='delete the copies of input/output files and exit')
-parser.add_option('-s', '--save-io', dest='erase', action='store_false', default=True, help='do not delete the copies of input/output files after the last test case; create copies of input files and store output in files even if the solution uses standard I/O; delete the stored input/output files if the solution uses standard I/O and the -c/--cleanup option is specified')
-parser.add_option('-m', '--copy-io', dest='copyonly', action='store_true', default=False, help='only create a copy of the input/output files of the last test case for manual testing; to delete them, use options -cs')
-parser.add_option('-x', '--auto-exit', dest='pause', action='store_false', default=True, help='do not wait for a key to be pressed when finished testing')
-parser.add_option('-p', '--python', action='store_true', default=False, help='always parse all positional arguments as a single Python expression (including the first argument even if it names an executable file)')
-parser.add_option('-t', '--detect-time', dest='autotime', action='store_true', default=False, help='spend a second detecting the most precise time measurement function')
-
-options, args = parser.parse_args()
-parser.destroy()
-del parser
-
-globals1 = set(globals())
-
-# Initialize some configuration variables with default values
-tasknames = ('.',)
-maxtime = 0
-tests = ()
-dummies = ()
-testsexcluded = ()
-padwithzeroestolength = 0
-taskweight = 100
-pointmap = {}
-stdio = False
-dummyinname = ''
-dummyoutname = ''
-tester = ''
-
-def exectestconf_helper(name):
-	if os.path.isfile('tests.tar'):
-		f = tarfile.open('tests.tar')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.zip'):
-		f = zipfile.ZipFile('tests.zip')
-		try:
-			exec f.open(name, 'rU').read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tgz'):
-		f = tarfile.open('tests.tgz')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.gz'):
-		f = tarfile.open('tests.tar.gz')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tbz2'):
-		f = tarfile.open('tests.tbz2')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.bz2'):
-		f = tarfile.open('tests.tar.bz2')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	return False
-
-try:
-	execfile('testconf.py')
-except IOError, error:
-	exc_info = sys.exc_info()[2]
-	try:
-		execfile('tests/testconf.py')
-	except IOError:
-		if not exectestconf_helper('testconf.py'):
-			raise IOError, (error.errno, 'The configuration file is missing', error.filename), exc_info
-	del exc_info
-
-globals2 = set(globals())
-globals2.remove('globals1')
-globals2 -= globals1
-del globals1
-
-shared = {}
-g = globals()
-for k in globals2:
-	shared[k] = g[k]
-
-newtasknames = []
-while len(args) and args[0] in tasknames:
-	newtasknames.append(args[0])
-	del args[0]
-if len(newtasknames):
-	tasknames = newtasknames
-
-scoresumoveralltasks = 0
-scoremaxoveralltasks = 0
-ntasks = 0
-nfulltasks = 0
-cwd = '' # At any time this is either '' or taskname + '/'
-
-if options.autotime:
-	c = time.clock()
-	time.sleep(1)
-	c = time.clock() - c
-	if int(c + .99999) == 1:
-		clock = time.clock
-	else:
-		clock = time.time
-elif os.name == 'nt':
-	clock = time.clock
-else:
-	clock = time.time
-
-if options.copyonly:
-	options.erase = False
-
-def existstestcase_helper(name):
-	if os.path.isfile('tests.tar'):
-		f = tarfile.open('tests.tar')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.zip'):
-		f = zipfile.ZipFile('tests.zip')
-		try:
-			f.getinfo(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tgz'):
-		f = tarfile.open('tests.tgz')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.gz'):
-		f = tarfile.open('tests.tar.gz')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tbz2'):
-		f = tarfile.open('tests.tbz2')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.bz2'):
-		f = tarfile.open('tests.tar.bz2')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	return False
-
-def existstestcase(name):
-	if os.path.isfile('tests/' + taskname + '/' + name) or os.path.isfile('tests/' + name):
-		return True
-	if cwd and (os.path.isfile(oldcwd + '/tests/' + cwd + name) or os.path.isfile(oldcwd + '/tests/' + name)):
-		return True
-	if existstestcase_helper(taskname + '/' + name) or existstestcase_helper(name):
-		return True
-	if cwd:
-		os.chdir(oldcwd)
-		if existstestcase_helper(cwd + name) or existstestcase_helper(name):
-			os.chdir(cwd)
-			return True
-		os.chdir(cwd)
-	return False
-
-def opentestcase_helper(name):
-	if os.path.isfile('tests.tar'):
-		f = tarfile.open('tests.tar')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.zip'):
-		f = zipfile.ZipFile('tests.zip')
-		try:
-			c = f.open(name, 'rU')
-			f.close()
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tgz'):
-		f = tarfile.open('tests.tgz')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.gz'):
-		f = tarfile.open('tests.tar.gz')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tbz2'):
-		f = tarfile.open('tests.tbz2')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.bz2'):
-		f = tarfile.open('tests.tar.bz2')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	return None
-
-def opentestcase(name):
-	if os.path.isfile('tests/' + taskname + '/' + name):
-		return open('tests/' + taskname + '/' + name, 'rU')
-	elif os.path.isfile('tests/' + name):
-		return open('tests/' + name, 'rU')
-	f = opentestcase_helper(taskname + '/' + name)
-	if not f:
-		f = opentestcase_helper(name)
-	if f:
-		return f
-	if cwd:
-		if os.path.isfile(oldcwd + '/tests/' + cwd + name):
-			return open(oldcwd + '/tests/' + cwd + name, 'rU')
-		elif os.path.isfile(oldcwd + '/tests/' + name):
-			return open(oldcwd + '/tests/' + name, 'rU')
-		os.chdir(oldcwd)
-		f = opentestcase_helper(cwd + name)
-		if not f:
-			f = opentestcase_helper(name)
-		os.chdir(cwd)
-		if f:
-			return f
-	raise KeyError, 'The test-case-defining file \'' + name + '\' cannot be found'
-
-def copytestcase_helper(name, target):
-	if os.path.isfile('tests.tar'):
-		f = tarfile.open('tests.tar')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.zip'):
-		if not target.startswith('/'):
-			f = zipfile.ZipFile('tests.zip')
-			try:
-				m = f.getinfo(name)
-				m.filename = target
-				f.extract(m)
-				f.close()
-				return True
-			except KeyError:
-				f.close()
-		else:
-			oldcwd = os.getcwdu()
-			os.chdir('/')
-			f = zipfile.ZipFile(oldcwd + '/tests.zip')
-			try:
-				m = f.getinfo(name)
-				m.filename = os.path.relpath(target)
-				f.extract(m)
-				f.close()
-				os.chdir(oldcwd)
-				return True
-			except KeyError:
-				f.close()
-				os.chdir(oldcwd)
-	if os.path.isfile('tests.tgz'):
-		f = tarfile.open('tests.tgz')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.gz'):
-		f = tarfile.open('tests.tar.gz')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tbz2'):
-		f = tarfile.open('tests.tbz2')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.bz2'):
-		f = tarfile.open('tests.tar.bz2')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	return False
-
-def copytestcase(name, target):
-	if os.path.isfile('tests/' + taskname + '/' + name):
-		shutil.copyfile('tests/' + taskname + '/' + name, target)
-		return
-	elif os.path.isfile('tests/' + name):
-		shutil.copyfile('tests/' + name, target)
-		return
-	if copytestcase_helper(taskname + '/' + name, target) or copytestcase_helper(name, target):
-		return
-	if cwd:
-		if os.path.isfile(oldcwd + '/tests/' + cwd + name):
-			shutil.copyfile(oldcwd + '/tests/' + cwd + name, target)
-			return
-		elif os.path.isfile(oldcwd + '/tests/' + name):
-			shutil.copyfile(oldcwd + '/tests/' + name, target)
-			return
-		os.chdir(oldcwd)
-		if copytestcase_helper(cwd + name, target) or copytestcase_helper(name, target):
-			os.chdir(cwd)
-			return
-		os.chdir(cwd)
-	raise KeyError, 'The test-case-defining file \'' + name + '\' cannot be found'
-
-# Always chdir if the directory exists but use any existing config
-def chdir_and_exec_testconf():
-	global cwd
-	cwd = ''
-	if os.path.isdir(taskname):
-		os.chdir(taskname)
-		if taskname != '.':
-			cwd = taskname + '/'
-		try:
-			execfile('testconf.py', globals())
-			return
-		except IOError:
-			pass
-	if not cwd:
-		if os.path.isfile('tests/' + taskname + '/testconf.py'):
-			execfile('tests/' + taskname + '/testconf.py', globals())
-			return
-		if os.path.isfile('tests/testconf.py'):
-			execfile('tests/testconf.py', globals())
-			return
-	if exectestconf_helper(taskname + '/testconf.py') or exectestconf_helper('testconf.py'):
-		return
-	if cwd:
-		os.chdir(oldcwd)
-		if os.path.isfile('tests/' + cwd + 'testconf.py'):
-			execfile('tests/' + cwd + 'testconf.py', globals())
-			os.chdir(cwd)
-			return
-		if os.path.isfile('tests/testconf.py'):
-			execfile('tests/testconf.py', globals())
-			os.chdir(cwd)
-			return
-		if exectestconf_helper(cwd + 'testconf.py') or exectestconf_helper('testconf.py'):
-			os.chdir(cwd)
-			return
-		if os.path.isfile('testconf.py'):
-			execfile('testconf.py', globals())
-			os.chdir(cwd)
-			return
-		os.chdir(cwd)
-	elif os.path.isfile('testconf.py'):
-		execfile('testconf.py', globals())
-		return
-	raise KeyError, 'The configuration file for task ' + taskname + ' is missing'
-
-try:
-	name
-	namedefined = True
-except Exception:
-	namedefined = False
-
-for taskname in tasknames:
-	if ntasks:
-		print
-	
-	try:
-		if len(tasknames) > 1:
-			print taskname
-	except Exception:
-		if taskname != '.' or ntasks:
-			print taskname
-	
-	try: del inname
-	except NameError: pass
-	try: del outname
-	except NameError: pass
-	try: del ansname
-	except NameError: pass
-	
-	if not namedefined and taskname != '.':
-		name = './' + taskname
-	for k in shared:
-		g[k] = shared[k]
-	
-	oldcwd = os.getcwdu()
-	chdir_and_exec_testconf()
-	
-	if options.clean:
-		try:
-			if not stdio or tester:
-				if not tester:
-					inname
-				outname
-			if tester:
-				ansname
-		except NameError, error:
-			raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
-		if not options.erase:
-			try:
-				inname = inname.replace('%', taskname)
-			except NameError:
-				inname = taskname + '.in'
-			try:
-				outname = outname.replace('%', taskname)
-			except NameError:
-				outname = taskname + '.out'
-			try:
-				ansname = ansname.replace('%', taskname)
-			except NameError:
-				ansname = taskname + '.ans'
-		else:
-			inname = inname.replace('%', taskname)
-			outname = outname.replace('%', taskname)
-			if tester:
-				ansname = ansname.replace('%', taskname)
-		if not stdio or tester or not options.erase:
-			if os.path.exists(inname): os.remove(inname)
-			if os.path.exists(outname): os.remove(outname)
-		if (tester or not options.erase) and ansname:
-			if os.path.exists(ansname): os.remove(ansname)
-		continue
-	
-	try:
-		name
-	except NameError, error:
-		if str(error).count('name') == 1:
-			raise NameError, 'configuration ' + str(error), sys.exc_info()[2]
-		else:
-			raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
-	
-	try:
-		if not stdio:
-			inname
-			outname
-		testcaseinname
-		if tester:
-			outname
-			if ansname:
-				testcaseoutname
-		else:
-			testcaseoutname
-	except NameError, error:
-		raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
-	
-	if not options.erase:
-		try:
-			inname
-		except NameError:
-			inname = taskname + '.in'
-		try:
-			outname
-		except NameError:
-			outname = taskname + '.out'
-		try:
-			ansname
-		except NameError:
-			ansname = taskname + '.ans'
-	
-	if options.pause:
-		try:
-			pause
-		except NameError, error:
-			if os.name == 'posix':
-				pause = 'read -s -n 1'
-				print 'Configuration ' + str(error).replace('name ', 'variable ') + '; it was devised automatically but the choice might be incorrect, so test.py might exit immediately after the testing is complete.'
-			elif os.name == 'nt':
-				pause = 'pause'
-			else:
-				raise NameError, 'configuration ' + str(error).replace('name ', 'variable ') + ' and cannot be devised automatically', sys.exc_info()[2]
-	
-	if not dummyinname:
-		dummyinname = testcaseinname
-	if not dummyoutname and (not tester or ansname):
-		dummyoutname = testcaseoutname
-	
-	dummyinname = dummyinname.replace('%', taskname)
-	dummyoutname = dummyoutname.replace('%', taskname)
-	testcaseinname = testcaseinname.replace('%', taskname)
-	if not stdio or not options.erase:
-		inname = inname.replace('%', taskname)
-		outname = outname.replace('%', taskname)
-		try:
-			ansname = ansname.replace('%', taskname)
-		except NameError:
-			pass
-	if tester:
-		try: inname = inname.replace('%', taskname)
-		except NameError: pass
-		outname = outname.replace('%', taskname)
-		if ansname:
-			ansname = ansname.replace('%', taskname)
-			testcaseoutname = testcaseoutname.replace('%', taskname)
-	else:
-		testcaseoutname = testcaseoutname.replace('%', taskname)
-	
-	if isinstance(padwithzeroestolength, tuple):
-		padwithzeroestolength, paddummieswithzeroestolength = padwithzeroestolength
-	else:
-		paddummieswithzeroestolength = padwithzeroestolength
-	
-	if options.python:
-		dummies = ()
-		s = ' '.join(args)
-		tests = eval(s)
-		try:
-			tests.__iter__
-		except AttributeError:
-			tests = (tests,)
-	elif len(args):
-		if os.path.exists(args[0]):
-			name = args[0]
-			del args[0]
-		if len(args) > 1:
-			dummies = ()
-			tests = args
-		elif len(args):
-			dummies = ()
-			s = args[0]
-			if len(s) < padwithzeroestolength:
-				s = s.zfill(padwithzeroestolength)
-			if existstestcase(testcaseinname.replace('$', s)):
-				tests = (s,)
-			else:
-				try:
-					tests = eval(args[0])
-					try:
-						tests.__iter__
-					except AttributeError:
-						tests = (tests,)
-				except Exception:
-					tests = (s,)
-	
-	if options.exclude:
-		testsexcluded = []
-		for i in options.exclude:
-			v = eval(i)
-			try:
-				testsexcluded.extend(v)
-			except TypeError:
-				testsexcluded.append(v)
-	
-	# Windows doesn't like paths beginning with .\ and not ending with an extension
-	name = os.path.normcase(name)
-	if name.startswith('.\\'):
-		name = name[2:]
-	
-	newpointmap = {}
-	
-	for i in pointmap:
-		try:
-			for j in i:
-				newpointmap[j] = pointmap[i]
-		except TypeError:
-			newpointmap[i] = pointmap[i]
-	
-	pointmap = newpointmap
-	
-	if maxtime > 0:
-		strmaxtime = '/%.3f' % maxtime
-	else:
-		strmaxtime = ''
-	
-	padoutputtolength = 0
-	ntests = []
-	
-	for j in dummies:
-		try:
-			j.__iter__
-		except AttributeError:
-			j = (j,)
-		ntests.append((j, True))
-		for i in j:
-			s = str(i)
-			if len(s) < paddummieswithzeroestolength:
-				s = s.zfill(paddummieswithzeroestolength)
-			s = 'sample ' + s
-			if padoutputtolength < len(s):
-				padoutputtolength = len(s)
-	
-	for j in tests:
-		try:
-			j.__iter__
-		except AttributeError:
-			j = (j,)
-		ntests.append((j, False))
-		for i in j:
-			s = str(i)
-			if len(s) < padwithzeroestolength:
-				s = s.zfill(padwithzeroestolength)
-			if padoutputtolength < len(s):
-				padoutputtolength = len(s)
-	
-	tests = ntests
-	score = maxpoints = ncorrect = ntotal = ncorrectvalued = nvalued = 0
-	
-	if options.copyonly:
-		j, isdummy = tests[-1]
-		if isdummy:
-			realinname = dummyinname
-			realoutname = dummyoutname
-		else:
-			realinname = testcaseinname
-			realoutname = testcaseoutname
-		for i in j:
-			if i in testsexcluded and not isdummy:
-				continue
-			s = str(i)
-			if isdummy:
-				if len(s) < paddummieswithzeroestolength:
-					s = s.zfill(paddummieswithzeroestolength)
-			else:
-				if len(s) < padwithzeroestolength:
-					s = s.zfill(padwithzeroestolength)
-			copytestcase(realinname.replace('$', s), inname)
-			if ansname:
-				copytestcase(realoutname.replace('$', s), ansname)
-		continue
-	
-	for j, isdummy in tests:
-		ncorrectgrp = 0
-		ntotalgrp = 0
-		scoregrp = 0
-		maxpointsgrp = 0
-		if isdummy:
-			realinname = dummyinname
-			realoutname = dummyoutname
-		else:
-			realinname = testcaseinname
-			realoutname = testcaseoutname
-		for i in j:
-			if i in testsexcluded and not isdummy:
-				continue
-			ntotalgrp += 1
-			s = str(i)
-			if isdummy:
-				npoints = 0
-				if len(s) < paddummieswithzeroestolength:
-					s = s.zfill(paddummieswithzeroestolength)
-				spref = 'sample '
-			else:
-				npoints = pointmap.get(None, 1)
-				npoints = pointmap.get(i, npoints)
-				maxpointsgrp += npoints
-				if npoints:
-					nvalued += 1
-				if len(s) < padwithzeroestolength:
-					s = s.zfill(padwithzeroestolength)
-				spref = ''
-			print ' ' * (padoutputtolength - len(spref + s)) + spref + s + ':',
-			sys.stdout.flush()
-			outputdata = open(os.devnull, 'w')
-			if stdio:
-				f = tempfile.NamedTemporaryFile(delete=False)
-				inputdatafname = f.name
-				f.close()
-				copytestcase(realinname.replace('$', s), inputdatafname)
-				inputdata = open(inputdatafname, 'rU')
-				if options.erase:
-					tempoutput = tempfile.TemporaryFile('w+')
-				else:
-					tempoutput = open(outname, 'w+')
-				try:
-					proc = subprocess.Popen(name, stdin=inputdata, stdout=tempoutput, stderr=outputdata, universal_newlines=True)
-				except OSError, error:
-					raise OSError, 'The program to be tested cannot be launched: ' + str(error), sys.exc_info()[2]
-			else:
-				if os.path.exists(outname):
-					os.remove(outname)
-				copytestcase(realinname.replace('$', s), inname)
-				try:
-					proc = subprocess.Popen(name, stdin=outputdata, stdout=outputdata, stderr=outputdata, universal_newlines=True)
-				except OSError, error:
-					raise OSError, 'The program to be tested cannot be launched: ' + str(error), sys.exc_info()[2]
-			cl = clock()
-			if maxtime > 0:
-				while 1:
-					proc.poll()
-					elapsed = clock() - cl
-					if proc.returncode == None:
-						if elapsed >= maxtime:
-							print '%.3f%s s, 0/%d, time limit exceeded' % (elapsed, strmaxtime, npoints)
-							sys.stdout.flush()
-							while proc.returncode == None:
-								try:
-									proc.terminate()
-								except OSError:
-									pass
-								except AttributeError:
-									try:
-										os.kill(proc.pid, signal.SIGTERM)
-									except Exception:
-										pass
-								proc.poll()
-							outputdata.close()
-							if stdio:
-								tempoutput.close()
-							break
-					else:
-						print '%.3f%s s,' % (elapsed, strmaxtime),
-						sys.stdout.flush()
-						elapsed = 0
-						if stdio:
-							tempoutput.seek(0)
-							lines = tempoutput.readlines()
-							tempoutput.close()
-						break
-				if elapsed >= maxtime:
-					continue
-			else:
-				data = proc.communicate()
-				elapsed = clock() - cl
-				print '%.3f%s s,' % (elapsed, strmaxtime),
-				sys.stdout.flush()
-				if stdio:
-					tempoutput.seek(0)
-					lines = tempoutput.readlines()
-					tempoutput.close()
-			outputdata.close()
-			if stdio:
-				inputdata.close()
-				try:
-					os.unlink(inputdatafname)
-				except Exception:
-					pass
-			if proc.returncode > 0:
-				print '0/%d, non-zero return code %d' % (npoints, proc.returncode)
-				sys.stdout.flush()
-			elif proc.returncode < 0:
-				print '0/%d, terminated by signal %d' % (npoints, -proc.returncode)
-				sys.stdout.flush()
-			else:
-				if not tester:
-					if stdio:
-						outputdata = opentestcase(realoutname.replace('$', s))
-						r = 0
-						data = outputdata.read().splitlines(True)
-						if len(lines) != len(data):
-							r = 1
-						else:
-							for i in zip(lines, data):
-								if i[0] != i[1]:
-									r = 1
-									break
-						outputdata.close()
-					else:
-						try:
-							inputdata = open(outname, 'rU')
-						except IOError:
-							print '0/%g, output file not created or not readable' % npoints
-							sys.stdout.flush()
-							r = None
-						else:
-							outputdata = opentestcase(realoutname.replace('$', s))
-							r = 0
-							lines = inputdata.readlines()
-							data = outputdata.read().splitlines(True)
-							if len(lines) != len(data):
-								r = 1
-							else:
-								for i in zip(lines, data):
-									if i[0] != i[1]:
-										r = 1
-										break
-							inputdata.close()
-							outputdata.close()
-				else:
-					if ansname:
-						copytestcase(realoutname.replace('$', s), ansname)
-					if stdio:
-						try: copytestcase(realinname.replace('$', s), inname)
-						except NameError: pass
-						outputdata = open(outname, 'w')
-						outputdata.writelines(lines)
-						outputdata.close()
-					try:
-						proc = subprocess.Popen(tester, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True)
-					except OSError, error:
-						raise OSError, 'The tester application cannot be launched: ' + str(error), sys.exc_info()[2]
-					data = proc.communicate()
-					r = proc.returncode
-				if tester and data[0]:
-					data = ''.join((' (', data[0].strip(), ')'))
-				else:
-					data = ''
-				if r:
-					print '0/%g, wrong answer%s' % (npoints, data)
-					sys.stdout.flush()
-				elif r == 0:
-					print '%g/%g, OK%s' % (npoints, npoints, data)
-					sys.stdout.flush()
-					scoregrp += npoints
-					ncorrectgrp += 1
-					if npoints:
-						ncorrectvalued += 1
-		if ntotalgrp:
-			if scoregrp < maxpointsgrp:
-				scoregrp = 0
-			if ntotalgrp > 1:
-				print 'Group total: %d/%d tests; %g/%g points' % (ncorrectgrp, ntotalgrp, scoregrp, maxpointsgrp)
-				sys.stdout.flush()
-			ncorrect += ncorrectgrp
-			ntotal += ntotalgrp
-			score += scoregrp
-			maxpoints += maxpointsgrp
-	
-	if options.erase:
-		if not stdio or tester:
-			if os.path.exists(inname): os.remove(inname)
-			if os.path.exists(outname): os.remove(outname)
-		if tester and ansname:
-			if os.path.exists(ansname): os.remove(ansname)
-	elif stdio:
-		copytestcase(realinname.replace('$', s), inname)
-		copytestcase(realoutname.replace('$', s), ansname)
-	if nvalued != ntotal:
-		print 'Grand total: %d/%d tests (%d/%d valued); %g/%g points; weighted score: %g/%g' % (ncorrect, ntotal, ncorrectvalued, nvalued, score, maxpoints, (score*taskweight/maxpoints if not score*taskweight%maxpoints else float(score*taskweight)/maxpoints) if maxpoints else 0, taskweight)
-	else:
-		print 'Grand total: %d/%d tests; %g/%g points; weighted score: %g/%g' % (ncorrect, ntotal, score, maxpoints, (score*taskweight/maxpoints if not score*taskweight%maxpoints else float(score*taskweight)/maxpoints) if maxpoints else 0, taskweight)
-	
-	scoresumoveralltasks += (score*taskweight/maxpoints if not score*taskweight%maxpoints else float(score*taskweight)/maxpoints) if maxpoints else 0
-	scoremaxoveralltasks += taskweight
-	ntasks += 1
-	nfulltasks += int((score == maxpoints) if maxpoints else (taskweight == 0))
-	
-	os.chdir(oldcwd)
-
-if options.clean or options.copyonly:
-	sys.exit()
-
-if ntasks != 1:
-	print
-	print 'Grand grand total: %g/%g weighted points; %d/%d problems solved fully' % (scoresumoveralltasks, scoremaxoveralltasks, nfulltasks, ntasks)
-
-if options.pause:
-	print 'Press any key to exit... ',
-	sys.stdout.flush()
-	os.system(pause + ' >' + os.devnull)
--- a/2.00/compat.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,218 +0,0 @@
-#! /usr/bin/env python
-# Copyright (c) 2010 Chortos-2 <chortos@inbox.lv>
-
-# A compatibility layer for Python 2.5+. This is what lets test.py
-# run on all versions of Python starting with 2.5, including Python 3.
-
-# A few notes regarding some compatibility-driven peculiarities
-# in the use of the language that can be seen in all modules:
-#
-# * Except statements never specify target; instead, when needed,
-#   the exception is taken from sys.exc_info(). Blame the incompatible
-#   syntaxes of the except clause in Python 2.5 and Python 3 and the lack
-#   of preprocessor macros in Python of any version ;P.
-#
-# * Keyword-only parameters are never used, even for parameters
-#   that should never be given in as arguments. The reason is
-#   the laziness of some Python developers who have failed to finish
-#   implementing them in Python 2 even though they had several years
-#   of time and multiple version releases to sneak them in.
-#
-# * Abstract classes are only implemented for Python 2.6 and 2.7.
-#   ABC's require the abc module and the specification of metaclasses,
-#   but in Python 2.5, the abc module does not exist, while in Python 3,
-#   metaclasses are specified using a syntax totally incompatible
-#   with Python 2 and not usable conditionally via exec() and such
-#   because it is a detail of the syntax of the class statement itself.
-
-try:
-	import builtins
-except ImportError:
-	import __builtin__ as builtins
-
-__all__ = ('say', 'basestring', 'range', 'map', 'zip', 'filter', 'items',
-           'keys', 'values', 'zip_longest', 'callable',
-           'ABCMeta', 'abstractmethod', 'CompatBuiltins')
-
-try:
-	# Python 3
-	exec('say = print')
-except SyntaxError:
-	try:
-		# Python 2.6/2.7
-		# An alternative is exec('from __future__ import print_function; say = print');
-		# if problems arise with the current line, one should try replacing it
-		# with this one with the future import before abandoning the idea altogether
-		say = getattr(builtins, 'print')
-	except Exception:
-		# Python 2.5
-		import sys
-		# This should fully emulate the print function of Python 2.6 in Python 2.3+
-		# The error messages are taken from Python 2.6
-		# The name bindings at the bottom of this file are in effect
-		def saytypeerror(value, name):
-			return TypeError(' '.join((name, 'must be None, str or unicode, not', type(value).__name__)))
-		def say(*values, **kwargs):
-			sep  = kwargs.pop('sep' , None)
-			end  = kwargs.pop('end' , None)
-			file = kwargs.pop('file', None)
-			if kwargs: raise TypeError("'%s' is an invalid keyword argument for this function" % kwargs.popitem()[0])
-			if sep  is None: sep  = ' '
-			if end  is None: end  = '\n'
-			if file is None: file = sys.stdout
-			if not isinstance(sep, basestring): raise saytypeerror(sep, 'sep')
-			if not isinstance(end, basestring): raise saytypeerror(end, 'end')
-			file.write(sep.join(map(str, values)) + end)
-
-try:
-	from os.path import relpath
-except ImportError:
-	# Python 2.5
-	import os.path as _path
-	
-	# Adapted from Python 2.7.1
-	
-	if hasattr(_path, 'splitunc'):
-		def _abspath_split(path):
-			abs = _path.abspath(_path.normpath(path))
-			prefix, rest = _path.splitunc(abs)
-			is_unc = bool(prefix)
-			if not is_unc:
-				prefix, rest = _path.splitdrive(abs)
-			return is_unc, prefix, [x for x in rest.split(_path.sep) if x]
-	else:
-		def _abspath_split(path):
-			prefix, rest = _path.splitdrive(_path.abspath(_path.normpath(path)))
-			return False, prefix, [x for x in rest.split(_path.sep) if x]
-	
-	def relpath(path, start=_path.curdir):
-		"""Return a relative version of a path"""
-		
-		if not path:
-			raise ValueError("no path specified")
-		
-		start_is_unc, start_prefix, start_list = _abspath_split(start)
-		path_is_unc, path_prefix, path_list = _abspath_split(path)
-		
-		if path_is_unc ^ start_is_unc:
-			raise ValueError("Cannot mix UNC and non-UNC paths (%s and %s)"
-	                                                    		% (path, start))
-		if path_prefix.lower() != start_prefix.lower():
-			if path_is_unc:
-				raise ValueError("path is on UNC root %s, start on UNC root %s"
-		                                    		% (path_prefix, start_prefix))
-			else:
-				raise ValueError("path is on drive %s, start on drive %s"
-		                                    		% (path_prefix, start_prefix))
-		# Work out how much of the filepath is shared by start and path.
-		i = 0
-		for e1, e2 in zip(start_list, path_list):
-			if e1.lower() != e2.lower():
-				break
-			i += 1
-		
-		rel_list = [_path.pardir] * (len(start_list)-i) + path_list[i:]
-		if not rel_list:
-			return _path.curdir
-		return _path.join(*rel_list)
-	
-	_path.relpath = relpath
-
-def import_urllib():
-	try:
-		# Python 3
-		import urllib.request
-		return urllib.request, lambda url: urllib.request.urlopen(url).read().decode()
-	except ImportError:
-		# Python 2
-		import urllib
-		return urllib, lambda url: urllib.urlopen(url).read()
-
-try:
-	from abc import ABCMeta, abstractmethod
-except ImportError:
-	ABCMeta, abstractmethod = None, lambda x: x
-
-# In all of the following, the try clause is for Python 2 and the except
-# clause is for Python 3. More checks are performed than needed
-# for standard builds of Python to ensure as much as possible works
-# on custom builds.
-try:
-	basestring = basestring
-except NameError:
-	basestring = str
-
-try:
-	range = xrange
-except NameError:
-	range = range
-
-try:
-	callable = callable
-except NameError:
-	callable = lambda obj: hasattr(obj, '__call__')
-
-try:
-	next = next
-except NameError:
-	next = lambda obj: obj.next()
-
-try:
-	from itertools import imap as map
-except ImportError:
-	map = map
-
-try:
-	from itertools import izip as zip
-except ImportError:
-	zip = zip
-
-try:
-	from itertools import ifilter as filter
-except ImportError:
-	filter = filter
-
-items = dict.iteritems if hasattr(dict, 'iteritems') else dict.items
-keys = dict.iterkeys if hasattr(dict, 'iterkeys') else dict.keys
-values = dict.itervalues if hasattr(dict, 'itervalues') else dict.values
-
-try:
-	# Python 3
-	from itertools import zip_longest
-except ImportError:
-	try:
-		# Python 2.6/2.7
-		from itertools import izip_longest as zip_longest
-	except ImportError:
-		# Python 2.5
-		from itertools import chain, repeat
-		# Adapted from the documentation of itertools.izip_longest
-		def zip_longest(*args, **kwargs):
-			fillvalue = kwargs.get('fillvalue')
-			def sentinel(counter=([fillvalue]*(len(args)-1)).pop):
-				yield counter()
-			fillers = repeat(fillvalue)
-			iters = [chain(it, sentinel(), fillers) for it in args]
-			try:
-				for tup in zip(*iters):
-					yield tup
-			except IndexError:
-				pass
-
-# Automatically import * from this module into testconf.py's
-class CompatBuiltins(object):
-	__slots__ = 'originals'
-	def __init__(self):
-		self.originals = {}
-	def __enter__(self):
-		g = globals()
-		for name in __all__:
-			if hasattr(builtins, name):
-				self.originals[name] = getattr(builtins, name)
-			setattr(builtins, name, g[name])
-	def __exit__(self, exc_type, exc_val, exc_tb):
-		for name in self.originals:
-			setattr(builtins, name, self.originals[name])
-
-# Support simple testconf.py's written for test.py 1.x
-builtins.xrange = range
\ No newline at end of file
--- a/2.00/config.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,182 +0,0 @@
-#! /usr/bin/env python
-# Copyright (c) 2010 Chortos-2 <chortos@inbox.lv>
-
-from __future__ import division, with_statement
-
-try:
-	from compat import *
-	import files
-except ImportError:
-	import __main__
-	__main__.import_error(sys.exc_info()[1])
-else:
-	from __main__ import options
-
-if files.ZipArchive:
-	try:
-		import zipimport
-	except ImportError:
-		zipimport = None
-else:
-	zipimport = None
-
-import imp, os, sys, tempfile
-
-__all__ = 'load_problem', 'load_global', 'globalconf'
-
-defaults_problem = {'usegroups': False,
-                    'maxtime': None,
-                    'maxmemory': None,
-                    'dummies': {},
-                    'testsexcluded': (),
-                    'padtests': 0,
-                    'paddummies': 0,
-                    'taskweight': 100,
-                    'pointmap': {},
-                    'stdio': False,
-                    'dummyinname': '',
-                    'dummyoutname': '',
-                    'tester': None,
-                    'maxexitcode': 0,
-                    'inname': '',
-                    'ansname': ''}
-defaults_global = {'tasknames': None,
-                   'force_zero_exitcode': True}
-defaults_noerase = {'inname': '%.in',
-                    'outname': '%.out',
-                    'ansname': '%.ans'}
-patterns = ('inname', 'outname', 'ansname', 'testcaseinname',
-            'testcaseoutname', 'dummyinname', 'dummyoutname')
-
-class Config(object):
-	__slots__ = 'modules', '__dict__'
-	
-	def __init__(self, *modules):
-		self.modules = modules
-	
-	def __getattr__(self, name):
-		for module in self.modules:
-			try:
-				return getattr(module, name)
-			except AttributeError:
-				pass
-		# TODO: provide a message
-		raise AttributeError(name)
-
-# A helper context manager
-class ReadDeleting(object):
-	__slots__ = 'name', 'file'
-	
-	def __init__(self, name):
-		self.name = name
-	
-	def __enter__(self):
-		try:
-			self.file = open(self.name, 'rU')
-			return self.file
-		except:
-			try:
-				self.__exit__(None, None, None)
-			except:
-				pass
-			raise
-	
-	def __exit__(self, exc_type, exc_val, exc_tb):
-		self.file.close()
-		os.remove(self.name)
-
-def load_problem(problem_name):
-	dwb = sys.dont_write_bytecode
-	sys.dont_write_bytecode = True
-	metafile = files.File('/'.join((problem_name, 'testconf.py')), True, 'configuration')
-	module = None
-	with CompatBuiltins():
-		if zipimport and isinstance(metafile.archive, files.ZipArchive):
-			try:
-				module = zipimport.zipimporter(os.path.dirname(metafile.full_real_path)).load_module('testconf')
-			except zipimport.ZipImportError:
-				pass
-			else:
-				del sys.modules['testconf']
-		if not module:
-			try:
-				with metafile.open() as f:
-					module = imp.load_module('testconf', f, metafile.full_real_path, ('.py', 'r', imp.PY_SOURCE))
-			# Handle the case when f is not a true file object but imp requires one
-			except ValueError:
-				# FIXME: 2.5 lacks the delete parameter
-				with tempfile.NamedTemporaryFile(delete=False) as f:
-					inputdatafname = f.name
-				metafile.copy(inputdatafname)
-				with ReadDeleting(inputdatafname) as f:
-					module = imp.load_module('testconf', f, metafile.full_real_path, ('.py', 'r', imp.PY_SOURCE))
-			del sys.modules['testconf']
-	if hasattr(module, 'padwithzeroestolength'):
-		if not hasattr(module, 'padtests'):
-			try:
-				module.padtests = module.padwithzeroestolength[0]
-			except TypeError:
-				module.padtests = module.padwithzeroestolength
-		if not hasattr(module, 'paddummies'):
-			try:
-				module.paddummies = module.padwithzeroestolength[1]
-			except TypeError:
-				module.paddummies = module.padwithzeroestolength
-	for name in defaults_problem:
-		if not hasattr(globalconf, name):
-			setattr(module, name, getattr(module, name, defaults_problem[name]))
-	module = Config(module, globalconf)
-	if not module.dummyinname:
-		module.dummyinname = getattr(module, 'testcaseinname', module.dummyinname)
-	if not module.dummyoutname:
-		module.dummyoutname = getattr(module, 'testcaseoutname', module.dummyoutname)
-	if not hasattr(module, 'path'):
-		if hasattr(module, 'name'):
-			module.path = module.name
-		elif sys.platform != 'win32':
-			module.path = os.path.join(os.path.curdir, problem_name)
-		else:
-			module.path = problem_name
-	if options.no_maxtime:
-		module.maxtime = 0
-	sys.dont_write_bytecode = dwb
-	for name in patterns:
-		if hasattr(module, name):
-			setattr(module, name, getattr(module, name).replace('%', problem_name))
-	return module
-
-def load_global():
-	dwb = sys.dont_write_bytecode
-	sys.dont_write_bytecode = True
-	metafile = files.File('testconf.py', True, 'configuration')
-	module = None
-	with CompatBuiltins():
-		if zipimport and isinstance(metafile.archive, files.ZipArchive):
-			try:
-				module = zipimport.zipimporter(os.path.dirname(metafile.full_real_path)).load_module('testconf')
-			except zipimport.ZipImportError:
-				pass
-			else:
-				del sys.modules['testconf']
-		if not module:
-			try:
-				with metafile.open() as f:
-					module = imp.load_module('testconf', f, metafile.full_real_path, ('.py', 'r', imp.PY_SOURCE))
-			# Handle the case when f is not a true file object but imp requires one
-			except ValueError:
-				# FIXME: 2.5 lacks the delete parameter
-				with tempfile.NamedTemporaryFile(delete=False) as f:
-					inputdatafname = f.name
-				metafile.copy(inputdatafname)
-				with ReadDeleting(inputdatafname) as f:
-					module = imp.load_module('testconf', f, metafile.full_real_path, ('.py', 'r', imp.PY_SOURCE))
-			del sys.modules['testconf']
-	for name in defaults_global:
-		setattr(module, name, getattr(module, name, defaults_global[name]))
-	if not options.erase:
-		for name in defaults_noerase:
-			setattr(module, name, getattr(module, name, defaults_noerase[name]))
-	global globalconf
-	globalconf = module
-	sys.dont_write_bytecode = dwb
-	return module
\ No newline at end of file
--- a/2.00/files.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,250 +0,0 @@
-#! /usr/bin/env python
-# Copyright (c) 2010 Chortos-2 <chortos@inbox.lv>
-
-"""File access routines and classes with support for archives."""
-
-from __future__ import division, with_statement
-
-try:
-	from compat import *
-except ImportError:
-	import __main__
-	__main__.import_error(sys.exc_info()[1])
-
-import contextlib, os, shutil, sys
-
-# You don't need to know about anything else.
-__all__ = 'File',
-
-# In these two variables, use full stops no matter what os.extsep is;
-# all full stops will be converted to os.extsep on the fly
-archives = 'tests.tar', 'tests.zip', 'tests.tgz', 'tests.tar.gz', 'tests.tbz2', 'tests.tar.bz2'
-formats = {}
-
-class Archive(object):
-	__slots__ = 'file'
-	
-	if ABCMeta:
-		__metaclass__ = ABCMeta
-	
-	def __new__(cls, path):
-		"""
-		Create a new instance of the archive class corresponding
-		to the file name in the given path.
-		"""
-		if cls is not Archive:
-			return object.__new__(cls)
-		else:
-			# Do this by hand rather than through os.path.splitext
-			# because we support multi-dotted file name extensions
-			ext = path.partition(os.path.extsep)[2]
-			while ext:
-				if ext in formats:
-					return formats[ext](path)
-				ext = ext.partition(os.path.extsep)[2]
-			raise LookupError("unsupported archive file name extension in file name '%s'" % filename)
-	
-	@abstractmethod
-	def __init__(self, path): raise NotImplementedError
-	
-	@abstractmethod
-	def extract(self, name, target): raise NotImplementedError
-	
-	def __del__(self):
-		del self.file
-
-try:
-	import tarfile
-except ImportError:
-	TarArchive = None
-else:
-	class TarArchive(Archive):
-		__slots__ = '__namelist'
-		
-		def __init__(self, path):
-			self.file = tarfile.open(path)
-		
-		def extract(self, name, target):
-			member = self.file.getmember(name)
-			member.name = target
-			self.file.extract(member)
-		
-		# TODO: somehow automagically emulate universal line break support
-		def open(self, name):
-			return self.file.extractfile(name)
-		
-		def exists(self, queried_name):
-			if not hasattr(self, '__namelist'):
-				names = set()
-				for name in self.file.getnames():
-					cutname = name
-					while cutname:
-						names.add(cutname)
-						cutname = cutname.rpartition('/')[0]
-				self.__namelist = frozenset(names)
-			return queried_name in self.__namelist
-		
-		def __enter__(self):
-			if hasattr(self.file, '__enter__'):
-				self.file.__enter__()
-			return self
-		
-		def __exit__(self, exc_type, exc_value, traceback):
-			if hasattr(self.file, '__exit__'):
-				return self.file.__exit__(exc_type, exc_value, traceback)
-			elif exc_type is None:
-				self.file.close()
-			else:
-				# This code was shamelessly copied from tarfile.py of Python 2.7
-				if not self.file._extfileobj:
-					self.file.fileobj.close()
-				self.file.closed = True
-	
-	formats['tar'] = formats['tgz'] = formats['tar.gz'] = formats['tbz2'] = formats['tar.bz2'] = TarArchive
-
-try:
-	import zipfile
-except ImportError:
-	ZipArchive = None
-else:
-	class ZipArchive(Archive):
-		__slots__ = '__namelist'
-		
-		def __init__(self, path):
-			self.file = zipfile.ZipFile(path)
-		
-		def extract(self, name, target):
-			if os.path.isabs(target):
-				# To my knowledge, this is as portable as it gets
-				path = os.path.join(os.path.splitdrive(target)[0], os.path.sep)
-			else:
-				path = None
-			
-			member = self.file.getinfo(name)
-			member.filename = os.path.relpath(target, path)
-			# FIXME: 2.5 lacks ZipFile.extract
-			self.file.extract(member, path)
-		
-		def open(self, name):
-			return self.file.open(name, 'rU')
-		
-		def exists(self, queried_name):
-			if not hasattr(self, '__namelist'):
-				names = set()
-				for name in self.file.namelist():
-					cutname = name
-					while cutname:
-						names.add(cutname)
-						cutname = cutname.rpartition('/')[0]
-				self.__namelist = frozenset(names)
-			return queried_name in self.__namelist
-		
-		def __enter__(self):
-			if hasattr(self.file, '__enter__'):
-				self.file.__enter__()
-			return self
-		
-		def __exit__(self, exc_type, exc_value, traceback):
-			if hasattr(self.file, '__exit__'):
-				return self.file.__exit__(exc_type, exc_value, traceback)
-			else:
-				return self.file.close()
-	
-	formats['zip'] = ZipArchive
-
-# Remove unsupported archive formats and replace full stops
-# with the platform-dependent file name extension separator
-def issupported(filename, formats=formats):
-	ext = filename.partition('.')[2]
-	while ext:
-		if ext in formats: return True
-		ext = ext.partition('.')[2]
-	return False
-archives = [filename.replace('.', os.path.extsep) for filename in filter(issupported, archives)]
-formats = dict((item[0].replace('.', os.path.extsep), item[1]) for item in items(formats))
-
-open_archives = {}
-
-def open_archive(path):
-	if path in open_archives:
-		return open_archives[path]
-	else:
-		open_archives[path] = archive = Archive(path)
-		return archive
-
-class File(object):
-	__slots__ = 'virtual_path', 'real_path', 'full_real_path', 'archive'
-	
-	def __init__(self, virtpath, allow_root=False, msg='test data'):
-		self.virtual_path = virtpath
-		self.archive = None
-		if not self.realize_path('', tuple(comp.replace('.', os.path.extsep) for comp in virtpath.split('/')), allow_root):
-			raise IOError("%s file '%s' could not be found" % (msg, virtpath))
-	
-	def realize_path(self, root, virtpath, allow_root=False, hastests=False):
-		if root and not os.path.exists(root):
-			return False
-		if len(virtpath) > 1:
-			if self.realize_path(os.path.join(root, virtpath[0]), virtpath[1:], allow_root, hastests):
-				return True
-			elif not hastests:
-				if self.realize_path(os.path.join(root, 'tests'), virtpath, allow_root, True):
-					return True
-				for archive in archives:
-					path = os.path.join(root, archive)
-					if os.path.exists(path):
-						if self.realize_path_archive(open_archive(path), '', virtpath, path):
-							return True
-			if self.realize_path(root, virtpath[1:], allow_root, hastests):
-				return True
-		else:
-			if not hastests:
-				path = os.path.join(root, 'tests', virtpath[0])
-				if os.path.exists(path):
-					self.full_real_path = self.real_path = path
-					return True
-				for archive in archives:
-					path = os.path.join(root, archive)
-					if os.path.exists(path):
-						if self.realize_path_archive(open_archive(path), '', virtpath, path):
-							return True
-			if hastests or allow_root:
-				path = os.path.join(root, virtpath[0])
-				if os.path.exists(path):
-					self.full_real_path = self.real_path = path
-					return True
-		return False
-	
-	def realize_path_archive(self, archive, root, virtpath, archpath):
-		if root and not archive.exists(root):
-			return False
-		if root: path = ''.join((root, '/', virtpath[0]))
-		else: path = virtpath[0]
-		if len(virtpath) > 1:
-			if self.realize_path_archive(archive, path, virtpath[1:], archpath):
-				return True
-			elif self.realize_path_archive(archive, root, virtpath[1:], archpath):
-				return True
-		else:
-			if archive.exists(path):
-				self.archive = archive
-				self.real_path = path
-				self.full_real_path = os.path.join(archpath, *path.split('/'))
-				return True
-		return False
-	
-	def open(self):
-		if self.archive:
-			file = self.archive.open(self.real_path)
-			if hasattr(file, '__exit__'):
-				return file
-			else:
-				return contextlib.closing(file)
-		else:
-			return open(self.real_path)
-	
-	def copy(self, target):
-		if self.archive:
-			self.archive.extract(self.real_path, target)
-		else:
-			shutil.copy(self.real_path, target)
\ No newline at end of file
--- a/2.00/problem.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,202 +0,0 @@
-#! /usr/bin/env python
-# Copyright (c) 2010 Chortos-2 <chortos@inbox.lv>
-
-from __future__ import division, with_statement
-
-try:
-	from compat import *
-	import config, testcases
-except ImportError:
-	import __main__
-	__main__.import_error(sys.exc_info()[1])
-else:
-	from __main__ import clock, options
-
-import os, re, sys
-
-try:
-	import signal
-except ImportError:
-	signalnames = ()
-else:
-	# Construct a cache of all signal names available on the current
-	# platform. Prefer names from the UNIX standards over other versions.
-	unixnames = frozenset(('HUP', 'INT', 'QUIT', 'ILL', 'ABRT', 'FPE', 'KILL', 'SEGV', 'PIPE', 'ALRM', 'TERM', 'USR1', 'USR2', 'CHLD', 'CONT', 'STOP', 'TSTP', 'TTIN', 'TTOU', 'BUS', 'POLL', 'PROF', 'SYS', 'TRAP', 'URG', 'VTALRM', 'XCPU', 'XFSZ'))
-	signalnames = {}
-	for name in dir(signal):
-		if re.match('SIG[A-Z]+$', name):
-			value = signal.__dict__[name]
-			if isinstance(value, int) and (value not in signalnames or name[3:] in unixnames):
-				signalnames[value] = name
-	del unixnames
-
-__all__ = 'Problem', 'TestContext', 'test_context_end', 'TestGroup'
-
-def strerror(e):
-	s = getattr(e, 'strerror')
-	if not s: s = str(e)
-	return ' (%s%s)' % (s[0].lower(), s[1:]) if s else ''
-
-class Cache(object):
-	def __init__(self, mydict):
-		self.__dict__ = mydict
-
-class TestContext(object):
-	pass
-
-test_context_end = object()
-
-class TestGroup(TestContext):
-	__slots__ = 'case', 'log', 'correct', 'allcorrect', 'real', 'max', 'ntotal', 'nvalued', 'ncorrect', 'ncorrectvalued'
-	
-	def __init__(self):
-		self.real = self.max = self.ntotal = self.nvalued = self.ncorrect = self.ncorrectvalued = 0
-		self.allcorrect = True
-		self.log = []
-	
-	def case_start(self, case):
-		self.case = case
-		self.correct = False
-		self.ntotal += 1
-		self.max += case.points
-		if case.points:
-			self.nvalued += 1
-	
-	def case_correct(self):
-		self.correct = True
-		self.ncorrect += 1
-		if self.case.points:
-			self.ncorrectvalued += 1
-	
-	def case_end(self, granted):
-		self.log.append((self.case, self.correct, granted))
-		self.real += granted
-		del self.case
-		if not self.correct:
-			self.allcorrect = False
-	
-	def end(self):
-		say('Group total: %d/%d tests; %d/%d points' % (self.ncorrect, self.ntotal, self.real if self.allcorrect else 0, self.max))
-		# No real need to flush stdout, as it will anyway be flushed in a moment,
-		# when either the problem total or the next test case's ID is printed
-		if self.allcorrect:
-			return self.log
-		else:
-			return ((case, correct, 0) for case, correct, granted in self.log)
-
-class Problem(object):
-	__slots__ = 'name', 'config', 'cache', 'testcases'
-	
-	def __init__(prob, name):
-		if not isinstance(name, basestring):
-			# This shouldn't happen, of course
-			raise TypeError('Problem() argument 1 must be string, not ' + type(name).__name__)
-		prob.name = name
-		prob.config = config.load_problem(name)
-		if not getattr(prob.config, 'kind', None): prob.config.kind = 'batch'
-		prob.cache = Cache({'padoutput': 0})
-		prob.testcases = testcases.load_problem(prob)
-	
-	# TODO
-	def build(prob):
-		raise NotImplementedError
-	
-	def test(prob):
-		case = None
-		try:
-			contexts = [TestGroup()]
-			for case in prob.testcases:
-				if case is test_context_end:
-					for case, correct, granted in contexts.pop().end():
-						contexts[-1].case_start(case)
-						if correct:
-							contexts[-1].case_correct()
-						contexts[-1].case_end(granted)
-					continue
-				elif isinstance(case, TestContext):
-					contexts.append(case)
-					continue
-				contexts[-1].case_start(case)
-				granted = 0
-				id = str(case.id)
-				if case.isdummy:
-					id = 'sample ' + id
-				say('%*s: ' % (prob.cache.padoutput, id), end='')
-				sys.stdout.flush()
-				try:
-					granted = case(lambda: (say('%7.3f%s s, ' % (case.time_stopped - case.time_started, case.time_limit_string), end=''), sys.stdout.flush()))
-				except testcases.CanceledByUser:
-					verdict = 'canceled by the user'
-				except testcases.TimeLimitExceeded:
-					verdict = 'time limit exceeded'
-				except testcases.WrongAnswer:
-					e = sys.exc_info()[1]
-					if e.comment:
-						verdict = 'wrong answer (%s)' % e.comment
-					else:
-						verdict = 'wrong answer'
-				except testcases.NonZeroExitCode:
-					e = sys.exc_info()[1]
-					if e.exitcode < 0:
-						if sys.platform == 'win32':
-							verdict = 'terminated with error 0x%X' % (e.exitcode + 0x100000000)
-						elif -e.exitcode in signalnames:
-							verdict = 'terminated by signal %d (%s)' % (-e.exitcode, signalnames[-e.exitcode])
-						else:
-							verdict = 'terminated by signal %d' % -e.exitcode
-					else:
-						verdict = 'non-zero return code %d' % e.exitcode
-				except testcases.CannotStartTestee:
-					verdict = 'cannot launch the program to test%s' % strerror(sys.exc_info()[1].upstream)
-				except testcases.CannotStartValidator:
-					verdict = 'cannot launch the validator%s' % strerror(sys.exc_info()[1].upstream)
-				except testcases.CannotReadOutputFile:
-					verdict = 'cannot read the output file%s' % strerror(sys.exc_info()[1].upstream)
-				except testcases.CannotReadInputFile:
-					verdict = 'cannot read the input file%s' % strerror(sys.exc_info()[1].upstream)
-				except testcases.CannotReadAnswerFile:
-					verdict = 'cannot read the reference output file%s' % strerror(sys.exc_info()[1].upstream)
-				except testcases.TestCaseNotPassed:
-					verdict = 'unspecified reason [this may be a bug in test.py]%s' % strerror(sys.exc_info()[1])
-				#except Exception:
-				#	verdict = 'unknown error [this may be a bug in test.py]%s' % strerror(sys.exc_info()[1])
-				else:
-					try:
-						granted, comment = granted
-					except TypeError:
-						comment = ''
-					else:
-						if comment:
-							comment = ' (%s)' % comment
-					if granted >= 1:
-						contexts[-1].case_correct()
-						verdict = 'OK' + comment
-					elif not granted:
-						verdict = 'wrong answer' + comment
-					else:
-						verdict = 'partly correct' + comment
-					granted *= case.points
-				say('%g/%g, %s' % (granted, case.points, verdict))
-				contexts[-1].case_end(granted)
-			weighted = contexts[0].real * prob.config.taskweight / contexts[0].max if contexts[0].max else 0
-			if contexts[0].nvalued != contexts[0].ntotal:
-				say('Problem total: %d/%d tests (%d/%d valued); %g/%g points; weighted score: %g/%g' % (contexts[0].ncorrect, contexts[0].ntotal, contexts[0].ncorrectvalued, contexts[0].nvalued, contexts[0].real, contexts[0].max, weighted, prob.config.taskweight))
-			else:
-				say('Problem total: %d/%d tests; %g/%g points; weighted score: %g/%g' % (contexts[0].ncorrect, contexts[0].ntotal, contexts[0].real, contexts[0].max, weighted, prob.config.taskweight))
-			sys.stdout.flush()
-			return weighted, prob.config.taskweight
-		finally:
-			if options.erase and (not prob.config.stdio or case and case.validator):
-				for var in 'in', 'out':
-					name = getattr(prob.config, var + 'name')
-					if name:
-						try:
-							os.remove(name)
-						except Exception:
-							pass
-				if case.validator and not callable(case.validator):
-					if prob.config.ansname:
-						try:
-							os.remove(prob.config.ansname)
-						except Exception:
-							pass
\ No newline at end of file
--- a/2.00/publish.sh	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,11 +0,0 @@
-#! /bin/sh
-
-VERSION=`hg summary | grep '^parent' | sed -En 's/^parent: [0-9]*:([0-9a-f]+) .*$/\1/p'`
-if [ -z "$VERSION" ]
-then
-	echo The current Mercurial changeset could not be determined. >&2
-	exit 1
-fi
-
-sed 's/$$REV$\$/hg '"$VERSION/" upreckon-vcs >upreckon
-chmod +x upreckon
\ No newline at end of file
--- a/2.00/testcases.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,549 +0,0 @@
-#! /usr/bin/env python
-# Copyright (c) 2010 Chortos-2 <chortos@inbox.lv>
-
-# TODO: copy the ansfile if not options.erase even if no validator is used
-
-from __future__ import division, with_statement
-
-try:
-	from compat import *
-	import files, problem, config
-except ImportError:
-	import __main__
-	__main__.import_error(sys.exc_info()[1])
-else:
-	from __main__ import clock, options
-
-import glob, re, sys, tempfile, time
-from subprocess import Popen, PIPE, STDOUT
-
-import os
-devnull = open(os.path.devnull, 'w+')
-
-try:
-	from signal import SIGTERM, SIGKILL
-except ImportError:
-	SIGTERM = 15
-	SIGKILL = 9
-
-try:
-	from _subprocess import TerminateProcess
-except ImportError:
-	# CPython 2.5 does define _subprocess.TerminateProcess even though it is
-	# not used in the subprocess module, but maybe something else does not
-	try:
-		import ctypes
-		TerminateProcess = ctypes.windll.kernel32.TerminateProcess
-	except (ImportError, AttributeError):
-		TerminateProcess = None
-
-
-# Do the hacky-wacky dark magic needed to catch presses of the Escape button.
-# If only Python supported forcible termination of threads...
-if not sys.stdin.isatty():
-	canceled = init_canceled = lambda: False
-	pause = None
-else:
-	try:
-		# Windows has select() too, but it is not the select() we want
-		import msvcrt
-	except ImportError:
-		try:
-			import select, termios, tty, atexit
-		except ImportError:
-			# It cannot be helped!
-			# Silently disable support for killing the program being tested
-			canceled = init_canceled = lambda: False
-			pause = None
-		else:
-			def cleanup(old=termios.tcgetattr(sys.stdin.fileno())):
-				termios.tcsetattr(sys.stdin.fileno(), termios.TCSAFLUSH, old)
-			atexit.register(cleanup)
-			del cleanup
-			tty.setcbreak(sys.stdin.fileno())
-			def canceled(select=select.select, stdin=sys.stdin, read=sys.stdin.read):
-				while select((stdin,), (), (), 0)[0]:
-					if read(1) == '\33':
-						return True
-				return False
-			def init_canceled():
-				while select.select((sys.stdin,), (), (), 0)[0]:
-					sys.stdin.read(1)
-			def pause():
-				sys.stdin.read(1)
-	else:
-		def canceled(kbhit=msvcrt.kbhit, getch=msvcrt.getch):
-			while kbhit():
-				c = getch()
-				if c == '\33':
-					return True
-				elif c == '\0':
-					# Let's hope no-one is fiddling with this
-					getch()
-			return False
-		def init_canceled():
-			while msvcrt.kbhit():
-				msvcrt.getch()
-		def pause():
-			msvcrt.getch()
-
-
-__all__ = ('TestCase', 'load_problem', 'TestCaseNotPassed',
-           'TimeLimitExceeded', 'CanceledByUser', 'WrongAnswer',
-           'NonZeroExitCode', 'CannotStartTestee',
-           'CannotStartValidator', 'CannotReadOutputFile',
-           'CannotReadInputFile', 'CannotReadAnswerFile')
-
-
-
-# Exceptions
-
-class TestCaseNotPassed(Exception): __slots__ = ()
-class TimeLimitExceeded(TestCaseNotPassed): __slots__ = ()
-class CanceledByUser(TestCaseNotPassed): __slots__ = ()
-
-class WrongAnswer(TestCaseNotPassed):
-	__slots__ = 'comment'
-	def __init__(self, comment=''):
-		self.comment = comment
-
-class NonZeroExitCode(TestCaseNotPassed):
-	__slots__ = 'exitcode'
-	def __init__(self, exitcode):
-		self.exitcode = exitcode
-
-class ExceptionWrapper(TestCaseNotPassed):
-	__slots__ = 'upstream'
-	def __init__(self, upstream):
-		self.upstream = upstream
-
-class CannotStartTestee(ExceptionWrapper): __slots__ = ()
-class CannotStartValidator(ExceptionWrapper): __slots__ = ()
-class CannotReadOutputFile(ExceptionWrapper): __slots__ = ()
-class CannotReadInputFile(ExceptionWrapper): __slots__ = ()
-class CannotReadAnswerFile(ExceptionWrapper): __slots__ = ()
-
-
-
-# Helper context managers
-
-class CopyDeleting(object):
-	__slots__ = 'case', 'file', 'name'
-	
-	def __init__(self, case, file, name):
-		self.case = case
-		self.file = file
-		self.name = name
-	
-	def __enter__(self):
-		if self.name:
-			try:
-				self.file.copy(self.name)
-			except:
-				try:
-					self.__exit__(None, None, None)
-				except:
-					pass
-				raise
-	
-	def __exit__(self, exc_type, exc_val, exc_tb):
-		if self.name:
-			self.case.files_to_delete.append(self.name)
-
-
-class Copying(object):
-	__slots__ = 'file', 'name'
-	
-	def __init__(self, file, name):
-		self.file = file
-		self.name = name
-	
-	def __enter__(self):
-		if self.name:
-			self.file.copy(self.name)
-	
-	def __exit__(self, exc_type, exc_val, exc_tb):
-		pass
-
-
-
-# Test case types
-
-class TestCase(object):
-	__slots__ = ('problem', 'id', 'isdummy', 'infile', 'outfile', 'points',
-	             'process', 'time_started', 'time_stopped', 'time_limit_string',
-	             'realinname', 'realoutname', 'maxtime', 'maxmemory',
-	             'has_called_back', 'files_to_delete')
-	
-	if ABCMeta:
-		__metaclass__ = ABCMeta
-	
-	def __init__(case, prob, id, isdummy, points):
-		case.problem = prob
-		case.id = id
-		case.isdummy = isdummy
-		case.points = points
-		case.maxtime = case.problem.config.maxtime
-		case.maxmemory = case.problem.config.maxmemory
-		if case.maxtime:
-			case.time_limit_string = '/%.3f' % case.maxtime
-		else:
-			case.time_limit_string = ''
-		if not isdummy:
-			case.realinname = case.problem.config.testcaseinname
-			case.realoutname = case.problem.config.testcaseoutname
-		else:
-			case.realinname = case.problem.config.dummyinname
-			case.realoutname = case.problem.config.dummyoutname
-	
-	@abstractmethod
-	def test(case): raise NotImplementedError
-	
-	def __call__(case, callback):
-		case.has_called_back = False
-		case.files_to_delete = []
-		try:
-			return case.test(callback)
-		finally:
-			now = clock()
-			if not getattr(case, 'time_started', None):
-				case.time_started = case.time_stopped = now
-			elif not getattr(case, 'time_stopped', None):
-				case.time_stopped = now
-			if not case.has_called_back:
-				callback()
-			case.cleanup()
-	
-	def cleanup(case):
-		#if getattr(case, 'infile', None):
-		#	case.infile.close()
-		#if getattr(case, 'outfile', None):
-		#	case.outfile.close()
-		if getattr(case, 'process', None):
-			# Try killing after three unsuccessful TERM attempts in a row
-			# (except on Windows, where TERMing is killing)
-			for i in range(3):
-				try:
-					try:
-						case.process.terminate()
-					except AttributeError:
-						# Python 2.5
-						if TerminateProcess and hasattr(proc, '_handle'):
-							# Windows API
-							TerminateProcess(proc._handle, 1)
-						else:
-							# POSIX
-							os.kill(proc.pid, SIGTERM)
-				except Exception:
-					time.sleep(0)
-					case.process.poll()
-				else:
-					case.process.wait()
-					break
-			else:
-				# If killing the process is unsuccessful three times in a row,
-				# just silently stop trying
-				for i in range(3):
-					try:
-						try:
-							case.process.kill()
-						except AttributeError:
-							# Python 2.5
-							if TerminateProcess and hasattr(proc, '_handle'):
-								# Windows API
-								TerminateProcess(proc._handle, 1)
-							else:
-								# POSIX
-								os.kill(proc.pid, SIGKILL)
-					except Exception:
-						time.sleep(0)
-						case.process.poll()
-					else:
-						case.process.wait()
-						break
-		if case.files_to_delete:
-			for name in case.files_to_delete:
-				try:
-					os.remove(name)
-				except Exception:
-					# It can't be helped
-					pass
-	
-	def open_infile(case):
-		try:
-			case.infile = files.File('/'.join((case.problem.name, case.realinname.replace('$', case.id))))
-		except IOError:
-			e = sys.exc_info()[1]
-			raise CannotReadInputFile(e)
-	
-	def open_outfile(case):
-		try:
-			case.outfile = files.File('/'.join((case.problem.name, case.realoutname.replace('$', case.id))))
-		except IOError:
-			e = sys.exc_info()[1]
-			raise CannotReadAnswerFile(e)
-
-
-class ValidatedTestCase(TestCase):
-	__slots__ = 'validator'
-	
-	def __init__(case, *args):
-		TestCase.__init__(case, *args)
-		if not case.problem.config.tester:
-			case.validator = None
-		else:
-			case.validator = case.problem.config.tester
-	
-	def validate(case, output):
-		if not case.validator:
-			# Compare the output with the reference output
-			case.open_outfile()
-			with case.outfile.open() as refoutput:
-				for line, refline in zip_longest(output, refoutput):
-					if refline is not None and not isinstance(refline, basestring):
-						line = bytes(line, sys.getdefaultencoding())
-					if line != refline:
-						raise WrongAnswer
-			return 1
-		elif callable(case.validator):
-			return case.validator(output)
-		else:                 
-			# Call the validator program
-			output.close()
-			if case.problem.config.ansname:
-				case.open_outfile()
-				case.outfile.copy(case.problem.config.ansname)
-			try:
-				case.process = Popen(case.validator, stdin=devnull, stdout=PIPE, stderr=STDOUT, universal_newlines=True, bufsize=-1)
-			except OSError:
-				raise CannotStartValidator(sys.exc_info()[1])
-			comment = case.process.communicate()[0].strip()
-			match = re.match(r'(?i)(ok|(?:correct|wrong)(?:(?:\s|_)*answer)?)(?:$|\s+|[.,!:]+\s*)', comment)
-			if match:
-				comment = comment[match.end():]
-			if not case.problem.config.maxexitcode:
-				if case.process.returncode:
-					raise WrongAnswer(comment)
-				else:
-					return 1, comment
-			else:
-				return case.process.returncode / case.problem.config.maxexitcode, comment
-
-
-class BatchTestCase(ValidatedTestCase):
-	__slots__ = ()
-	
-	def test(case, callback):
-		init_canceled()
-		if sys.platform == 'win32' or not case.maxmemory:
-			preexec_fn = None
-		else:
-			def preexec_fn():
-				try:
-					import resource
-					maxmemory = int(case.maxmemory * 1048576)
-					resource.setrlimit(resource.RLIMIT_AS, (maxmemory, maxmemory))
-					# I would also set a CPU time limit but I do not want the time
-					# that passes between the calls to fork and exec to be counted in
-				except MemoryError:
-					# We do not have enough memory for ourselves;
-					# let the parent know about this
-					raise
-				except Exception:
-					# Well, at least we tried
-					pass
-		case.open_infile()
-		case.time_started = None
-		if case.problem.config.stdio:
-			if options.erase and not case.validator and case.problem.config.inname:
-				# TODO: re-use the same file name if possible
-				# FIXME: 2.5 lacks the delete parameter
-				with tempfile.NamedTemporaryFile(delete=False) as f:
-					inputdatafname = f.name
-				contextmgr = CopyDeleting(case, case.infile, inputdatafname)
-			else:
-				inputdatafname = case.problem.config.inname
-				contextmgr = Copying(case.infile, inputdatafname)
-			with contextmgr:
-				# FIXME: this U doesn't do anything good for the child process, does it?
-				with open(inputdatafname, 'rU') as infile:
-					with tempfile.TemporaryFile('w+') if options.erase and not case.validator else open(case.problem.config.outname, 'w+') as outfile:
-						try:
-							try:
-								case.process = Popen(case.problem.config.path, stdin=infile, stdout=outfile, stderr=devnull, universal_newlines=True, bufsize=-1, preexec_fn=preexec_fn)
-							except MemoryError:
-								# If there is not enough memory for the forked test.py,
-								# opt for silent dropping of the limit
-								# TODO: show a warning somewhere
-								case.process = Popen(case.problem.config.path, stdin=infile, stdout=outfile, stderr=devnull, universal_newlines=True, bufsize=-1)
-						except OSError:
-							raise CannotStartTestee(sys.exc_info()[1])
-						case.time_started = clock()
-						time_next_check = case.time_started + .15
-						if not case.maxtime:
-							while True:
-								exitcode, now = case.process.poll(), clock()
-								if exitcode is not None:
-									case.time_stopped = now
-									break
-								# For some reason (probably Microsoft's fault),
-								# msvcrt.kbhit() is slow as hell
-								else:
-									if now >= time_next_check:
-										if canceled():
-											raise CanceledByUser
-										else:
-											time_next_check = now + .15
-									time.sleep(0)
-						else:
-							time_end = case.time_started + case.maxtime
-							while True:
-								exitcode, now = case.process.poll(), clock()
-								if exitcode is not None:
-									case.time_stopped = now
-									break
-								elif now >= time_end:
-									raise TimeLimitExceeded
-								else:
-									if now >= time_next_check:
-										if canceled():
-											raise CanceledByUser
-										else:
-											time_next_check = now + .15
-									time.sleep(0)
-						if config.globalconf.force_zero_exitcode and case.process.returncode:
-							raise NonZeroExitCode(case.process.returncode)
-						callback()
-						case.has_called_back = True
-						outfile.seek(0)
-						return case.validate(outfile)
-		else:
-			case.infile.copy(case.problem.config.inname)
-			try:
-				try:
-					case.process = Popen(case.problem.config.path, stdin=devnull, stdout=devnull, stderr=STDOUT, preexec_fn=preexec_fn)
-				except MemoryError:
-					# If there is not enough memory for the forked test.py,
-					# opt for silent dropping of the limit
-					# TODO: show a warning somewhere
-					case.process = Popen(case.problem.config.path, stdin=devnull, stdout=devnull, stderr=STDOUT)
-			except OSError:
-				raise CannotStartTestee(sys.exc_info()[1])
-			case.time_started = clock()
-			time_next_check = case.time_started + .15
-			if not case.maxtime:
-				while True:
-					exitcode, now = case.process.poll(), clock()
-					if exitcode is not None:
-						case.time_stopped = now
-						break
-					else:
-						if now >= time_next_check:
-							if canceled():
-								raise CanceledByUser
-							else:
-								time_next_check = now + .15
-						time.sleep(0)
-			else:
-				time_end = case.time_started + case.maxtime
-				while True:
-					exitcode, now = case.process.poll(), clock()
-					if exitcode is not None:
-						case.time_stopped = now
-						break
-					elif now >= time_end:
-						raise TimeLimitExceeded
-					else:
-						if now >= time_next_check:
-							if canceled():
-								raise CanceledByUser
-							else:
-								time_next_check = now + .15
-						time.sleep(0)
-			if config.globalconf.force_zero_exitcode and case.process.returncode:
-				raise NonZeroExitCode(case.process.returncode)
-			callback()
-			case.has_called_back = True
-			with open(case.problem.config.outname, 'rU') as output:
-				return case.validate(output)
-
-
-# This is the only test case type not executing any programs to be tested
-class OutputOnlyTestCase(ValidatedTestCase):
-	__slots__ = ()
-	def cleanup(case): pass
-
-class BestOutputTestCase(ValidatedTestCase):
-	__slots__ = ()
-
-# This is the only test case type executing two programs simultaneously
-class ReactiveTestCase(TestCase):
-	__slots__ = ()
-	# The basic idea is to launch the program to be tested and the grader
-	# and to pipe their standard I/O from and to each other,
-	# and then to capture the grader's exit code and use it
-	# like the exit code of an output validator is used.
-
-
-def load_problem(prob, _types={'batch'   : BatchTestCase,
-                               'outonly' : OutputOnlyTestCase,
-                               'bestout' : BestOutputTestCase,
-                               'reactive': ReactiveTestCase}):
-	# We will need to iterate over these configuration variables twice
-	try:
-		len(prob.config.dummies)
-	except Exception:
-		prob.config.dummies = tuple(prob.config.dummies)
-	try:
-		len(prob.config.tests)
-	except Exception:
-		prob.config.tests = tuple(prob.config.tests)
-	
-	if options.legacy:
-		prob.config.usegroups = False
-		prob.config.tests = list(prob.config.tests)
-		for i, name in enumerate(prob.config.tests):
-			# Same here; we'll need to iterate over them twice
-			try:
-				l = len(name)
-			except Exception:
-				try:
-					name = tuple(name)
-				except TypeError:
-					name = (name,)
-				l = len(name)
-			if len(name) > 1:
-				prob.config.usegroups = True
-				break
-			elif not len(name):
-				prob.config.tests[i] = (name,)
-	
-	# First get prob.cache.padoutput right,
-	# then yield the actual test cases
-	for i in prob.config.dummies:
-		s = 'sample ' + str(i).zfill(prob.config.paddummies)
-		prob.cache.padoutput = max(prob.cache.padoutput, len(s))
-	if prob.config.usegroups:
-		for group in prob.config.tests:
-			for i in group:
-				s = str(i).zfill(prob.config.padtests)
-				prob.cache.padoutput = max(prob.cache.padoutput, len(s))
-		for i in prob.config.dummies:
-			s = str(i).zfill(prob.config.paddummies)
-			yield _types[prob.config.kind](prob, s, True, 0)
-		for group in prob.config.tests:
-			yield problem.TestGroup()
-			for i in group:
-				s = str(i).zfill(prob.config.padtests)
-				yield _types[prob.config.kind](prob, s, False, prob.config.pointmap.get(i, prob.config.pointmap.get(None, prob.config.maxexitcode if prob.config.maxexitcode else 1)))
-			yield problem.test_context_end
-	else:
-		for i in prob.config.tests:
-			s = str(i).zfill(prob.config.padtests)
-			prob.cache.padoutput = max(prob.cache.padoutput, len(s))
-		for i in prob.config.dummies:
-			s = str(i).zfill(prob.config.paddummies)
-			yield _types[prob.config.kind](prob, s, True, 0)
-		for i in prob.config.tests:
-			s = str(i).zfill(prob.config.padtests)
-			yield _types[prob.config.kind](prob, s, False, prob.config.pointmap.get(i, prob.config.pointmap.get(None, prob.config.maxexitcode if prob.config.maxexitcode else 1)))
\ No newline at end of file
--- a/2.00/upreckon-vcs	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,156 +0,0 @@
-#! /usr/bin/env python
-# Copyright (c) 2009-2010 Chortos-2 <chortos@inbox.lv>
-
-from __future__ import division, with_statement
-import optparse, sys, compat
-
-def import_error(e):
-	say('Error: your installation of Upreckon is incomplete;', str(e).lower() + '.', file=sys.stderr)
-	sys.exit(3)
-
-from compat import *
-
-version = '2.00.0 ($$REV$$)'
-parser = optparse.OptionParser(version='Upreckon '+version, epilog='Python 2.5 or newer is required.')
-parser.add_option('-1', dest='legacy', action='store_true', default=False, help='handle configuration files in a way more compatible with test.py 1.x')
-parser.add_option('-u', '--update', dest='update', action='store_true', default=False, help='update the installed Upreckon to the latest publicly available version')
-parser.add_option('-p', '--problem', dest='problems', metavar='PROBLEM', action='append', help='test only the PROBLEM (this option can be specified more than once with different problem names, all of which will be tested)')
-parser.add_option('-m', '--copy-io', dest='copyonly', action='store_true', default=False, help='create a copy of the input/output files of the last test case for manual testing and exit')
-parser.add_option('-x', '--auto-exit', dest='pause', action='store_false', default=True, help='do not wait for a key to be pressed after finishing testing')
-parser.add_option('-s', '--save-io', dest='erase', action='store_false', default=True, help='do not delete the copies of input/output files after the last test case; create copies of input files and store output in files even if the solution uses standard I/O; delete the stored input/output files if the solution uses standard I/O and the -c/--cleanup option is specified')
-parser.add_option('-t', '--detect-time', dest='autotime', action='store_true', default=False, help='spend a second detecting the most precise time measurement function')
-parser.add_option('--no-time-limits', dest='no_maxtime', action='store_true', default=False, help='disable all time limits')
-
-options, args = parser.parse_args()
-parser.destroy()
-del parser
-
-if options.update:
-	try:
-		urllib, urlread = compat.import_urllib()
-	except ImportError:
-		sys.exit('Error: the urllib Python module is missing. Without it, an automatic update is impossible.')
-	
-	latesttext = urlread('http://chortos.selfip.net/~astiob/test.py/version.txt')
-	latest = latesttext.split('.')
-	installed = version.split('.')
-	update = None
-	
-	if latest[0] > installed[0]:
-		update = 'major'
-	elif latest[0] == installed[0]:
-		if latest[1] > installed[1]:
-			update = 'feature'
-		elif latest[1] == installed[1]:
-			if latest[2] > installed[2]:
-				update = 'bug-fixing'
-			elif latest[2] == installed[2]:
-				say('You are using the latest publicly available version of Upreckon.')
-				sys.exit()
-	
-	if not update:
-		say('Your copy of Upreckon is newer than the publicly available version.')
-		sys.exit()
-	
-	say('A ' + update + ' update to Upreckon is available. Downloading...')
-	sys.stdout.flush()
-	# FIXME: need to update all files!
-	urllib.urlretrieve('http://chortos.selfip.net/~astiob/test.py/test.py', sys.argv[0])
-	say('Downloaded and installed. Now you are using Upreckon ' + latesttext + '.')
-	sys.exit()
-
-import config, itertools, os, subprocess, sys, time
-
-if options.autotime:
-	# This is really a dirty hack that assumes that sleep() does not spend
-	# the CPU time of the current process and that if clock() measures
-	# wall-clock time, then it is more precise than time() is. Both these
-	# assumptions are true on all platforms I have tested this on so far,
-	# but I am not aware of any guarantee that they will both be true
-	# on every other platform.
-	c = time.clock()
-	time.sleep(1)
-	c = time.clock() - c
-	if int(c + .5) == 1:
-		clock = time.clock
-	else:
-		clock = time.time
-elif sys.platform == 'win32':
-	clock = time.clock
-else:
-	clock = time.time
-
-try:
-	from testcases import pause
-except ImportError:
-	pause = None
-
-try:
-	globalconf = config.load_global()
-
-	# Do this check here so that if we have to warn them, we do it as early as possible
-	if options.pause and not pause and not hasattr(globalconf, 'pause'):
-		if os.name == 'posix':
-			globalconf.pause = 'read -s -n 1'
-			say('Warning: configuration variable pause is not defined; it was devised automatically but the choice might be incorrect, so Upreckon might exit immediately after the testing is completed.', file=sys.stderr)
-			sys.stderr.flush()
-		elif os.name == 'nt':
-			globalconf.pause = 'pause'
-		else:
-			sys.exit('Error: configuration variable pause is not defined and cannot be devised automatically.')
-
-	try:
-		from problem import *
-	except ImportError:
-		import_error(sys.exc_info()[1])
-
-	# Support single-problem configurations
-	if globalconf.tasknames is None:
-		shouldprintnames = False
-		globalconf.multiproblem = False
-		globalconf.tasknames = os.path.curdir,
-	else:
-		globalconf.multiproblem = True
-		shouldprintnames = True
-
-	ntasks = 0
-	nfulltasks = 0
-	maxscore = 0
-	realscore = 0
-
-	for taskname in (globalconf.tasknames if not options.problems else options.problems):
-		problem = Problem(taskname)
-		
-		if ntasks and not options.copyonly: say()
-		if shouldprintnames: say(taskname)
-		
-		if options.copyonly:
-			problem.copytestdata()
-		else:
-			real, max = problem.test()
-		
-		ntasks += 1
-		nfulltasks += real == max
-		realscore += real
-		maxscore += max
-
-	if options.copyonly:
-		sys.exit()
-
-	if ntasks != 1:
-		say()
-		say('Grand grand total: %g/%g weighted points; %d/%d problems solved fully' % (realscore, maxscore, nfulltasks, ntasks))
-except KeyboardInterrupt:
-	sys.exit('Exiting due to a keyboard interrupt.')
-
-if options.pause:
-	say('Press any key to exit...')
-	sys.stdout.flush()
-	
-	if pause:
-		pause()
-	elif callable(globalconf.pause):
-		globalconf.pause()
-	else:
-		with open(os.devnull, 'w') as devnull:
-			subprocess.call(globalconf.pause, stdout=devnull, stderr=subprocess.STDOUT)
\ No newline at end of file
--- a/2.00/upreckon.sublime-project	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,10 +0,0 @@
-<!-- Documentation is available at http://www.sublimetext.com/docs/projects -->
-<project>
-	<mount name="2.00" dir="." exclude="*.png,*.jpg,*.exe,*.dll,*.obj,*.pyc" direxclude=".svn,.git,.hg,CVS,bin,*"/>
-	<!-- <mount name="1.21" dir=".." include="*.py" direxclude="*"/> -->
-	<options>
-<![CDATA[
-buildFile Packages/C++/Make.sublime-build
-]]>
-	</options>
-</project>
--- a/2.00/zipfile.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,7 +0,0 @@
-import sys
-if sys.version_info[0] >= 3:
-	from zipfile31 import *
-elif sys.version_info[1] >= 7:
-	from zipfile27 import *
-else:
-	from zipfile26 import *
\ No newline at end of file
--- a/2.00/zipfile26.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1436 +0,0 @@
-"""
-Read and write ZIP files.
-"""
-# Improved by Chortos-2 in 2009 and 2010 (added bzip2 support)
-import struct, os, time, sys, shutil
-import binascii, cStringIO, stat
-
-try:
-    import zlib # We may need its compression method
-    crc32 = zlib.crc32
-except ImportError:
-    zlib = None
-    crc32 = binascii.crc32
-
-try:
-    import bz2 # We may need its compression method
-except ImportError:
-    bz2 = None
-
-__all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
-           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
-
-class BadZipfile(Exception):
-    pass
-
-
-class LargeZipFile(Exception):
-    """
-    Raised when writing a zipfile, the zipfile requires ZIP64 extensions
-    and those extensions are disabled.
-    """
-
-error = BadZipfile      # The exception raised by this module
-
-ZIP64_LIMIT = (1 << 31) - 1
-ZIP_FILECOUNT_LIMIT = 1 << 16
-ZIP_MAX_COMMENT = (1 << 16) - 1
-
-# constants for Zip file compression methods
-ZIP_STORED = 0
-ZIP_DEFLATED = 8
-ZIP_BZIP2 = 12
-# Other ZIP compression methods not supported
-
-# Below are some formats and associated data for reading/writing headers using
-# the struct module.  The names and structures of headers/records are those used
-# in the PKWARE description of the ZIP file format:
-#     http://www.pkware.com/documents/casestudies/APPNOTE.TXT
-# (URL valid as of January 2008)
-
-# The "end of central directory" structure, magic number, size, and indices
-# (section V.I in the format document)
-structEndArchive = "<4s4H2LH"
-stringEndArchive = "PK\005\006"
-sizeEndCentDir = struct.calcsize(structEndArchive)
-
-_ECD_SIGNATURE = 0
-_ECD_DISK_NUMBER = 1
-_ECD_DISK_START = 2
-_ECD_ENTRIES_THIS_DISK = 3
-_ECD_ENTRIES_TOTAL = 4
-_ECD_SIZE = 5
-_ECD_OFFSET = 6
-_ECD_COMMENT_SIZE = 7
-# These last two indices are not part of the structure as defined in the
-# spec, but they are used internally by this module as a convenience
-_ECD_COMMENT = 8
-_ECD_LOCATION = 9
-
-# The "central directory" structure, magic number, size, and indices
-# of entries in the structure (section V.F in the format document)
-structCentralDir = "<4s4B4HL2L5H2L"
-stringCentralDir = "PK\001\002"
-sizeCentralDir = struct.calcsize(structCentralDir)
-
-# indexes of entries in the central directory structure
-_CD_SIGNATURE = 0
-_CD_CREATE_VERSION = 1
-_CD_CREATE_SYSTEM = 2
-_CD_EXTRACT_VERSION = 3
-_CD_EXTRACT_SYSTEM = 4
-_CD_FLAG_BITS = 5
-_CD_COMPRESS_TYPE = 6
-_CD_TIME = 7
-_CD_DATE = 8
-_CD_CRC = 9
-_CD_COMPRESSED_SIZE = 10
-_CD_UNCOMPRESSED_SIZE = 11
-_CD_FILENAME_LENGTH = 12
-_CD_EXTRA_FIELD_LENGTH = 13
-_CD_COMMENT_LENGTH = 14
-_CD_DISK_NUMBER_START = 15
-_CD_INTERNAL_FILE_ATTRIBUTES = 16
-_CD_EXTERNAL_FILE_ATTRIBUTES = 17
-_CD_LOCAL_HEADER_OFFSET = 18
-
-# The "local file header" structure, magic number, size, and indices
-# (section V.A in the format document)
-structFileHeader = "<4s2B4HL2L2H"
-stringFileHeader = "PK\003\004"
-sizeFileHeader = struct.calcsize(structFileHeader)
-
-_FH_SIGNATURE = 0
-_FH_EXTRACT_VERSION = 1
-_FH_EXTRACT_SYSTEM = 2
-_FH_GENERAL_PURPOSE_FLAG_BITS = 3
-_FH_COMPRESSION_METHOD = 4
-_FH_LAST_MOD_TIME = 5
-_FH_LAST_MOD_DATE = 6
-_FH_CRC = 7
-_FH_COMPRESSED_SIZE = 8
-_FH_UNCOMPRESSED_SIZE = 9
-_FH_FILENAME_LENGTH = 10
-_FH_EXTRA_FIELD_LENGTH = 11
-
-# The "Zip64 end of central directory locator" structure, magic number, and size
-structEndArchive64Locator = "<4sLQL"
-stringEndArchive64Locator = "PK\x06\x07"
-sizeEndCentDir64Locator = struct.calcsize(structEndArchive64Locator)
-
-# The "Zip64 end of central directory" record, magic number, size, and indices
-# (section V.G in the format document)
-structEndArchive64 = "<4sQ2H2L4Q"
-stringEndArchive64 = "PK\x06\x06"
-sizeEndCentDir64 = struct.calcsize(structEndArchive64)
-
-_CD64_SIGNATURE = 0
-_CD64_DIRECTORY_RECSIZE = 1
-_CD64_CREATE_VERSION = 2
-_CD64_EXTRACT_VERSION = 3
-_CD64_DISK_NUMBER = 4
-_CD64_DISK_NUMBER_START = 5
-_CD64_NUMBER_ENTRIES_THIS_DISK = 6
-_CD64_NUMBER_ENTRIES_TOTAL = 7
-_CD64_DIRECTORY_SIZE = 8
-_CD64_OFFSET_START_CENTDIR = 9
-
-def is_zipfile(filename):
-    """Quickly see if file is a ZIP file by checking the magic number."""
-    try:
-        fpin = open(filename, "rb")
-        endrec = _EndRecData(fpin)
-        fpin.close()
-        if endrec:
-            return True                 # file has correct magic number
-    except IOError:
-        pass
-    return False
-
-def _EndRecData64(fpin, offset, endrec):
-    """
-    Read the ZIP64 end-of-archive records and use that to update endrec
-    """
-    fpin.seek(offset - sizeEndCentDir64Locator, 2)
-    data = fpin.read(sizeEndCentDir64Locator)
-    sig, diskno, reloff, disks = struct.unpack(structEndArchive64Locator, data)
-    if sig != stringEndArchive64Locator:
-        return endrec
-
-    if diskno != 0 or disks != 1:
-        raise BadZipfile("zipfiles that span multiple disks are not supported")
-
-    # Assume no 'zip64 extensible data'
-    fpin.seek(offset - sizeEndCentDir64Locator - sizeEndCentDir64, 2)
-    data = fpin.read(sizeEndCentDir64)
-    sig, sz, create_version, read_version, disk_num, disk_dir, \
-            dircount, dircount2, dirsize, diroffset = \
-            struct.unpack(structEndArchive64, data)
-    if sig != stringEndArchive64:
-        return endrec
-
-    # Update the original endrec using data from the ZIP64 record
-    endrec[_ECD_SIGNATURE] = sig
-    endrec[_ECD_DISK_NUMBER] = disk_num
-    endrec[_ECD_DISK_START] = disk_dir
-    endrec[_ECD_ENTRIES_THIS_DISK] = dircount
-    endrec[_ECD_ENTRIES_TOTAL] = dircount2
-    endrec[_ECD_SIZE] = dirsize
-    endrec[_ECD_OFFSET] = diroffset
-    return endrec
-
-
-def _EndRecData(fpin):
-    """Return data from the "End of Central Directory" record, or None.
-
-    The data is a list of the nine items in the ZIP "End of central dir"
-    record followed by a tenth item, the file seek offset of this record."""
-
-    # Determine file size
-    fpin.seek(0, 2)
-    filesize = fpin.tell()
-
-    # Check to see if this is ZIP file with no archive comment (the
-    # "end of central directory" structure should be the last item in the
-    # file if this is the case).
-    try:
-        fpin.seek(-sizeEndCentDir, 2)
-    except IOError:
-        return None
-    data = fpin.read()
-    if data[0:4] == stringEndArchive and data[-2:] == "\000\000":
-        # the signature is correct and there's no comment, unpack structure
-        endrec = struct.unpack(structEndArchive, data)
-        endrec=list(endrec)
-
-        # Append a blank comment and record start offset
-        endrec.append("")
-        endrec.append(filesize - sizeEndCentDir)
-
-        # Try to read the "Zip64 end of central directory" structure
-        return _EndRecData64(fpin, -sizeEndCentDir, endrec)
-
-    # Either this is not a ZIP file, or it is a ZIP file with an archive
-    # comment.  Search the end of the file for the "end of central directory"
-    # record signature. The comment is the last item in the ZIP file and may be
-    # up to 64K long.  It is assumed that the "end of central directory" magic
-    # number does not appear in the comment.
-    maxCommentStart = max(filesize - (1 << 16) - sizeEndCentDir, 0)
-    fpin.seek(maxCommentStart, 0)
-    data = fpin.read()
-    start = data.rfind(stringEndArchive)
-    if start >= 0:
-        # found the magic number; attempt to unpack and interpret
-        recData = data[start:start+sizeEndCentDir]
-        endrec = list(struct.unpack(structEndArchive, recData))
-        comment = data[start+sizeEndCentDir:]
-        # check that comment length is correct
-        if endrec[_ECD_COMMENT_SIZE] == len(comment):
-            # Append the archive comment and start offset
-            endrec.append(comment)
-            endrec.append(maxCommentStart + start)
-
-            # Try to read the "Zip64 end of central directory" structure
-            return _EndRecData64(fpin, maxCommentStart + start - filesize,
-                                 endrec)
-
-    # Unable to find a valid end of central directory structure
-    return
-
-
-class ZipInfo (object):
-    """Class with attributes describing each file in the ZIP archive."""
-
-    __slots__ = (
-            'orig_filename',
-            'filename',
-            'date_time',
-            'compress_type',
-            'comment',
-            'extra',
-            'create_system',
-            'create_version',
-            'extract_version',
-            'reserved',
-            'flag_bits',
-            'volume',
-            'internal_attr',
-            'external_attr',
-            'header_offset',
-            'CRC',
-            'compress_size',
-            'file_size',
-            '_raw_time',
-        )
-
-    def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)):
-        self.orig_filename = filename   # Original file name in archive
-
-        # Terminate the file name at the first null byte.  Null bytes in file
-        # names are used as tricks by viruses in archives.
-        null_byte = filename.find(chr(0))
-        if null_byte >= 0:
-            filename = filename[0:null_byte]
-        # This is used to ensure paths in generated ZIP files always use
-        # forward slashes as the directory separator, as required by the
-        # ZIP format specification.
-        if os.sep != "/" and os.sep in filename:
-            filename = filename.replace(os.sep, "/")
-
-        self.filename = filename        # Normalized file name
-        self.date_time = date_time      # year, month, day, hour, min, sec
-        # Standard values:
-        self.compress_type = ZIP_STORED # Type of compression for the file
-        self.comment = ""               # Comment for each file
-        self.extra = ""                 # ZIP extra data
-        if sys.platform == 'win32':
-            self.create_system = 0          # System which created ZIP archive
-        else:
-            # Assume everything else is unix-y
-            self.create_system = 3          # System which created ZIP archive
-        self.create_version = 20        # Version which created ZIP archive
-        self.extract_version = 20       # Version needed to extract archive
-        self.reserved = 0               # Must be zero
-        self.flag_bits = 0              # ZIP flag bits
-        self.volume = 0                 # Volume number of file header
-        self.internal_attr = 0          # Internal attributes
-        self.external_attr = 0          # External file attributes
-        # Other attributes are set by class ZipFile:
-        # header_offset         Byte offset to the file header
-        # CRC                   CRC-32 of the uncompressed file
-        # compress_size         Size of the compressed file
-        # file_size             Size of the uncompressed file
-
-    def FileHeader(self):
-        """Return the per-file header as a string."""
-        dt = self.date_time
-        dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
-        dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
-        if self.flag_bits & 0x08:
-            # Set these to zero because we write them after the file data
-            CRC = compress_size = file_size = 0
-        else:
-            CRC = self.CRC
-            compress_size = self.compress_size
-            file_size = self.file_size
-
-        extra = self.extra
-
-        if file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT:
-            # File is larger than what fits into a 4 byte integer,
-            # fall back to the ZIP64 extension
-            fmt = '<HHQQ'
-            extra = extra + struct.pack(fmt,
-                    1, struct.calcsize(fmt)-4, file_size, compress_size)
-            file_size = 0xffffffff
-            compress_size = 0xffffffff
-            self.extract_version = max(45, self.extract_version)
-            self.create_version = max(45, self.extract_version)
-
-        filename, flag_bits = self._encodeFilenameFlags()
-        header = struct.pack(structFileHeader, stringFileHeader,
-                 self.extract_version, self.reserved, flag_bits,
-                 self.compress_type, dostime, dosdate, CRC,
-                 compress_size, file_size,
-                 len(filename), len(extra))
-        return header + filename + extra
-
-    def _encodeFilenameFlags(self):
-        if isinstance(self.filename, unicode):
-            try:
-                return self.filename.encode('ascii'), self.flag_bits
-            except UnicodeEncodeError:
-                return self.filename.encode('utf-8'), self.flag_bits | 0x800
-        else:
-            return self.filename, self.flag_bits
-
-    def _decodeFilename(self):
-        if self.flag_bits & 0x800:
-            return self.filename.decode('utf-8')
-        else:
-            return self.filename
-
-    def _decodeExtra(self):
-        # Try to decode the extra field.
-        extra = self.extra
-        unpack = struct.unpack
-        while extra:
-            tp, ln = unpack('<HH', extra[:4])
-            if tp == 1:
-                if ln >= 24:
-                    counts = unpack('<QQQ', extra[4:28])
-                elif ln == 16:
-                    counts = unpack('<QQ', extra[4:20])
-                elif ln == 8:
-                    counts = unpack('<Q', extra[4:12])
-                elif ln == 0:
-                    counts = ()
-                else:
-                    raise RuntimeError, "Corrupt extra field %s"%(ln,)
-
-                idx = 0
-
-                # ZIP64 extension (large files and/or large archives)
-                if self.file_size in (0xffffffffffffffffL, 0xffffffffL):
-                    self.file_size = counts[idx]
-                    idx += 1
-
-                if self.compress_size == 0xFFFFFFFFL:
-                    self.compress_size = counts[idx]
-                    idx += 1
-
-                if self.header_offset == 0xffffffffL:
-                    old = self.header_offset
-                    self.header_offset = counts[idx]
-                    idx+=1
-
-            extra = extra[ln+4:]
-
-
-class _ZipDecrypter:
-    """Class to handle decryption of files stored within a ZIP archive.
-
-    ZIP supports a password-based form of encryption. Even though known
-    plaintext attacks have been found against it, it is still useful
-    to be able to get data out of such a file.
-
-    Usage:
-        zd = _ZipDecrypter(mypwd)
-        plain_char = zd(cypher_char)
-        plain_text = map(zd, cypher_text)
-    """
-
-    def _GenerateCRCTable():
-        """Generate a CRC-32 table.
-
-        ZIP encryption uses the CRC32 one-byte primitive for scrambling some
-        internal keys. We noticed that a direct implementation is faster than
-        relying on binascii.crc32().
-        """
-        poly = 0xedb88320
-        table = [0] * 256
-        for i in range(256):
-            crc = i
-            for j in range(8):
-                if crc & 1:
-                    crc = ((crc >> 1) & 0x7FFFFFFF) ^ poly
-                else:
-                    crc = ((crc >> 1) & 0x7FFFFFFF)
-            table[i] = crc
-        return table
-    crctable = _GenerateCRCTable()
-
-    def _crc32(self, ch, crc):
-        """Compute the CRC32 primitive on one byte."""
-        return ((crc >> 8) & 0xffffff) ^ self.crctable[(crc ^ ord(ch)) & 0xff]
-
-    def __init__(self, pwd):
-        self.key0 = 305419896
-        self.key1 = 591751049
-        self.key2 = 878082192
-        for p in pwd:
-            self._UpdateKeys(p)
-
-    def _UpdateKeys(self, c):
-        self.key0 = self._crc32(c, self.key0)
-        self.key1 = (self.key1 + (self.key0 & 255)) & 4294967295
-        self.key1 = (self.key1 * 134775813 + 1) & 4294967295
-        self.key2 = self._crc32(chr((self.key1 >> 24) & 255), self.key2)
-
-    def __call__(self, c):
-        """Decrypt a single character."""
-        c = ord(c)
-        k = self.key2 | 2
-        c = c ^ (((k * (k^1)) >> 8) & 255)
-        c = chr(c)
-        self._UpdateKeys(c)
-        return c
-
-class ZipExtFile:
-    """File-like object for reading an archive member.
-       Is returned by ZipFile.open().
-    """
-
-    def __init__(self, fileobj, zipinfo, decrypt=None):
-        self.fileobj = fileobj
-        self.decrypter = decrypt
-        self.bytes_read = 0L
-        self.rawbuffer = ''
-        self.readbuffer = ''
-        self.linebuffer = ''
-        self.eof = False
-        self.univ_newlines = False
-        self.nlSeps = ("\n", )
-        self.lastdiscard = ''
-
-        self.compress_type = zipinfo.compress_type
-        self.compress_size = zipinfo.compress_size
-
-        self.closed  = False
-        self.mode    = "r"
-        self.name = zipinfo.filename
-
-        # read from compressed files in 64k blocks
-        self.compreadsize = 64*1024
-        if self.compress_type == ZIP_DEFLATED:
-            self.dc = zlib.decompressobj(-15)
-        elif self.compress_type == ZIP_BZIP2:
-            self.dc = bz2.BZ2Decompressor()
-            self.compreadsize = 900000
-
-    def set_univ_newlines(self, univ_newlines):
-        self.univ_newlines = univ_newlines
-
-        # pick line separator char(s) based on universal newlines flag
-        self.nlSeps = ("\n", )
-        if self.univ_newlines:
-            self.nlSeps = ("\r\n", "\r", "\n")
-
-    def __iter__(self):
-        return self
-
-    def next(self):
-        nextline = self.readline()
-        if not nextline:
-            raise StopIteration()
-
-        return nextline
-
-    def close(self):
-        self.closed = True
-
-    def _checkfornewline(self):
-        nl, nllen = -1, -1
-        if self.linebuffer:
-            # ugly check for cases where half of an \r\n pair was
-            # read on the last pass, and the \r was discarded.  In this
-            # case we just throw away the \n at the start of the buffer.
-            if (self.lastdiscard, self.linebuffer[0]) == ('\r','\n'):
-                self.linebuffer = self.linebuffer[1:]
-
-            for sep in self.nlSeps:
-                nl = self.linebuffer.find(sep)
-                if nl >= 0:
-                    nllen = len(sep)
-                    return nl, nllen
-
-        return nl, nllen
-
-    def readline(self, size = -1):
-        """Read a line with approx. size. If size is negative,
-           read a whole line.
-        """
-        if size < 0:
-            size = sys.maxint
-        elif size == 0:
-            return ''
-
-        # check for a newline already in buffer
-        nl, nllen = self._checkfornewline()
-
-        if nl >= 0:
-            # the next line was already in the buffer
-            nl = min(nl, size)
-        else:
-            # no line break in buffer - try to read more
-            size -= len(self.linebuffer)
-            while nl < 0 and size > 0:
-                buf = self.read(min(size, 100))
-                if not buf:
-                    break
-                self.linebuffer += buf
-                size -= len(buf)
-
-                # check for a newline in buffer
-                nl, nllen = self._checkfornewline()
-
-            # we either ran out of bytes in the file, or
-            # met the specified size limit without finding a newline,
-            # so return current buffer
-            if nl < 0:
-                s = self.linebuffer
-                self.linebuffer = ''
-                return s
-
-        buf = self.linebuffer[:nl]
-        self.lastdiscard = self.linebuffer[nl:nl + nllen]
-        self.linebuffer = self.linebuffer[nl + nllen:]
-
-        # line is always returned with \n as newline char (except possibly
-        # for a final incomplete line in the file, which is handled above).
-        return buf + "\n"
-
-    def readlines(self, sizehint = -1):
-        """Return a list with all (following) lines. The sizehint parameter
-        is ignored in this implementation.
-        """
-        result = []
-        while True:
-            line = self.readline()
-            if not line: break
-            result.append(line)
-        return result
-
-    def read(self, size = None):
-        # act like file() obj and return empty string if size is 0
-        if size == 0:
-            return ''
-
-        # determine read size
-        bytesToRead = self.compress_size - self.bytes_read
-
-        # adjust read size for encrypted files since the first 12 bytes
-        # are for the encryption/password information
-        if self.decrypter is not None:
-            bytesToRead -= 12
-
-        if size is not None and size >= 0:
-            if self.compress_type == ZIP_STORED:
-                lr = len(self.readbuffer)
-                bytesToRead = min(bytesToRead, size - lr)
-            else:
-                if len(self.readbuffer) > size:
-                    # the user has requested fewer bytes than we've already
-                    # pulled through the decompressor; don't read any more
-                    bytesToRead = 0
-                else:
-                    # user will use up the buffer, so read some more
-                    lr = len(self.rawbuffer)
-                    bytesToRead = min(bytesToRead, self.compreadsize - lr)
-
-        # avoid reading past end of file contents
-        if bytesToRead + self.bytes_read > self.compress_size:
-            bytesToRead = self.compress_size - self.bytes_read
-
-        # try to read from file (if necessary)
-        if bytesToRead > 0:
-            bytes = self.fileobj.read(bytesToRead)
-            self.bytes_read += len(bytes)
-            self.rawbuffer += bytes
-
-            # handle contents of raw buffer
-            if self.rawbuffer:
-                newdata = self.rawbuffer
-                self.rawbuffer = ''
-
-                # decrypt new data if we were given an object to handle that
-                if newdata and self.decrypter is not None:
-                    newdata = ''.join(map(self.decrypter, newdata))
-
-                # decompress newly read data if necessary
-                if newdata and self.compress_type != ZIP_STORED:
-                    newdata = self.dc.decompress(newdata)
-                    self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
-                    if self.eof and len(self.rawbuffer) == 0:
-                        # we're out of raw bytes (both from the file and
-                        # the local buffer); flush just to make sure the
-                        # decompressor is done
-                        try:
-                            newdata += self.dc.flush()
-                        except AttributeError:
-                            pass
-                        # prevent decompressor from being used again
-                        self.dc = None
-
-                self.readbuffer += newdata
-
-
-        # return what the user asked for
-        if size is None or len(self.readbuffer) <= size:
-            bytes = self.readbuffer
-            self.readbuffer = ''
-        else:
-            bytes = self.readbuffer[:size]
-            self.readbuffer = self.readbuffer[size:]
-
-        return bytes
-
-
-class ZipFile:
-    """ Class with methods to open, read, write, close, list zip files.
-
-    z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=False)
-
-    file: Either the path to the file, or a file-like object.
-          If it is a path, the file will be opened and closed by ZipFile.
-    mode: The mode can be either read "r", write "w" or append "a".
-    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
-                 or ZIP_BZIP2 (requires bz2).
-    allowZip64: if True ZipFile will create files with ZIP64 extensions when
-                needed, otherwise it will raise an exception when this would
-                be necessary.
-
-    """
-
-    fp = None                   # Set here since __del__ checks it
-
-    def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=False):
-        """Open the ZIP file with mode read "r", write "w" or append "a"."""
-        if mode not in ("r", "w", "a"):
-            raise RuntimeError('ZipFile() requires mode "r", "w", or "a"')
-
-        if compression == ZIP_STORED:
-            pass
-        elif compression == ZIP_DEFLATED:
-            if not zlib:
-                raise RuntimeError,\
-                      "Compression requires the (missing) zlib module"
-        elif compression == ZIP_BZIP2:
-            if not bz2:
-                raise RuntimeError,\
-                      "Compression requires the (missing) bz2 module"
-        else:
-            raise RuntimeError, "That compression method is not supported"
-
-        self._allowZip64 = allowZip64
-        self._didModify = False
-        self.debug = 0  # Level of printing: 0 through 3
-        self.NameToInfo = {}    # Find file info given name
-        self.filelist = []      # List of ZipInfo instances for archive
-        self.compression = compression  # Method of compression
-        self.mode = key = mode.replace('b', '')[0]
-        self.pwd = None
-        self.comment = ''
-
-        # Check if we were passed a file-like object
-        if isinstance(file, basestring):
-            self._filePassed = 0
-            self.filename = file
-            modeDict = {'r' : 'rb', 'w': 'wb', 'a' : 'r+b'}
-            try:
-                self.fp = open(file, modeDict[mode])
-            except IOError:
-                if mode == 'a':
-                    mode = key = 'w'
-                    self.fp = open(file, modeDict[mode])
-                else:
-                    raise
-        else:
-            self._filePassed = 1
-            self.fp = file
-            self.filename = getattr(file, 'name', None)
-
-        if key == 'r':
-            self._GetContents()
-        elif key == 'w':
-            pass
-        elif key == 'a':
-            try:                        # See if file is a zip file
-                self._RealGetContents()
-                # seek to start of directory and overwrite
-                self.fp.seek(self.start_dir, 0)
-            except BadZipfile:          # file is not a zip file, just append
-                self.fp.seek(0, 2)
-        else:
-            if not self._filePassed:
-                self.fp.close()
-                self.fp = None
-            raise RuntimeError, 'Mode must be "r", "w" or "a"'
-
-    def _GetContents(self):
-        """Read the directory, making sure we close the file if the format
-        is bad."""
-        try:
-            self._RealGetContents()
-        except BadZipfile:
-            if not self._filePassed:
-                self.fp.close()
-                self.fp = None
-            raise
-
-    def _RealGetContents(self):
-        """Read in the table of contents for the ZIP file."""
-        fp = self.fp
-        endrec = _EndRecData(fp)
-        if not endrec:
-            raise BadZipfile, "File is not a zip file"
-        if self.debug > 1:
-            print endrec
-        size_cd = endrec[_ECD_SIZE]             # bytes in central directory
-        offset_cd = endrec[_ECD_OFFSET]         # offset of central directory
-        self.comment = endrec[_ECD_COMMENT]     # archive comment
-
-        # "concat" is zero, unless zip was concatenated to another file
-        concat = endrec[_ECD_LOCATION] - size_cd - offset_cd
-        if endrec[_ECD_SIGNATURE] == stringEndArchive64:
-            # If Zip64 extension structures are present, account for them
-            concat -= (sizeEndCentDir64 + sizeEndCentDir64Locator)
-
-        if self.debug > 2:
-            inferred = concat + offset_cd
-            print "given, inferred, offset", offset_cd, inferred, concat
-        # self.start_dir:  Position of start of central directory
-        self.start_dir = offset_cd + concat
-        fp.seek(self.start_dir, 0)
-        data = fp.read(size_cd)
-        fp = cStringIO.StringIO(data)
-        total = 0
-        while total < size_cd:
-            centdir = fp.read(sizeCentralDir)
-            if centdir[0:4] != stringCentralDir:
-                raise BadZipfile, "Bad magic number for central directory"
-            centdir = struct.unpack(structCentralDir, centdir)
-            if self.debug > 2:
-                print centdir
-            filename = fp.read(centdir[_CD_FILENAME_LENGTH])
-            # Create ZipInfo instance to store file information
-            x = ZipInfo(filename)
-            x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
-            x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
-            x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET]
-            (x.create_version, x.create_system, x.extract_version, x.reserved,
-                x.flag_bits, x.compress_type, t, d,
-                x.CRC, x.compress_size, x.file_size) = centdir[1:12]
-            x.volume, x.internal_attr, x.external_attr = centdir[15:18]
-            # Convert date/time code to (year, month, day, hour, min, sec)
-            x._raw_time = t
-            x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
-                                     t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
-
-            x._decodeExtra()
-            x.header_offset = x.header_offset + concat
-            x.filename = x._decodeFilename()
-            self.filelist.append(x)
-            self.NameToInfo[x.filename] = x
-
-            # update total bytes read from central directory
-            total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH]
-                     + centdir[_CD_EXTRA_FIELD_LENGTH]
-                     + centdir[_CD_COMMENT_LENGTH])
-
-            if self.debug > 2:
-                print "total", total
-
-
-    def namelist(self):
-        """Return a list of file names in the archive."""
-        l = []
-        for data in self.filelist:
-            l.append(data.filename)
-        return l
-
-    def infolist(self):
-        """Return a list of class ZipInfo instances for files in the
-        archive."""
-        return self.filelist
-
-    def printdir(self):
-        """Print a table of contents for the zip file."""
-        print "%-46s %19s %12s" % ("File Name", "Modified    ", "Size")
-        for zinfo in self.filelist:
-            date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]
-            print "%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size)
-
-    def testzip(self):
-        """Read all the files and check the CRC."""
-        chunk_size = 2 ** 20
-        for zinfo in self.filelist:
-            try:
-                # Read by chunks, to avoid an OverflowError or a
-                # MemoryError with very large embedded files.
-                f = self.open(zinfo.filename, "r")
-                while f.read(chunk_size):     # Check CRC-32
-                    pass
-            except BadZipfile:
-                return zinfo.filename
-
-    def getinfo(self, name):
-        """Return the instance of ZipInfo given 'name'."""
-        info = self.NameToInfo.get(name)
-        if info is None:
-            raise KeyError(
-                'There is no item named %r in the archive' % name)
-
-        return info
-
-    def setpassword(self, pwd):
-        """Set default password for encrypted files."""
-        self.pwd = pwd
-
-    def read(self, name, pwd=None):
-        """Return file bytes (as a string) for name."""
-        return self.open(name, "r", pwd).read()
-
-    def open(self, name, mode="r", pwd=None):
-        """Return file-like object for 'name'."""
-        if mode not in ("r", "U", "rU"):
-            raise RuntimeError, 'open() requires mode "r", "U", or "rU"'
-        if not self.fp:
-            raise RuntimeError, \
-                  "Attempt to read ZIP archive that was already closed"
-
-        # Only open a new file for instances where we were not
-        # given a file object in the constructor
-        if self._filePassed:
-            zef_file = self.fp
-        else:
-            zef_file = open(self.filename, 'rb')
-
-        # Make sure we have an info object
-        if isinstance(name, ZipInfo):
-            # 'name' is already an info object
-            zinfo = name
-        else:
-            # Get info object for name
-            zinfo = self.getinfo(name)
-
-        zef_file.seek(zinfo.header_offset, 0)
-
-        # Skip the file header:
-        fheader = zef_file.read(sizeFileHeader)
-        if fheader[0:4] != stringFileHeader:
-            raise BadZipfile, "Bad magic number for file header"
-
-        fheader = struct.unpack(structFileHeader, fheader)
-        fname = zef_file.read(fheader[_FH_FILENAME_LENGTH])
-        if fheader[_FH_EXTRA_FIELD_LENGTH]:
-            zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
-
-        if fname != zinfo.orig_filename:
-            raise BadZipfile, \
-                      'File name in directory "%s" and header "%s" differ.' % (
-                          zinfo.orig_filename, fname)
-
-        # check for encrypted flag & handle password
-        is_encrypted = zinfo.flag_bits & 0x1
-        zd = None
-        if is_encrypted:
-            if not pwd:
-                pwd = self.pwd
-            if not pwd:
-                raise RuntimeError, "File %s is encrypted, " \
-                      "password required for extraction" % name
-
-            zd = _ZipDecrypter(pwd)
-            # The first 12 bytes in the cypher stream is an encryption header
-            #  used to strengthen the algorithm. The first 11 bytes are
-            #  completely random, while the 12th contains the MSB of the CRC,
-            #  or the MSB of the file time depending on the header type
-            #  and is used to check the correctness of the password.
-            bytes = zef_file.read(12)
-            h = map(zd, bytes[0:12])
-            if zinfo.flag_bits & 0x8:
-                # compare against the file type from extended local headers
-                check_byte = (zinfo._raw_time >> 8) & 0xff
-            else:
-                # compare against the CRC otherwise
-                check_byte = (zinfo.CRC >> 24) & 0xff
-            if ord(h[11]) != check_byte:
-                raise RuntimeError("Bad password for file", name)
-
-        # build and return a ZipExtFile
-        if zd is None:
-            zef = ZipExtFile(zef_file, zinfo)
-        else:
-            zef = ZipExtFile(zef_file, zinfo, zd)
-
-        # set universal newlines on ZipExtFile if necessary
-        if "U" in mode:
-            zef.set_univ_newlines(True)
-        return zef
-
-    def extract(self, member, path=None, pwd=None):
-        """Extract a member from the archive to the current working directory,
-           using its full name. Its file information is extracted as accurately
-           as possible. `member' may be a filename or a ZipInfo object. You can
-           specify a different directory using `path'.
-        """
-        if not isinstance(member, ZipInfo):
-            member = self.getinfo(member)
-
-        if path is None:
-            path = os.getcwd()
-
-        return self._extract_member(member, path, pwd)
-
-    def extractall(self, path=None, members=None, pwd=None):
-        """Extract all members from the archive to the current working
-           directory. `path' specifies a different directory to extract to.
-           `members' is optional and must be a subset of the list returned
-           by namelist().
-        """
-        if members is None:
-            members = self.namelist()
-
-        for zipinfo in members:
-            self.extract(zipinfo, path, pwd)
-
-    def _extract_member(self, member, targetpath, pwd):
-        """Extract the ZipInfo object 'member' to a physical
-           file on the path targetpath.
-        """
-        # build the destination pathname, replacing
-        # forward slashes to platform specific separators.
-        # Strip trailing path separator, unless it represents the root.
-        if (targetpath[-1:] in (os.path.sep, os.path.altsep)
-            and len(os.path.splitdrive(targetpath)[1]) > 1):
-            targetpath = targetpath[:-1]
-
-        # don't include leading "/" from file name if present
-        if member.filename[0] == '/':
-            targetpath = os.path.join(targetpath, member.filename[1:])
-        else:
-            targetpath = os.path.join(targetpath, member.filename)
-
-        targetpath = os.path.normpath(targetpath)
-
-        # Create all upper directories if necessary.
-        upperdirs = os.path.dirname(targetpath)
-        if upperdirs and not os.path.exists(upperdirs):
-            os.makedirs(upperdirs)
-
-        if member.filename[-1] == '/':
-            if not os.path.isdir(targetpath):
-                os.mkdir(targetpath)
-            return targetpath
-
-        source = self.open(member, pwd=pwd)
-        target = file(targetpath, "wb")
-        shutil.copyfileobj(source, target)
-        source.close()
-        target.close()
-
-        return targetpath
-
-    def _writecheck(self, zinfo):
-        """Check for errors before writing a file to the archive."""
-        if zinfo.filename in self.NameToInfo:
-            if self.debug:      # Warning for duplicate names
-                print "Duplicate name:", zinfo.filename
-        if self.mode not in ("w", "a"):
-            raise RuntimeError, 'write() requires mode "w" or "a"'
-        if not self.fp:
-            raise RuntimeError, \
-                  "Attempt to write ZIP archive that was already closed"
-        if zinfo.compress_type == ZIP_DEFLATED and not zlib:
-            raise RuntimeError, \
-                  "Compression requires the (missing) zlib module"
-        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
-            raise RuntimeError, \
-                  "Compression requires the (missing) bz2 module"
-        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
-            raise RuntimeError, \
-                  "That compression method is not supported"
-        if zinfo.file_size > ZIP64_LIMIT:
-            if not self._allowZip64:
-                raise LargeZipFile("Filesize would require ZIP64 extensions")
-        if zinfo.header_offset > ZIP64_LIMIT:
-            if not self._allowZip64:
-                raise LargeZipFile("Zipfile size would require ZIP64 extensions")
-
-    def write(self, filename, arcname=None, compress_type=None):
-        """Put the bytes from filename into the archive under the name
-        arcname."""
-        if not self.fp:
-            raise RuntimeError(
-                  "Attempt to write to ZIP archive that was already closed")
-
-        st = os.stat(filename)
-        isdir = stat.S_ISDIR(st.st_mode)
-        mtime = time.localtime(st.st_mtime)
-        date_time = mtime[0:6]
-        # Create ZipInfo instance to store file information
-        if arcname is None:
-            arcname = filename
-        arcname = os.path.normpath(os.path.splitdrive(arcname)[1])
-        while arcname[0] in (os.sep, os.altsep):
-            arcname = arcname[1:]
-        if isdir:
-            arcname += '/'
-        zinfo = ZipInfo(arcname, date_time)
-        zinfo.external_attr = (st[0] & 0xFFFF) << 16L      # Unix attributes
-        if compress_type is None:
-            zinfo.compress_type = self.compression
-        else:
-            zinfo.compress_type = compress_type
-
-        zinfo.file_size = st.st_size
-        zinfo.flag_bits = 0x00
-        zinfo.header_offset = self.fp.tell()    # Start of header bytes
-
-        self._writecheck(zinfo)
-        self._didModify = True
-
-        if isdir:
-            zinfo.file_size = 0
-            zinfo.compress_size = 0
-            zinfo.CRC = 0
-            self.filelist.append(zinfo)
-            self.NameToInfo[zinfo.filename] = zinfo
-            self.fp.write(zinfo.FileHeader())
-            return
-
-        fp = open(filename, "rb")
-        # Must overwrite CRC and sizes with correct data later
-        zinfo.CRC = CRC = 0
-        zinfo.compress_size = compress_size = 0
-        zinfo.file_size = file_size = 0
-        self.fp.write(zinfo.FileHeader())
-        if zinfo.compress_type == ZIP_DEFLATED:
-            cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                 zlib.DEFLATED, -15)
-        elif zinfo.compress_type == ZIP_BZIP2:
-            cmpr = bz2.BZ2Compressor()
-        else:
-            cmpr = None
-        while 1:
-            buf = fp.read(1024 * 8)
-            if not buf:
-                break
-            file_size = file_size + len(buf)
-            CRC = crc32(buf, CRC) & 0xffffffff
-            if cmpr:
-                buf = cmpr.compress(buf)
-                compress_size = compress_size + len(buf)
-            self.fp.write(buf)
-        fp.close()
-        if cmpr:
-            buf = cmpr.flush()
-            compress_size = compress_size + len(buf)
-            self.fp.write(buf)
-            zinfo.compress_size = compress_size
-        else:
-            zinfo.compress_size = file_size
-        zinfo.CRC = CRC
-        zinfo.file_size = file_size
-        # Seek backwards and write CRC and file sizes
-        position = self.fp.tell()       # Preserve current position in file
-        self.fp.seek(zinfo.header_offset + 14, 0)
-        self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
-              zinfo.file_size))
-        self.fp.seek(position, 0)
-        self.filelist.append(zinfo)
-        self.NameToInfo[zinfo.filename] = zinfo
-
-    def writestr(self, zinfo_or_arcname, bytes):
-        """Write a file into the archive.  The contents is the string
-        'bytes'.  'zinfo_or_arcname' is either a ZipInfo instance or
-        the name of the file in the archive."""
-        if not isinstance(zinfo_or_arcname, ZipInfo):
-            zinfo = ZipInfo(filename=zinfo_or_arcname,
-                            date_time=time.localtime(time.time())[:6])
-            zinfo.compress_type = self.compression
-            zinfo.external_attr = 0600 << 16
-        else:
-            zinfo = zinfo_or_arcname
-
-        if not self.fp:
-            raise RuntimeError(
-                  "Attempt to write to ZIP archive that was already closed")
-
-        zinfo.file_size = len(bytes)            # Uncompressed size
-        zinfo.header_offset = self.fp.tell()    # Start of header bytes
-        self._writecheck(zinfo)
-        self._didModify = True
-        zinfo.CRC = crc32(bytes) & 0xffffffff       # CRC-32 checksum
-        if zinfo.compress_type == ZIP_DEFLATED:
-            co = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                 zlib.DEFLATED, -15)
-            bytes = co.compress(bytes) + co.flush()
-            zinfo.compress_size = len(bytes)    # Compressed size
-        elif zinfo.compress_type == ZIP_BZIP2:
-            co = bz2.BZ2Compressor()
-            bytes = co.compress(bytes) + co.flush()
-            zinfo.compress_size = len(bytes)    # Compressed size
-        else:
-            zinfo.compress_size = zinfo.file_size
-        zinfo.header_offset = self.fp.tell()    # Start of header bytes
-        self.fp.write(zinfo.FileHeader())
-        self.fp.write(bytes)
-        self.fp.flush()
-        if zinfo.flag_bits & 0x08:
-            # Write CRC and file sizes after the file data
-            self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
-                  zinfo.file_size))
-        self.filelist.append(zinfo)
-        self.NameToInfo[zinfo.filename] = zinfo
-
-    def __del__(self):
-        """Call the "close()" method in case the user forgot."""
-        self.close()
-
-    def close(self):
-        """Close the file, and for mode "w" and "a" write the ending
-        records."""
-        if self.fp is None:
-            return
-
-        if self.mode in ("w", "a") and self._didModify: # write ending records
-            count = 0
-            pos1 = self.fp.tell()
-            for zinfo in self.filelist:         # write central directory
-                count = count + 1
-                dt = zinfo.date_time
-                dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
-                dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
-                extra = []
-                if zinfo.file_size > ZIP64_LIMIT \
-                        or zinfo.compress_size > ZIP64_LIMIT:
-                    extra.append(zinfo.file_size)
-                    extra.append(zinfo.compress_size)
-                    file_size = 0xffffffff
-                    compress_size = 0xffffffff
-                else:
-                    file_size = zinfo.file_size
-                    compress_size = zinfo.compress_size
-
-                if zinfo.header_offset > ZIP64_LIMIT:
-                    extra.append(zinfo.header_offset)
-                    header_offset = 0xffffffffL
-                else:
-                    header_offset = zinfo.header_offset
-
-                extra_data = zinfo.extra
-                if extra:
-                    # Append a ZIP64 field to the extra's
-                    extra_data = struct.pack(
-                            '<HH' + 'Q'*len(extra),
-                            1, 8*len(extra), *extra) + extra_data
-
-                    extract_version = max(45, zinfo.extract_version)
-                    create_version = max(45, zinfo.create_version)
-                else:
-                    extract_version = zinfo.extract_version
-                    create_version = zinfo.create_version
-
-                try:
-                    filename, flag_bits = zinfo._encodeFilenameFlags()
-                    centdir = struct.pack(structCentralDir,
-                     stringCentralDir, create_version,
-                     zinfo.create_system, extract_version, zinfo.reserved,
-                     flag_bits, zinfo.compress_type, dostime, dosdate,
-                     zinfo.CRC, compress_size, file_size,
-                     len(filename), len(extra_data), len(zinfo.comment),
-                     0, zinfo.internal_attr, zinfo.external_attr,
-                     header_offset)
-                except DeprecationWarning:
-                    print >>sys.stderr, (structCentralDir,
-                     stringCentralDir, create_version,
-                     zinfo.create_system, extract_version, zinfo.reserved,
-                     zinfo.flag_bits, zinfo.compress_type, dostime, dosdate,
-                     zinfo.CRC, compress_size, file_size,
-                     len(zinfo.filename), len(extra_data), len(zinfo.comment),
-                     0, zinfo.internal_attr, zinfo.external_attr,
-                     header_offset)
-                    raise
-                self.fp.write(centdir)
-                self.fp.write(filename)
-                self.fp.write(extra_data)
-                self.fp.write(zinfo.comment)
-
-            pos2 = self.fp.tell()
-            # Write end-of-zip-archive record
-            centDirCount = count
-            centDirSize = pos2 - pos1
-            centDirOffset = pos1
-            if (centDirCount >= ZIP_FILECOUNT_LIMIT or
-                centDirOffset > ZIP64_LIMIT or
-                centDirSize > ZIP64_LIMIT):
-                # Need to write the ZIP64 end-of-archive records
-                zip64endrec = struct.pack(
-                        structEndArchive64, stringEndArchive64,
-                        44, 45, 45, 0, 0, centDirCount, centDirCount,
-                        centDirSize, centDirOffset)
-                self.fp.write(zip64endrec)
-
-                zip64locrec = struct.pack(
-                        structEndArchive64Locator,
-                        stringEndArchive64Locator, 0, pos2, 1)
-                self.fp.write(zip64locrec)
-                centDirCount = min(centDirCount, 0xFFFF)
-                centDirSize = min(centDirSize, 0xFFFFFFFF)
-                centDirOffset = min(centDirOffset, 0xFFFFFFFF)
-
-            # check for valid comment length
-            if len(self.comment) >= ZIP_MAX_COMMENT:
-                if self.debug > 0:
-                    msg = 'Archive comment is too long; truncating to %d bytes' \
-                          % ZIP_MAX_COMMENT
-                self.comment = self.comment[:ZIP_MAX_COMMENT]
-
-            endrec = struct.pack(structEndArchive, stringEndArchive,
-                                 0, 0, centDirCount, centDirCount,
-                                 centDirSize, centDirOffset, len(self.comment))
-            self.fp.write(endrec)
-            self.fp.write(self.comment)
-            self.fp.flush()
-
-        if not self._filePassed:
-            self.fp.close()
-        self.fp = None
-
-
-class PyZipFile(ZipFile):
-    """Class to create ZIP archives with Python library files and packages."""
-
-    def writepy(self, pathname, basename = ""):
-        """Add all files from "pathname" to the ZIP archive.
-
-        If pathname is a package directory, search the directory and
-        all package subdirectories recursively for all *.py and enter
-        the modules into the archive.  If pathname is a plain
-        directory, listdir *.py and enter all modules.  Else, pathname
-        must be a Python *.py file and the module will be put into the
-        archive.  Added modules are always module.pyo or module.pyc.
-        This method will compile the module.py into module.pyc if
-        necessary.
-        """
-        dir, name = os.path.split(pathname)
-        if os.path.isdir(pathname):
-            initname = os.path.join(pathname, "__init__.py")
-            if os.path.isfile(initname):
-                # This is a package directory, add it
-                if basename:
-                    basename = "%s/%s" % (basename, name)
-                else:
-                    basename = name
-                if self.debug:
-                    print "Adding package in", pathname, "as", basename
-                fname, arcname = self._get_codename(initname[0:-3], basename)
-                if self.debug:
-                    print "Adding", arcname
-                self.write(fname, arcname)
-                dirlist = os.listdir(pathname)
-                dirlist.remove("__init__.py")
-                # Add all *.py files and package subdirectories
-                for filename in dirlist:
-                    path = os.path.join(pathname, filename)
-                    root, ext = os.path.splitext(filename)
-                    if os.path.isdir(path):
-                        if os.path.isfile(os.path.join(path, "__init__.py")):
-                            # This is a package directory, add it
-                            self.writepy(path, basename)  # Recursive call
-                    elif ext == ".py":
-                        fname, arcname = self._get_codename(path[0:-3],
-                                         basename)
-                        if self.debug:
-                            print "Adding", arcname
-                        self.write(fname, arcname)
-            else:
-                # This is NOT a package directory, add its files at top level
-                if self.debug:
-                    print "Adding files from directory", pathname
-                for filename in os.listdir(pathname):
-                    path = os.path.join(pathname, filename)
-                    root, ext = os.path.splitext(filename)
-                    if ext == ".py":
-                        fname, arcname = self._get_codename(path[0:-3],
-                                         basename)
-                        if self.debug:
-                            print "Adding", arcname
-                        self.write(fname, arcname)
-        else:
-            if pathname[-3:] != ".py":
-                raise RuntimeError, \
-                      'Files added with writepy() must end with ".py"'
-            fname, arcname = self._get_codename(pathname[0:-3], basename)
-            if self.debug:
-                print "Adding file", arcname
-            self.write(fname, arcname)
-
-    def _get_codename(self, pathname, basename):
-        """Return (filename, archivename) for the path.
-
-        Given a module name path, return the correct file path and
-        archive name, compiling if necessary.  For example, given
-        /python/lib/string, return (/python/lib/string.pyc, string).
-        """
-        file_py  = pathname + ".py"
-        file_pyc = pathname + ".pyc"
-        file_pyo = pathname + ".pyo"
-        if os.path.isfile(file_pyo) and \
-                            os.stat(file_pyo).st_mtime >= os.stat(file_py).st_mtime:
-            fname = file_pyo    # Use .pyo file
-        elif not os.path.isfile(file_pyc) or \
-             os.stat(file_pyc).st_mtime < os.stat(file_py).st_mtime:
-            import py_compile
-            if self.debug:
-                print "Compiling", file_py
-            try:
-                py_compile.compile(file_py, file_pyc, None, True)
-            except py_compile.PyCompileError,err:
-                print err.msg
-            fname = file_pyc
-        else:
-            fname = file_pyc
-        archivename = os.path.split(fname)[1]
-        if basename:
-            archivename = "%s/%s" % (basename, archivename)
-        return (fname, archivename)
-
-
-def main(args = None):
-    import textwrap
-    USAGE=textwrap.dedent("""\
-        Usage:
-            zipfile.py -l zipfile.zip        # Show listing of a zipfile
-            zipfile.py -t zipfile.zip        # Test if a zipfile is valid
-            zipfile.py -e zipfile.zip target # Extract zipfile into target dir
-            zipfile.py -c zipfile.zip src ... # Create zipfile from sources
-        """)
-    if args is None:
-        args = sys.argv[1:]
-
-    if not args or args[0] not in ('-l', '-c', '-e', '-t'):
-        print USAGE
-        sys.exit(1)
-
-    if args[0] == '-l':
-        if len(args) != 2:
-            print USAGE
-            sys.exit(1)
-        zf = ZipFile(args[1], 'r')
-        zf.printdir()
-        zf.close()
-
-    elif args[0] == '-t':
-        if len(args) != 2:
-            print USAGE
-            sys.exit(1)
-        zf = ZipFile(args[1], 'r')
-        zf.testzip()
-        print "Done testing"
-
-    elif args[0] == '-e':
-        if len(args) != 3:
-            print USAGE
-            sys.exit(1)
-
-        zf = ZipFile(args[1], 'r')
-        out = args[2]
-        for path in zf.namelist():
-            if path.startswith('./'):
-                tgt = os.path.join(out, path[2:])
-            else:
-                tgt = os.path.join(out, path)
-
-            tgtdir = os.path.dirname(tgt)
-            if not os.path.exists(tgtdir):
-                os.makedirs(tgtdir)
-            fp = open(tgt, 'wb')
-            fp.write(zf.read(path))
-            fp.close()
-        zf.close()
-
-    elif args[0] == '-c':
-        if len(args) < 3:
-            print USAGE
-            sys.exit(1)
-
-        def addToZip(zf, path, zippath):
-            if os.path.isfile(path):
-                zf.write(path, zippath, ZIP_DEFLATED)
-            elif os.path.isdir(path):
-                for nm in os.listdir(path):
-                    addToZip(zf,
-                            os.path.join(path, nm), os.path.join(zippath, nm))
-            # else: ignore
-
-        zf = ZipFile(args[1], 'w', allowZip64=True)
-        for src in args[2:]:
-            addToZip(zf, src, os.path.basename(src))
-
-        zf.close()
-
-if __name__ == "__main__":
-    main()
--- a/2.00/zipfile266.diff	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,126 +0,0 @@
---- /usr/lib/python2.6/zipfile.py	2010-07-05 14:48:38.000000000 +0300
-+++ zipfile.py	2010-11-25 01:39:22.749743303 +0200
-@@ -1,6 +1,7 @@
- """
- Read and write ZIP files.
- """
-+# Improved by Chortos-2 in 2009 and 2010 (added bzip2 support)
- import struct, os, time, sys, shutil
- import binascii, cStringIO, stat
- 
-@@ -11,8 +12,13 @@
-     zlib = None
-     crc32 = binascii.crc32
- 
-+try:
-+    import bz2 # We may need its compression method
-+except ImportError:
-+    bz2 = None
-+
- __all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
--           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile" ]
-+           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
- 
- class BadZipfile(Exception):
-     pass
-@@ -33,6 +39,7 @@
- # constants for Zip file compression methods
- ZIP_STORED = 0
- ZIP_DEFLATED = 8
-+ZIP_BZIP2 = 12
- # Other ZIP compression methods not supported
- 
- # Below are some formats and associated data for reading/writing headers using
-@@ -467,6 +474,9 @@
-         self.compreadsize = 64*1024
-         if self.compress_type == ZIP_DEFLATED:
-             self.dc = zlib.decompressobj(-15)
-+        elif self.compress_type == ZIP_BZIP2:
-+            self.dc = bz2.BZ2Decompressor()
-+            self.compreadsize = 900000
- 
-     def set_univ_newlines(self, univ_newlines):
-         self.univ_newlines = univ_newlines
-@@ -578,7 +588,7 @@
-             if self.compress_type == ZIP_STORED:
-                 lr = len(self.readbuffer)
-                 bytesToRead = min(bytesToRead, size - lr)
--            elif self.compress_type == ZIP_DEFLATED:
-+            else:
-                 if len(self.readbuffer) > size:
-                     # the user has requested fewer bytes than we've already
-                     # pulled through the decompressor; don't read any more
-@@ -608,14 +618,17 @@
-                     newdata = ''.join(map(self.decrypter, newdata))
- 
-                 # decompress newly read data if necessary
--                if newdata and self.compress_type == ZIP_DEFLATED:
-+                if newdata and self.compress_type != ZIP_STORED:
-                     newdata = self.dc.decompress(newdata)
--                    self.rawbuffer = self.dc.unconsumed_tail
-+                    self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
-                     if self.eof and len(self.rawbuffer) == 0:
-                         # we're out of raw bytes (both from the file and
-                         # the local buffer); flush just to make sure the
-                         # decompressor is done
--                        newdata += self.dc.flush()
-+                        try:
-+                            newdata += self.dc.flush()
-+                        except AttributeError:
-+                            pass
-                         # prevent decompressor from being used again
-                         self.dc = None
- 
-@@ -641,7 +654,8 @@
-     file: Either the path to the file, or a file-like object.
-           If it is a path, the file will be opened and closed by ZipFile.
-     mode: The mode can be either read "r", write "w" or append "a".
--    compression: ZIP_STORED (no compression) or ZIP_DEFLATED (requires zlib).
-+    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
-+                 or ZIP_BZIP2 (requires bz2).
-     allowZip64: if True ZipFile will create files with ZIP64 extensions when
-                 needed, otherwise it will raise an exception when this would
-                 be necessary.
-@@ -661,6 +675,10 @@
-             if not zlib:
-                 raise RuntimeError,\
-                       "Compression requires the (missing) zlib module"
-+        elif compression == ZIP_BZIP2:
-+            if not bz2:
-+                raise RuntimeError,\
-+                      "Compression requires the (missing) bz2 module"
-         else:
-             raise RuntimeError, "That compression method is not supported"
- 
-@@ -987,7 +1005,10 @@
-         if zinfo.compress_type == ZIP_DEFLATED and not zlib:
-             raise RuntimeError, \
-                   "Compression requires the (missing) zlib module"
--        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED):
-+        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
-+            raise RuntimeError, \
-+                  "Compression requires the (missing) bz2 module"
-+        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
-             raise RuntimeError, \
-                   "That compression method is not supported"
-         if zinfo.file_size > ZIP64_LIMIT:
-@@ -1048,6 +1069,8 @@
-         if zinfo.compress_type == ZIP_DEFLATED:
-             cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                  zlib.DEFLATED, -15)
-+        elif zinfo.compress_type == ZIP_BZIP2:
-+            cmpr = bz2.BZ2Compressor()
-         else:
-             cmpr = None
-         while 1:
-@@ -1105,6 +1128,10 @@
-                  zlib.DEFLATED, -15)
-             bytes = co.compress(bytes) + co.flush()
-             zinfo.compress_size = len(bytes)    # Compressed size
-+        elif zinfo.compress_type == ZIP_BZIP2:
-+            co = bz2.BZ2Compressor()
-+            bytes = co.compress(bytes) + co.flush()
-+            zinfo.compress_size = len(bytes)    # Compressed size
-         else:
-             zinfo.compress_size = zinfo.file_size
-         zinfo.header_offset = self.fp.tell()    # Start of header bytes
--- a/2.00/zipfile27.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1468 +0,0 @@
-"""
-Read and write ZIP files.
-"""
-# Improved by Chortos-2 in 2010 (added bzip2 support)
-import struct, os, time, sys, shutil
-import binascii, cStringIO, stat
-import io
-import re
-
-try:
-    import zlib # We may need its compression method
-    crc32 = zlib.crc32
-except ImportError:
-    zlib = None
-    crc32 = binascii.crc32
-
-try:
-    import bz2 # We may need its compression method
-except ImportError:
-    bz2 = None
-
-__all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
-           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
-
-class BadZipfile(Exception):
-    pass
-
-
-class LargeZipFile(Exception):
-    """
-    Raised when writing a zipfile, the zipfile requires ZIP64 extensions
-    and those extensions are disabled.
-    """
-
-error = BadZipfile      # The exception raised by this module
-
-ZIP64_LIMIT = (1 << 31) - 1
-ZIP_FILECOUNT_LIMIT = 1 << 16
-ZIP_MAX_COMMENT = (1 << 16) - 1
-
-# constants for Zip file compression methods
-ZIP_STORED = 0
-ZIP_DEFLATED = 8
-ZIP_BZIP2 = 12
-# Other ZIP compression methods not supported
-
-# Below are some formats and associated data for reading/writing headers using
-# the struct module.  The names and structures of headers/records are those used
-# in the PKWARE description of the ZIP file format:
-#     http://www.pkware.com/documents/casestudies/APPNOTE.TXT
-# (URL valid as of January 2008)
-
-# The "end of central directory" structure, magic number, size, and indices
-# (section V.I in the format document)
-structEndArchive = "<4s4H2LH"
-stringEndArchive = "PK\005\006"
-sizeEndCentDir = struct.calcsize(structEndArchive)
-
-_ECD_SIGNATURE = 0
-_ECD_DISK_NUMBER = 1
-_ECD_DISK_START = 2
-_ECD_ENTRIES_THIS_DISK = 3
-_ECD_ENTRIES_TOTAL = 4
-_ECD_SIZE = 5
-_ECD_OFFSET = 6
-_ECD_COMMENT_SIZE = 7
-# These last two indices are not part of the structure as defined in the
-# spec, but they are used internally by this module as a convenience
-_ECD_COMMENT = 8
-_ECD_LOCATION = 9
-
-# The "central directory" structure, magic number, size, and indices
-# of entries in the structure (section V.F in the format document)
-structCentralDir = "<4s4B4HL2L5H2L"
-stringCentralDir = "PK\001\002"
-sizeCentralDir = struct.calcsize(structCentralDir)
-
-# indexes of entries in the central directory structure
-_CD_SIGNATURE = 0
-_CD_CREATE_VERSION = 1
-_CD_CREATE_SYSTEM = 2
-_CD_EXTRACT_VERSION = 3
-_CD_EXTRACT_SYSTEM = 4
-_CD_FLAG_BITS = 5
-_CD_COMPRESS_TYPE = 6
-_CD_TIME = 7
-_CD_DATE = 8
-_CD_CRC = 9
-_CD_COMPRESSED_SIZE = 10
-_CD_UNCOMPRESSED_SIZE = 11
-_CD_FILENAME_LENGTH = 12
-_CD_EXTRA_FIELD_LENGTH = 13
-_CD_COMMENT_LENGTH = 14
-_CD_DISK_NUMBER_START = 15
-_CD_INTERNAL_FILE_ATTRIBUTES = 16
-_CD_EXTERNAL_FILE_ATTRIBUTES = 17
-_CD_LOCAL_HEADER_OFFSET = 18
-
-# The "local file header" structure, magic number, size, and indices
-# (section V.A in the format document)
-structFileHeader = "<4s2B4HL2L2H"
-stringFileHeader = "PK\003\004"
-sizeFileHeader = struct.calcsize(structFileHeader)
-
-_FH_SIGNATURE = 0
-_FH_EXTRACT_VERSION = 1
-_FH_EXTRACT_SYSTEM = 2
-_FH_GENERAL_PURPOSE_FLAG_BITS = 3
-_FH_COMPRESSION_METHOD = 4
-_FH_LAST_MOD_TIME = 5
-_FH_LAST_MOD_DATE = 6
-_FH_CRC = 7
-_FH_COMPRESSED_SIZE = 8
-_FH_UNCOMPRESSED_SIZE = 9
-_FH_FILENAME_LENGTH = 10
-_FH_EXTRA_FIELD_LENGTH = 11
-
-# The "Zip64 end of central directory locator" structure, magic number, and size
-structEndArchive64Locator = "<4sLQL"
-stringEndArchive64Locator = "PK\x06\x07"
-sizeEndCentDir64Locator = struct.calcsize(structEndArchive64Locator)
-
-# The "Zip64 end of central directory" record, magic number, size, and indices
-# (section V.G in the format document)
-structEndArchive64 = "<4sQ2H2L4Q"
-stringEndArchive64 = "PK\x06\x06"
-sizeEndCentDir64 = struct.calcsize(structEndArchive64)
-
-_CD64_SIGNATURE = 0
-_CD64_DIRECTORY_RECSIZE = 1
-_CD64_CREATE_VERSION = 2
-_CD64_EXTRACT_VERSION = 3
-_CD64_DISK_NUMBER = 4
-_CD64_DISK_NUMBER_START = 5
-_CD64_NUMBER_ENTRIES_THIS_DISK = 6
-_CD64_NUMBER_ENTRIES_TOTAL = 7
-_CD64_DIRECTORY_SIZE = 8
-_CD64_OFFSET_START_CENTDIR = 9
-
-def _check_zipfile(fp):
-    try:
-        if _EndRecData(fp):
-            return True         # file has correct magic number
-    except IOError:
-        pass
-    return False
-
-def is_zipfile(filename):
-    """Quickly see if a file is a ZIP file by checking the magic number.
-
-    The filename argument may be a file or file-like object too.
-    """
-    result = False
-    try:
-        if hasattr(filename, "read"):
-            result = _check_zipfile(fp=filename)
-        else:
-            with open(filename, "rb") as fp:
-                result = _check_zipfile(fp)
-    except IOError:
-        pass
-    return result
-
-def _EndRecData64(fpin, offset, endrec):
-    """
-    Read the ZIP64 end-of-archive records and use that to update endrec
-    """
-    try:
-        fpin.seek(offset - sizeEndCentDir64Locator, 2)
-    except IOError:
-        # If the seek fails, the file is not large enough to contain a ZIP64
-        # end-of-archive record, so just return the end record we were given.
-        return endrec
-
-    data = fpin.read(sizeEndCentDir64Locator)
-    sig, diskno, reloff, disks = struct.unpack(structEndArchive64Locator, data)
-    if sig != stringEndArchive64Locator:
-        return endrec
-
-    if diskno != 0 or disks != 1:
-        raise BadZipfile("zipfiles that span multiple disks are not supported")
-
-    # Assume no 'zip64 extensible data'
-    fpin.seek(offset - sizeEndCentDir64Locator - sizeEndCentDir64, 2)
-    data = fpin.read(sizeEndCentDir64)
-    sig, sz, create_version, read_version, disk_num, disk_dir, \
-            dircount, dircount2, dirsize, diroffset = \
-            struct.unpack(structEndArchive64, data)
-    if sig != stringEndArchive64:
-        return endrec
-
-    # Update the original endrec using data from the ZIP64 record
-    endrec[_ECD_SIGNATURE] = sig
-    endrec[_ECD_DISK_NUMBER] = disk_num
-    endrec[_ECD_DISK_START] = disk_dir
-    endrec[_ECD_ENTRIES_THIS_DISK] = dircount
-    endrec[_ECD_ENTRIES_TOTAL] = dircount2
-    endrec[_ECD_SIZE] = dirsize
-    endrec[_ECD_OFFSET] = diroffset
-    return endrec
-
-
-def _EndRecData(fpin):
-    """Return data from the "End of Central Directory" record, or None.
-
-    The data is a list of the nine items in the ZIP "End of central dir"
-    record followed by a tenth item, the file seek offset of this record."""
-
-    # Determine file size
-    fpin.seek(0, 2)
-    filesize = fpin.tell()
-
-    # Check to see if this is ZIP file with no archive comment (the
-    # "end of central directory" structure should be the last item in the
-    # file if this is the case).
-    try:
-        fpin.seek(-sizeEndCentDir, 2)
-    except IOError:
-        return None
-    data = fpin.read()
-    if data[0:4] == stringEndArchive and data[-2:] == "\000\000":
-        # the signature is correct and there's no comment, unpack structure
-        endrec = struct.unpack(structEndArchive, data)
-        endrec=list(endrec)
-
-        # Append a blank comment and record start offset
-        endrec.append("")
-        endrec.append(filesize - sizeEndCentDir)
-
-        # Try to read the "Zip64 end of central directory" structure
-        return _EndRecData64(fpin, -sizeEndCentDir, endrec)
-
-    # Either this is not a ZIP file, or it is a ZIP file with an archive
-    # comment.  Search the end of the file for the "end of central directory"
-    # record signature. The comment is the last item in the ZIP file and may be
-    # up to 64K long.  It is assumed that the "end of central directory" magic
-    # number does not appear in the comment.
-    maxCommentStart = max(filesize - (1 << 16) - sizeEndCentDir, 0)
-    fpin.seek(maxCommentStart, 0)
-    data = fpin.read()
-    start = data.rfind(stringEndArchive)
-    if start >= 0:
-        # found the magic number; attempt to unpack and interpret
-        recData = data[start:start+sizeEndCentDir]
-        endrec = list(struct.unpack(structEndArchive, recData))
-        comment = data[start+sizeEndCentDir:]
-        # check that comment length is correct
-        if endrec[_ECD_COMMENT_SIZE] == len(comment):
-            # Append the archive comment and start offset
-            endrec.append(comment)
-            endrec.append(maxCommentStart + start)
-
-            # Try to read the "Zip64 end of central directory" structure
-            return _EndRecData64(fpin, maxCommentStart + start - filesize,
-                                 endrec)
-
-    # Unable to find a valid end of central directory structure
-    return
-
-
-class ZipInfo (object):
-    """Class with attributes describing each file in the ZIP archive."""
-
-    __slots__ = (
-            'orig_filename',
-            'filename',
-            'date_time',
-            'compress_type',
-            'comment',
-            'extra',
-            'create_system',
-            'create_version',
-            'extract_version',
-            'reserved',
-            'flag_bits',
-            'volume',
-            'internal_attr',
-            'external_attr',
-            'header_offset',
-            'CRC',
-            'compress_size',
-            'file_size',
-            '_raw_time',
-        )
-
-    def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)):
-        self.orig_filename = filename   # Original file name in archive
-
-        # Terminate the file name at the first null byte.  Null bytes in file
-        # names are used as tricks by viruses in archives.
-        null_byte = filename.find(chr(0))
-        if null_byte >= 0:
-            filename = filename[0:null_byte]
-        # This is used to ensure paths in generated ZIP files always use
-        # forward slashes as the directory separator, as required by the
-        # ZIP format specification.
-        if os.sep != "/" and os.sep in filename:
-            filename = filename.replace(os.sep, "/")
-
-        self.filename = filename        # Normalized file name
-        self.date_time = date_time      # year, month, day, hour, min, sec
-        # Standard values:
-        self.compress_type = ZIP_STORED # Type of compression for the file
-        self.comment = ""               # Comment for each file
-        self.extra = ""                 # ZIP extra data
-        if sys.platform == 'win32':
-            self.create_system = 0          # System which created ZIP archive
-        else:
-            # Assume everything else is unix-y
-            self.create_system = 3          # System which created ZIP archive
-        self.create_version = 20        # Version which created ZIP archive
-        self.extract_version = 20       # Version needed to extract archive
-        self.reserved = 0               # Must be zero
-        self.flag_bits = 0              # ZIP flag bits
-        self.volume = 0                 # Volume number of file header
-        self.internal_attr = 0          # Internal attributes
-        self.external_attr = 0          # External file attributes
-        # Other attributes are set by class ZipFile:
-        # header_offset         Byte offset to the file header
-        # CRC                   CRC-32 of the uncompressed file
-        # compress_size         Size of the compressed file
-        # file_size             Size of the uncompressed file
-
-    def FileHeader(self):
-        """Return the per-file header as a string."""
-        dt = self.date_time
-        dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
-        dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
-        if self.flag_bits & 0x08:
-            # Set these to zero because we write them after the file data
-            CRC = compress_size = file_size = 0
-        else:
-            CRC = self.CRC
-            compress_size = self.compress_size
-            file_size = self.file_size
-
-        extra = self.extra
-
-        if file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT:
-            # File is larger than what fits into a 4 byte integer,
-            # fall back to the ZIP64 extension
-            fmt = '<HHQQ'
-            extra = extra + struct.pack(fmt,
-                    1, struct.calcsize(fmt)-4, file_size, compress_size)
-            file_size = 0xffffffff
-            compress_size = 0xffffffff
-            self.extract_version = max(45, self.extract_version)
-            self.create_version = max(45, self.extract_version)
-
-        filename, flag_bits = self._encodeFilenameFlags()
-        header = struct.pack(structFileHeader, stringFileHeader,
-                 self.extract_version, self.reserved, flag_bits,
-                 self.compress_type, dostime, dosdate, CRC,
-                 compress_size, file_size,
-                 len(filename), len(extra))
-        return header + filename + extra
-
-    def _encodeFilenameFlags(self):
-        if isinstance(self.filename, unicode):
-            try:
-                return self.filename.encode('ascii'), self.flag_bits
-            except UnicodeEncodeError:
-                return self.filename.encode('utf-8'), self.flag_bits | 0x800
-        else:
-            return self.filename, self.flag_bits
-
-    def _decodeFilename(self):
-        if self.flag_bits & 0x800:
-            return self.filename.decode('utf-8')
-        else:
-            return self.filename
-
-    def _decodeExtra(self):
-        # Try to decode the extra field.
-        extra = self.extra
-        unpack = struct.unpack
-        while extra:
-            tp, ln = unpack('<HH', extra[:4])
-            if tp == 1:
-                if ln >= 24:
-                    counts = unpack('<QQQ', extra[4:28])
-                elif ln == 16:
-                    counts = unpack('<QQ', extra[4:20])
-                elif ln == 8:
-                    counts = unpack('<Q', extra[4:12])
-                elif ln == 0:
-                    counts = ()
-                else:
-                    raise RuntimeError, "Corrupt extra field %s"%(ln,)
-
-                idx = 0
-
-                # ZIP64 extension (large files and/or large archives)
-                if self.file_size in (0xffffffffffffffffL, 0xffffffffL):
-                    self.file_size = counts[idx]
-                    idx += 1
-
-                if self.compress_size == 0xFFFFFFFFL:
-                    self.compress_size = counts[idx]
-                    idx += 1
-
-                if self.header_offset == 0xffffffffL:
-                    old = self.header_offset
-                    self.header_offset = counts[idx]
-                    idx+=1
-
-            extra = extra[ln+4:]
-
-
-class _ZipDecrypter:
-    """Class to handle decryption of files stored within a ZIP archive.
-
-    ZIP supports a password-based form of encryption. Even though known
-    plaintext attacks have been found against it, it is still useful
-    to be able to get data out of such a file.
-
-    Usage:
-        zd = _ZipDecrypter(mypwd)
-        plain_char = zd(cypher_char)
-        plain_text = map(zd, cypher_text)
-    """
-
-    def _GenerateCRCTable():
-        """Generate a CRC-32 table.
-
-        ZIP encryption uses the CRC32 one-byte primitive for scrambling some
-        internal keys. We noticed that a direct implementation is faster than
-        relying on binascii.crc32().
-        """
-        poly = 0xedb88320
-        table = [0] * 256
-        for i in range(256):
-            crc = i
-            for j in range(8):
-                if crc & 1:
-                    crc = ((crc >> 1) & 0x7FFFFFFF) ^ poly
-                else:
-                    crc = ((crc >> 1) & 0x7FFFFFFF)
-            table[i] = crc
-        return table
-    crctable = _GenerateCRCTable()
-
-    def _crc32(self, ch, crc):
-        """Compute the CRC32 primitive on one byte."""
-        return ((crc >> 8) & 0xffffff) ^ self.crctable[(crc ^ ord(ch)) & 0xff]
-
-    def __init__(self, pwd):
-        self.key0 = 305419896
-        self.key1 = 591751049
-        self.key2 = 878082192
-        for p in pwd:
-            self._UpdateKeys(p)
-
-    def _UpdateKeys(self, c):
-        self.key0 = self._crc32(c, self.key0)
-        self.key1 = (self.key1 + (self.key0 & 255)) & 4294967295
-        self.key1 = (self.key1 * 134775813 + 1) & 4294967295
-        self.key2 = self._crc32(chr((self.key1 >> 24) & 255), self.key2)
-
-    def __call__(self, c):
-        """Decrypt a single character."""
-        c = ord(c)
-        k = self.key2 | 2
-        c = c ^ (((k * (k^1)) >> 8) & 255)
-        c = chr(c)
-        self._UpdateKeys(c)
-        return c
-
-class ZipExtFile(io.BufferedIOBase):
-    """File-like object for reading an archive member.
-       Is returned by ZipFile.open().
-    """
-
-    # Max size supported by decompressor.
-    MAX_N = 1 << 31 - 1
-
-    # Read from compressed files in 4k blocks.
-    MIN_READ_SIZE = 4096
-
-    # Search for universal newlines or line chunks.
-    PATTERN = re.compile(r'^(?P<chunk>[^\r\n]+)|(?P<newline>\n|\r\n?)')
-
-    def __init__(self, fileobj, mode, zipinfo, decrypter=None):
-        self._fileobj = fileobj
-        self._decrypter = decrypter
-
-        self._compress_type = zipinfo.compress_type
-        self._compress_size = zipinfo.compress_size
-        self._compress_left = zipinfo.compress_size
-
-        if self._compress_type == ZIP_DEFLATED:
-            self._decompressor = zlib.decompressobj(-15)
-        elif self._compress_type == ZIP_BZIP2:
-            self._decompressor = bz2.BZ2Decompressor()
-            self.MIN_READ_SIZE = 900000
-        self._unconsumed = ''
-
-        self._readbuffer = ''
-        self._offset = 0
-
-        self._universal = 'U' in mode
-        self.newlines = None
-
-        # Adjust read size for encrypted files since the first 12 bytes
-        # are for the encryption/password information.
-        if self._decrypter is not None:
-            self._compress_left -= 12
-
-        self.mode = mode
-        self.name = zipinfo.filename
-
-        if hasattr(zipinfo, 'CRC'):
-            self._expected_crc = zipinfo.CRC
-            self._running_crc = crc32(b'') & 0xffffffff
-        else:
-            self._expected_crc = None
-
-    def readline(self, limit=-1):
-        """Read and return a line from the stream.
-
-        If limit is specified, at most limit bytes will be read.
-        """
-
-        if not self._universal and limit < 0:
-            # Shortcut common case - newline found in buffer.
-            i = self._readbuffer.find('\n', self._offset) + 1
-            if i > 0:
-                line = self._readbuffer[self._offset: i]
-                self._offset = i
-                return line
-
-        if not self._universal:
-            return io.BufferedIOBase.readline(self, limit)
-
-        line = ''
-        while limit < 0 or len(line) < limit:
-            readahead = self.peek(2)
-            if readahead == '':
-                return line
-
-            #
-            # Search for universal newlines or line chunks.
-            #
-            # The pattern returns either a line chunk or a newline, but not
-            # both. Combined with peek(2), we are assured that the sequence
-            # '\r\n' is always retrieved completely and never split into
-            # separate newlines - '\r', '\n' due to coincidental readaheads.
-            #
-            match = self.PATTERN.search(readahead)
-            newline = match.group('newline')
-            if newline is not None:
-                if self.newlines is None:
-                    self.newlines = []
-                if newline not in self.newlines:
-                    self.newlines.append(newline)
-                self._offset += len(newline)
-                return line + '\n'
-
-            chunk = match.group('chunk')
-            if limit >= 0:
-                chunk = chunk[: limit - len(line)]
-
-            self._offset += len(chunk)
-            line += chunk
-
-        return line
-
-    def peek(self, n=1):
-        """Returns buffered bytes without advancing the position."""
-        if n > len(self._readbuffer) - self._offset:
-            chunk = self.read(n)
-            self._offset -= len(chunk)
-
-        # Return up to 512 bytes to reduce allocation overhead for tight loops.
-        return self._readbuffer[self._offset: self._offset + 512]
-
-    def readable(self):
-        return True
-
-    def read(self, n=-1):
-        """Read and return up to n bytes.
-        If the argument is omitted, None, or negative, data is read and returned until EOF is reached..
-        """
-        buf = ''
-        if n is None:
-            n = -1
-        while True:
-            if n < 0:
-                data = self.read1(n)
-            elif n > len(buf):
-                data = self.read1(n - len(buf))
-            else:
-                return buf
-            if len(data) == 0:
-                return buf
-            buf += data
-
-    def _update_crc(self, newdata, eof):
-        # Update the CRC using the given data.
-        if self._expected_crc is None:
-            # No need to compute the CRC if we don't have a reference value
-            return
-        self._running_crc = crc32(newdata, self._running_crc) & 0xffffffff
-        # Check the CRC if we're at the end of the file
-        if eof and self._running_crc != self._expected_crc:
-            raise BadZipfile("Bad CRC-32 for file %r" % self.name)
-
-    def read1(self, n):
-        """Read up to n bytes with at most one read() system call."""
-
-        # Simplify algorithm (branching) by transforming negative n to large n.
-        if n < 0 or n is None:
-            n = self.MAX_N
-
-        # Bytes available in read buffer.
-        len_readbuffer = len(self._readbuffer) - self._offset
-
-        # Read from file.
-        if self._compress_left > 0 and n > len_readbuffer + len(self._unconsumed):
-            nbytes = n - len_readbuffer - len(self._unconsumed)
-            nbytes = max(nbytes, self.MIN_READ_SIZE)
-            nbytes = min(nbytes, self._compress_left)
-
-            data = self._fileobj.read(nbytes)
-            self._compress_left -= len(data)
-
-            if data and self._decrypter is not None:
-                data = ''.join(map(self._decrypter, data))
-
-            if self._compress_type == ZIP_STORED:
-                self._update_crc(data, eof=(self._compress_left==0))
-                self._readbuffer = self._readbuffer[self._offset:] + data
-                self._offset = 0
-            else:
-                # Prepare deflated bytes for decompression.
-                self._unconsumed += data
-
-        # Handle unconsumed data.
-        if (len(self._unconsumed) > 0 and n > len_readbuffer and
-            self._compress_type == ZIP_DEFLATED):
-            data = self._decompressor.decompress(
-                self._unconsumed,
-                max(n - len_readbuffer, self.MIN_READ_SIZE)
-            )
-
-            self._unconsumed = self._decompressor.unconsumed_tail
-            eof = len(self._unconsumed) == 0 and self._compress_left == 0
-            if eof:
-                data += self._decompressor.flush()
-
-            self._update_crc(data, eof=eof)
-            self._readbuffer = self._readbuffer[self._offset:] + data
-            self._offset = 0
-        elif (len(self._unconsumed) > 0 and n > len_readbuffer and
-            self._compress_type == ZIP_BZIP2):
-            data = self._decompressor.decompress(self._unconsumed)
-
-            self._unconsumed = ''
-            self._readbuffer = self._readbuffer[self._offset:] + data
-            self._offset = 0
-
-        # Read from buffer.
-        data = self._readbuffer[self._offset: self._offset + n]
-        self._offset += len(data)
-        return data
-
-
-
-class ZipFile:
-    """ Class with methods to open, read, write, close, list zip files.
-
-    z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=False)
-
-    file: Either the path to the file, or a file-like object.
-          If it is a path, the file will be opened and closed by ZipFile.
-    mode: The mode can be either read "r", write "w" or append "a".
-    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
-                 or ZIP_BZIP2 (requires bz2).
-    allowZip64: if True ZipFile will create files with ZIP64 extensions when
-                needed, otherwise it will raise an exception when this would
-                be necessary.
-
-    """
-
-    fp = None                   # Set here since __del__ checks it
-
-    def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=False):
-        """Open the ZIP file with mode read "r", write "w" or append "a"."""
-        if mode not in ("r", "w", "a"):
-            raise RuntimeError('ZipFile() requires mode "r", "w", or "a"')
-
-        if compression == ZIP_STORED:
-            pass
-        elif compression == ZIP_DEFLATED:
-            if not zlib:
-                raise RuntimeError,\
-                      "Compression requires the (missing) zlib module"
-        elif compression == ZIP_BZIP2:
-            if not bz2:
-                raise RuntimeError,\
-                      "Compression requires the (missing) bz2 module"
-        else:
-            raise RuntimeError, "That compression method is not supported"
-
-        self._allowZip64 = allowZip64
-        self._didModify = False
-        self.debug = 0  # Level of printing: 0 through 3
-        self.NameToInfo = {}    # Find file info given name
-        self.filelist = []      # List of ZipInfo instances for archive
-        self.compression = compression  # Method of compression
-        self.mode = key = mode.replace('b', '')[0]
-        self.pwd = None
-        self.comment = ''
-
-        # Check if we were passed a file-like object
-        if isinstance(file, basestring):
-            self._filePassed = 0
-            self.filename = file
-            modeDict = {'r' : 'rb', 'w': 'wb', 'a' : 'r+b'}
-            try:
-                self.fp = open(file, modeDict[mode])
-            except IOError:
-                if mode == 'a':
-                    mode = key = 'w'
-                    self.fp = open(file, modeDict[mode])
-                else:
-                    raise
-        else:
-            self._filePassed = 1
-            self.fp = file
-            self.filename = getattr(file, 'name', None)
-
-        if key == 'r':
-            self._GetContents()
-        elif key == 'w':
-            # set the modified flag so central directory gets written
-            # even if no files are added to the archive
-            self._didModify = True
-        elif key == 'a':
-            try:
-                # See if file is a zip file
-                self._RealGetContents()
-                # seek to start of directory and overwrite
-                self.fp.seek(self.start_dir, 0)
-            except BadZipfile:
-                # file is not a zip file, just append
-                self.fp.seek(0, 2)
-
-                # set the modified flag so central directory gets written
-                # even if no files are added to the archive
-                self._didModify = True
-        else:
-            if not self._filePassed:
-                self.fp.close()
-                self.fp = None
-            raise RuntimeError, 'Mode must be "r", "w" or "a"'
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, type, value, traceback):
-        self.close()
-
-    def _GetContents(self):
-        """Read the directory, making sure we close the file if the format
-        is bad."""
-        try:
-            self._RealGetContents()
-        except BadZipfile:
-            if not self._filePassed:
-                self.fp.close()
-                self.fp = None
-            raise
-
-    def _RealGetContents(self):
-        """Read in the table of contents for the ZIP file."""
-        fp = self.fp
-        try:
-            endrec = _EndRecData(fp)
-        except IOError:
-            raise BadZipfile("File is not a zip file")
-        if not endrec:
-            raise BadZipfile, "File is not a zip file"
-        if self.debug > 1:
-            print endrec
-        size_cd = endrec[_ECD_SIZE]             # bytes in central directory
-        offset_cd = endrec[_ECD_OFFSET]         # offset of central directory
-        self.comment = endrec[_ECD_COMMENT]     # archive comment
-
-        # "concat" is zero, unless zip was concatenated to another file
-        concat = endrec[_ECD_LOCATION] - size_cd - offset_cd
-        if endrec[_ECD_SIGNATURE] == stringEndArchive64:
-            # If Zip64 extension structures are present, account for them
-            concat -= (sizeEndCentDir64 + sizeEndCentDir64Locator)
-
-        if self.debug > 2:
-            inferred = concat + offset_cd
-            print "given, inferred, offset", offset_cd, inferred, concat
-        # self.start_dir:  Position of start of central directory
-        self.start_dir = offset_cd + concat
-        fp.seek(self.start_dir, 0)
-        data = fp.read(size_cd)
-        fp = cStringIO.StringIO(data)
-        total = 0
-        while total < size_cd:
-            centdir = fp.read(sizeCentralDir)
-            if centdir[0:4] != stringCentralDir:
-                raise BadZipfile, "Bad magic number for central directory"
-            centdir = struct.unpack(structCentralDir, centdir)
-            if self.debug > 2:
-                print centdir
-            filename = fp.read(centdir[_CD_FILENAME_LENGTH])
-            # Create ZipInfo instance to store file information
-            x = ZipInfo(filename)
-            x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
-            x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
-            x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET]
-            (x.create_version, x.create_system, x.extract_version, x.reserved,
-                x.flag_bits, x.compress_type, t, d,
-                x.CRC, x.compress_size, x.file_size) = centdir[1:12]
-            x.volume, x.internal_attr, x.external_attr = centdir[15:18]
-            # Convert date/time code to (year, month, day, hour, min, sec)
-            x._raw_time = t
-            x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
-                                     t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
-
-            x._decodeExtra()
-            x.header_offset = x.header_offset + concat
-            x.filename = x._decodeFilename()
-            self.filelist.append(x)
-            self.NameToInfo[x.filename] = x
-
-            # update total bytes read from central directory
-            total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH]
-                     + centdir[_CD_EXTRA_FIELD_LENGTH]
-                     + centdir[_CD_COMMENT_LENGTH])
-
-            if self.debug > 2:
-                print "total", total
-
-
-    def namelist(self):
-        """Return a list of file names in the archive."""
-        l = []
-        for data in self.filelist:
-            l.append(data.filename)
-        return l
-
-    def infolist(self):
-        """Return a list of class ZipInfo instances for files in the
-        archive."""
-        return self.filelist
-
-    def printdir(self):
-        """Print a table of contents for the zip file."""
-        print "%-46s %19s %12s" % ("File Name", "Modified    ", "Size")
-        for zinfo in self.filelist:
-            date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]
-            print "%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size)
-
-    def testzip(self):
-        """Read all the files and check the CRC."""
-        chunk_size = 2 ** 20
-        for zinfo in self.filelist:
-            try:
-                # Read by chunks, to avoid an OverflowError or a
-                # MemoryError with very large embedded files.
-                f = self.open(zinfo.filename, "r")
-                while f.read(chunk_size):     # Check CRC-32
-                    pass
-            except BadZipfile:
-                return zinfo.filename
-
-    def getinfo(self, name):
-        """Return the instance of ZipInfo given 'name'."""
-        info = self.NameToInfo.get(name)
-        if info is None:
-            raise KeyError(
-                'There is no item named %r in the archive' % name)
-
-        return info
-
-    def setpassword(self, pwd):
-        """Set default password for encrypted files."""
-        self.pwd = pwd
-
-    def read(self, name, pwd=None):
-        """Return file bytes (as a string) for name."""
-        return self.open(name, "r", pwd).read()
-
-    def open(self, name, mode="r", pwd=None):
-        """Return file-like object for 'name'."""
-        if mode not in ("r", "U", "rU"):
-            raise RuntimeError, 'open() requires mode "r", "U", or "rU"'
-        if not self.fp:
-            raise RuntimeError, \
-                  "Attempt to read ZIP archive that was already closed"
-
-        # Only open a new file for instances where we were not
-        # given a file object in the constructor
-        if self._filePassed:
-            zef_file = self.fp
-        else:
-            zef_file = open(self.filename, 'rb')
-
-        # Make sure we have an info object
-        if isinstance(name, ZipInfo):
-            # 'name' is already an info object
-            zinfo = name
-        else:
-            # Get info object for name
-            zinfo = self.getinfo(name)
-
-        zef_file.seek(zinfo.header_offset, 0)
-
-        # Skip the file header:
-        fheader = zef_file.read(sizeFileHeader)
-        if fheader[0:4] != stringFileHeader:
-            raise BadZipfile, "Bad magic number for file header"
-
-        fheader = struct.unpack(structFileHeader, fheader)
-        fname = zef_file.read(fheader[_FH_FILENAME_LENGTH])
-        if fheader[_FH_EXTRA_FIELD_LENGTH]:
-            zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
-
-        if fname != zinfo.orig_filename:
-            raise BadZipfile, \
-                      'File name in directory "%s" and header "%s" differ.' % (
-                          zinfo.orig_filename, fname)
-
-        # check for encrypted flag & handle password
-        is_encrypted = zinfo.flag_bits & 0x1
-        zd = None
-        if is_encrypted:
-            if not pwd:
-                pwd = self.pwd
-            if not pwd:
-                raise RuntimeError, "File %s is encrypted, " \
-                      "password required for extraction" % name
-
-            zd = _ZipDecrypter(pwd)
-            # The first 12 bytes in the cypher stream is an encryption header
-            #  used to strengthen the algorithm. The first 11 bytes are
-            #  completely random, while the 12th contains the MSB of the CRC,
-            #  or the MSB of the file time depending on the header type
-            #  and is used to check the correctness of the password.
-            bytes = zef_file.read(12)
-            h = map(zd, bytes[0:12])
-            if zinfo.flag_bits & 0x8:
-                # compare against the file type from extended local headers
-                check_byte = (zinfo._raw_time >> 8) & 0xff
-            else:
-                # compare against the CRC otherwise
-                check_byte = (zinfo.CRC >> 24) & 0xff
-            if ord(h[11]) != check_byte:
-                raise RuntimeError("Bad password for file", name)
-
-        return  ZipExtFile(zef_file, mode, zinfo, zd)
-
-    def extract(self, member, path=None, pwd=None):
-        """Extract a member from the archive to the current working directory,
-           using its full name. Its file information is extracted as accurately
-           as possible. `member' may be a filename or a ZipInfo object. You can
-           specify a different directory using `path'.
-        """
-        if not isinstance(member, ZipInfo):
-            member = self.getinfo(member)
-
-        if path is None:
-            path = os.getcwd()
-
-        return self._extract_member(member, path, pwd)
-
-    def extractall(self, path=None, members=None, pwd=None):
-        """Extract all members from the archive to the current working
-           directory. `path' specifies a different directory to extract to.
-           `members' is optional and must be a subset of the list returned
-           by namelist().
-        """
-        if members is None:
-            members = self.namelist()
-
-        for zipinfo in members:
-            self.extract(zipinfo, path, pwd)
-
-    def _extract_member(self, member, targetpath, pwd):
-        """Extract the ZipInfo object 'member' to a physical
-           file on the path targetpath.
-        """
-        # build the destination pathname, replacing
-        # forward slashes to platform specific separators.
-        # Strip trailing path separator, unless it represents the root.
-        if (targetpath[-1:] in (os.path.sep, os.path.altsep)
-            and len(os.path.splitdrive(targetpath)[1]) > 1):
-            targetpath = targetpath[:-1]
-
-        # don't include leading "/" from file name if present
-        if member.filename[0] == '/':
-            targetpath = os.path.join(targetpath, member.filename[1:])
-        else:
-            targetpath = os.path.join(targetpath, member.filename)
-
-        targetpath = os.path.normpath(targetpath)
-
-        # Create all upper directories if necessary.
-        upperdirs = os.path.dirname(targetpath)
-        if upperdirs and not os.path.exists(upperdirs):
-            os.makedirs(upperdirs)
-
-        if member.filename[-1] == '/':
-            if not os.path.isdir(targetpath):
-                os.mkdir(targetpath)
-            return targetpath
-
-        source = self.open(member, pwd=pwd)
-        target = file(targetpath, "wb")
-        shutil.copyfileobj(source, target)
-        source.close()
-        target.close()
-
-        return targetpath
-
-    def _writecheck(self, zinfo):
-        """Check for errors before writing a file to the archive."""
-        if zinfo.filename in self.NameToInfo:
-            if self.debug:      # Warning for duplicate names
-                print "Duplicate name:", zinfo.filename
-        if self.mode not in ("w", "a"):
-            raise RuntimeError, 'write() requires mode "w" or "a"'
-        if not self.fp:
-            raise RuntimeError, \
-                  "Attempt to write ZIP archive that was already closed"
-        if zinfo.compress_type == ZIP_DEFLATED and not zlib:
-            raise RuntimeError, \
-                  "Compression requires the (missing) zlib module"
-        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
-            raise RuntimeError, \
-                  "Compression requires the (missing) bz2 module"
-        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
-            raise RuntimeError, \
-                  "That compression method is not supported"
-        if zinfo.file_size > ZIP64_LIMIT:
-            if not self._allowZip64:
-                raise LargeZipFile("Filesize would require ZIP64 extensions")
-        if zinfo.header_offset > ZIP64_LIMIT:
-            if not self._allowZip64:
-                raise LargeZipFile("Zipfile size would require ZIP64 extensions")
-
-    def write(self, filename, arcname=None, compress_type=None):
-        """Put the bytes from filename into the archive under the name
-        arcname."""
-        if not self.fp:
-            raise RuntimeError(
-                  "Attempt to write to ZIP archive that was already closed")
-
-        st = os.stat(filename)
-        isdir = stat.S_ISDIR(st.st_mode)
-        mtime = time.localtime(st.st_mtime)
-        date_time = mtime[0:6]
-        # Create ZipInfo instance to store file information
-        if arcname is None:
-            arcname = filename
-        arcname = os.path.normpath(os.path.splitdrive(arcname)[1])
-        while arcname[0] in (os.sep, os.altsep):
-            arcname = arcname[1:]
-        if isdir:
-            arcname += '/'
-        zinfo = ZipInfo(arcname, date_time)
-        zinfo.external_attr = (st[0] & 0xFFFF) << 16L      # Unix attributes
-        if compress_type is None:
-            zinfo.compress_type = self.compression
-        else:
-            zinfo.compress_type = compress_type
-
-        zinfo.file_size = st.st_size
-        zinfo.flag_bits = 0x00
-        zinfo.header_offset = self.fp.tell()    # Start of header bytes
-
-        self._writecheck(zinfo)
-        self._didModify = True
-
-        if isdir:
-            zinfo.file_size = 0
-            zinfo.compress_size = 0
-            zinfo.CRC = 0
-            self.filelist.append(zinfo)
-            self.NameToInfo[zinfo.filename] = zinfo
-            self.fp.write(zinfo.FileHeader())
-            return
-
-        with open(filename, "rb") as fp:
-            # Must overwrite CRC and sizes with correct data later
-            zinfo.CRC = CRC = 0
-            zinfo.compress_size = compress_size = 0
-            zinfo.file_size = file_size = 0
-            self.fp.write(zinfo.FileHeader())
-            if zinfo.compress_type == ZIP_DEFLATED:
-                cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                     zlib.DEFLATED, -15)
-            elif zinfo.compress_type == ZIP_BZIP2:
-                cmpr = bz2.BZ2Compressor()
-            else:
-                cmpr = None
-            while 1:
-                buf = fp.read(1024 * 8)
-                if not buf:
-                    break
-                file_size = file_size + len(buf)
-                CRC = crc32(buf, CRC) & 0xffffffff
-                if cmpr:
-                    buf = cmpr.compress(buf)
-                    compress_size = compress_size + len(buf)
-                self.fp.write(buf)
-        if cmpr:
-            buf = cmpr.flush()
-            compress_size = compress_size + len(buf)
-            self.fp.write(buf)
-            zinfo.compress_size = compress_size
-        else:
-            zinfo.compress_size = file_size
-        zinfo.CRC = CRC
-        zinfo.file_size = file_size
-        # Seek backwards and write CRC and file sizes
-        position = self.fp.tell()       # Preserve current position in file
-        self.fp.seek(zinfo.header_offset + 14, 0)
-        self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
-              zinfo.file_size))
-        self.fp.seek(position, 0)
-        self.filelist.append(zinfo)
-        self.NameToInfo[zinfo.filename] = zinfo
-
-    def writestr(self, zinfo_or_arcname, bytes, compress_type=None):
-        """Write a file into the archive.  The contents is the string
-        'bytes'.  'zinfo_or_arcname' is either a ZipInfo instance or
-        the name of the file in the archive."""
-        if not isinstance(zinfo_or_arcname, ZipInfo):
-            zinfo = ZipInfo(filename=zinfo_or_arcname,
-                            date_time=time.localtime(time.time())[:6])
-
-            zinfo.compress_type = self.compression
-            zinfo.external_attr = 0600 << 16
-        else:
-            zinfo = zinfo_or_arcname
-
-        if not self.fp:
-            raise RuntimeError(
-                  "Attempt to write to ZIP archive that was already closed")
-
-        if compress_type is not None:
-            zinfo.compress_type = compress_type
-
-        zinfo.file_size = len(bytes)            # Uncompressed size
-        zinfo.header_offset = self.fp.tell()    # Start of header bytes
-        self._writecheck(zinfo)
-        self._didModify = True
-        zinfo.CRC = crc32(bytes) & 0xffffffff       # CRC-32 checksum
-        if zinfo.compress_type == ZIP_DEFLATED:
-            co = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                 zlib.DEFLATED, -15)
-            bytes = co.compress(bytes) + co.flush()
-            zinfo.compress_size = len(bytes)    # Compressed size
-        elif zinfo.compress_type == ZIP_BZIP2:
-            co = bz2.BZ2Compressor()
-            bytes = co.compress(bytes) + co.flush()
-            zinfo.compress_size = len(bytes)    # Compressed size
-        else:
-            zinfo.compress_size = zinfo.file_size
-        zinfo.header_offset = self.fp.tell()    # Start of header bytes
-        self.fp.write(zinfo.FileHeader())
-        self.fp.write(bytes)
-        self.fp.flush()
-        if zinfo.flag_bits & 0x08:
-            # Write CRC and file sizes after the file data
-            self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
-                  zinfo.file_size))
-        self.filelist.append(zinfo)
-        self.NameToInfo[zinfo.filename] = zinfo
-
-    def __del__(self):
-        """Call the "close()" method in case the user forgot."""
-        self.close()
-
-    def close(self):
-        """Close the file, and for mode "w" and "a" write the ending
-        records."""
-        if self.fp is None:
-            return
-
-        if self.mode in ("w", "a") and self._didModify: # write ending records
-            count = 0
-            pos1 = self.fp.tell()
-            for zinfo in self.filelist:         # write central directory
-                count = count + 1
-                dt = zinfo.date_time
-                dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
-                dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
-                extra = []
-                if zinfo.file_size > ZIP64_LIMIT \
-                        or zinfo.compress_size > ZIP64_LIMIT:
-                    extra.append(zinfo.file_size)
-                    extra.append(zinfo.compress_size)
-                    file_size = 0xffffffff
-                    compress_size = 0xffffffff
-                else:
-                    file_size = zinfo.file_size
-                    compress_size = zinfo.compress_size
-
-                if zinfo.header_offset > ZIP64_LIMIT:
-                    extra.append(zinfo.header_offset)
-                    header_offset = 0xffffffffL
-                else:
-                    header_offset = zinfo.header_offset
-
-                extra_data = zinfo.extra
-                if extra:
-                    # Append a ZIP64 field to the extra's
-                    extra_data = struct.pack(
-                            '<HH' + 'Q'*len(extra),
-                            1, 8*len(extra), *extra) + extra_data
-
-                    extract_version = max(45, zinfo.extract_version)
-                    create_version = max(45, zinfo.create_version)
-                else:
-                    extract_version = zinfo.extract_version
-                    create_version = zinfo.create_version
-
-                try:
-                    filename, flag_bits = zinfo._encodeFilenameFlags()
-                    centdir = struct.pack(structCentralDir,
-                     stringCentralDir, create_version,
-                     zinfo.create_system, extract_version, zinfo.reserved,
-                     flag_bits, zinfo.compress_type, dostime, dosdate,
-                     zinfo.CRC, compress_size, file_size,
-                     len(filename), len(extra_data), len(zinfo.comment),
-                     0, zinfo.internal_attr, zinfo.external_attr,
-                     header_offset)
-                except DeprecationWarning:
-                    print >>sys.stderr, (structCentralDir,
-                     stringCentralDir, create_version,
-                     zinfo.create_system, extract_version, zinfo.reserved,
-                     zinfo.flag_bits, zinfo.compress_type, dostime, dosdate,
-                     zinfo.CRC, compress_size, file_size,
-                     len(zinfo.filename), len(extra_data), len(zinfo.comment),
-                     0, zinfo.internal_attr, zinfo.external_attr,
-                     header_offset)
-                    raise
-                self.fp.write(centdir)
-                self.fp.write(filename)
-                self.fp.write(extra_data)
-                self.fp.write(zinfo.comment)
-
-            pos2 = self.fp.tell()
-            # Write end-of-zip-archive record
-            centDirCount = count
-            centDirSize = pos2 - pos1
-            centDirOffset = pos1
-            if (centDirCount >= ZIP_FILECOUNT_LIMIT or
-                centDirOffset > ZIP64_LIMIT or
-                centDirSize > ZIP64_LIMIT):
-                # Need to write the ZIP64 end-of-archive records
-                zip64endrec = struct.pack(
-                        structEndArchive64, stringEndArchive64,
-                        44, 45, 45, 0, 0, centDirCount, centDirCount,
-                        centDirSize, centDirOffset)
-                self.fp.write(zip64endrec)
-
-                zip64locrec = struct.pack(
-                        structEndArchive64Locator,
-                        stringEndArchive64Locator, 0, pos2, 1)
-                self.fp.write(zip64locrec)
-                centDirCount = min(centDirCount, 0xFFFF)
-                centDirSize = min(centDirSize, 0xFFFFFFFF)
-                centDirOffset = min(centDirOffset, 0xFFFFFFFF)
-
-            # check for valid comment length
-            if len(self.comment) >= ZIP_MAX_COMMENT:
-                if self.debug > 0:
-                    msg = 'Archive comment is too long; truncating to %d bytes' \
-                          % ZIP_MAX_COMMENT
-                self.comment = self.comment[:ZIP_MAX_COMMENT]
-
-            endrec = struct.pack(structEndArchive, stringEndArchive,
-                                 0, 0, centDirCount, centDirCount,
-                                 centDirSize, centDirOffset, len(self.comment))
-            self.fp.write(endrec)
-            self.fp.write(self.comment)
-            self.fp.flush()
-
-        if not self._filePassed:
-            self.fp.close()
-        self.fp = None
-
-
-class PyZipFile(ZipFile):
-    """Class to create ZIP archives with Python library files and packages."""
-
-    def writepy(self, pathname, basename = ""):
-        """Add all files from "pathname" to the ZIP archive.
-
-        If pathname is a package directory, search the directory and
-        all package subdirectories recursively for all *.py and enter
-        the modules into the archive.  If pathname is a plain
-        directory, listdir *.py and enter all modules.  Else, pathname
-        must be a Python *.py file and the module will be put into the
-        archive.  Added modules are always module.pyo or module.pyc.
-        This method will compile the module.py into module.pyc if
-        necessary.
-        """
-        dir, name = os.path.split(pathname)
-        if os.path.isdir(pathname):
-            initname = os.path.join(pathname, "__init__.py")
-            if os.path.isfile(initname):
-                # This is a package directory, add it
-                if basename:
-                    basename = "%s/%s" % (basename, name)
-                else:
-                    basename = name
-                if self.debug:
-                    print "Adding package in", pathname, "as", basename
-                fname, arcname = self._get_codename(initname[0:-3], basename)
-                if self.debug:
-                    print "Adding", arcname
-                self.write(fname, arcname)
-                dirlist = os.listdir(pathname)
-                dirlist.remove("__init__.py")
-                # Add all *.py files and package subdirectories
-                for filename in dirlist:
-                    path = os.path.join(pathname, filename)
-                    root, ext = os.path.splitext(filename)
-                    if os.path.isdir(path):
-                        if os.path.isfile(os.path.join(path, "__init__.py")):
-                            # This is a package directory, add it
-                            self.writepy(path, basename)  # Recursive call
-                    elif ext == ".py":
-                        fname, arcname = self._get_codename(path[0:-3],
-                                         basename)
-                        if self.debug:
-                            print "Adding", arcname
-                        self.write(fname, arcname)
-            else:
-                # This is NOT a package directory, add its files at top level
-                if self.debug:
-                    print "Adding files from directory", pathname
-                for filename in os.listdir(pathname):
-                    path = os.path.join(pathname, filename)
-                    root, ext = os.path.splitext(filename)
-                    if ext == ".py":
-                        fname, arcname = self._get_codename(path[0:-3],
-                                         basename)
-                        if self.debug:
-                            print "Adding", arcname
-                        self.write(fname, arcname)
-        else:
-            if pathname[-3:] != ".py":
-                raise RuntimeError, \
-                      'Files added with writepy() must end with ".py"'
-            fname, arcname = self._get_codename(pathname[0:-3], basename)
-            if self.debug:
-                print "Adding file", arcname
-            self.write(fname, arcname)
-
-    def _get_codename(self, pathname, basename):
-        """Return (filename, archivename) for the path.
-
-        Given a module name path, return the correct file path and
-        archive name, compiling if necessary.  For example, given
-        /python/lib/string, return (/python/lib/string.pyc, string).
-        """
-        file_py  = pathname + ".py"
-        file_pyc = pathname + ".pyc"
-        file_pyo = pathname + ".pyo"
-        if os.path.isfile(file_pyo) and \
-                            os.stat(file_pyo).st_mtime >= os.stat(file_py).st_mtime:
-            fname = file_pyo    # Use .pyo file
-        elif not os.path.isfile(file_pyc) or \
-             os.stat(file_pyc).st_mtime < os.stat(file_py).st_mtime:
-            import py_compile
-            if self.debug:
-                print "Compiling", file_py
-            try:
-                py_compile.compile(file_py, file_pyc, None, True)
-            except py_compile.PyCompileError,err:
-                print err.msg
-            fname = file_pyc
-        else:
-            fname = file_pyc
-        archivename = os.path.split(fname)[1]
-        if basename:
-            archivename = "%s/%s" % (basename, archivename)
-        return (fname, archivename)
-
-
-def main(args = None):
-    import textwrap
-    USAGE=textwrap.dedent("""\
-        Usage:
-            zipfile.py -l zipfile.zip        # Show listing of a zipfile
-            zipfile.py -t zipfile.zip        # Test if a zipfile is valid
-            zipfile.py -e zipfile.zip target # Extract zipfile into target dir
-            zipfile.py -c zipfile.zip src ... # Create zipfile from sources
-        """)
-    if args is None:
-        args = sys.argv[1:]
-
-    if not args or args[0] not in ('-l', '-c', '-e', '-t'):
-        print USAGE
-        sys.exit(1)
-
-    if args[0] == '-l':
-        if len(args) != 2:
-            print USAGE
-            sys.exit(1)
-        zf = ZipFile(args[1], 'r')
-        zf.printdir()
-        zf.close()
-
-    elif args[0] == '-t':
-        if len(args) != 2:
-            print USAGE
-            sys.exit(1)
-        zf = ZipFile(args[1], 'r')
-        badfile = zf.testzip()
-        if badfile:
-            print("The following enclosed file is corrupted: {!r}".format(badfile))
-        print "Done testing"
-
-    elif args[0] == '-e':
-        if len(args) != 3:
-            print USAGE
-            sys.exit(1)
-
-        zf = ZipFile(args[1], 'r')
-        out = args[2]
-        for path in zf.namelist():
-            if path.startswith('./'):
-                tgt = os.path.join(out, path[2:])
-            else:
-                tgt = os.path.join(out, path)
-
-            tgtdir = os.path.dirname(tgt)
-            if not os.path.exists(tgtdir):
-                os.makedirs(tgtdir)
-            with open(tgt, 'wb') as fp:
-                fp.write(zf.read(path))
-        zf.close()
-
-    elif args[0] == '-c':
-        if len(args) < 3:
-            print USAGE
-            sys.exit(1)
-
-        def addToZip(zf, path, zippath):
-            if os.path.isfile(path):
-                zf.write(path, zippath, ZIP_DEFLATED)
-            elif os.path.isdir(path):
-                for nm in os.listdir(path):
-                    addToZip(zf,
-                            os.path.join(path, nm), os.path.join(zippath, nm))
-            # else: ignore
-
-        zf = ZipFile(args[1], 'w', allowZip64=True)
-        for src in args[2:]:
-            addToZip(zf, src, os.path.basename(src))
-
-        zf.close()
-
-if __name__ == "__main__":
-    main()
--- a/2.00/zipfile271.diff	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,110 +0,0 @@
---- /usr/local/lib/python2.7/zipfile.py	2010-11-29 00:56:38.000000000 +0000
-+++ zipfile271.py	2010-11-29 01:20:17.000000000 +0000
-@@ -1,6 +1,7 @@
- """
- Read and write ZIP files.
- """
-+# Improved by Chortos-2 in 2010 (added bzip2 support)
- import struct, os, time, sys, shutil
- import binascii, cStringIO, stat
- import io
-@@ -13,8 +14,13 @@
-     zlib = None
-     crc32 = binascii.crc32
- 
-+try:
-+    import bz2 # We may need its compression method
-+except ImportError:
-+    bz2 = None
-+
- __all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
--           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile" ]
-+           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
- 
- class BadZipfile(Exception):
-     pass
-@@ -35,6 +41,7 @@
- # constants for Zip file compression methods
- ZIP_STORED = 0
- ZIP_DEFLATED = 8
-+ZIP_BZIP2 = 12
- # Other ZIP compression methods not supported
- 
- # Below are some formats and associated data for reading/writing headers using
-@@ -483,6 +490,9 @@
- 
-         if self._compress_type == ZIP_DEFLATED:
-             self._decompressor = zlib.decompressobj(-15)
-+        elif self._compress_type == ZIP_BZIP2:
-+            self._decompressor = bz2.BZ2Decompressor()
-+            self.MIN_READ_SIZE = 900000
-         self._unconsumed = ''
- 
-         self._readbuffer = ''
-@@ -641,6 +651,13 @@
-             self._update_crc(data, eof=eof)
-             self._readbuffer = self._readbuffer[self._offset:] + data
-             self._offset = 0
-+        elif (len(self._unconsumed) > 0 and n > len_readbuffer and
-+            self._compress_type == ZIP_BZIP2):
-+            data = self._decompressor.decompress(self._unconsumed)
-+
-+            self._unconsumed = ''
-+            self._readbuffer = self._readbuffer[self._offset:] + data
-+            self._offset = 0
- 
-         # Read from buffer.
-         data = self._readbuffer[self._offset: self._offset + n]
-@@ -657,7 +674,8 @@
-     file: Either the path to the file, or a file-like object.
-           If it is a path, the file will be opened and closed by ZipFile.
-     mode: The mode can be either read "r", write "w" or append "a".
--    compression: ZIP_STORED (no compression) or ZIP_DEFLATED (requires zlib).
-+    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
-+                 or ZIP_BZIP2 (requires bz2).
-     allowZip64: if True ZipFile will create files with ZIP64 extensions when
-                 needed, otherwise it will raise an exception when this would
-                 be necessary.
-@@ -677,6 +695,10 @@
-             if not zlib:
-                 raise RuntimeError,\
-                       "Compression requires the (missing) zlib module"
-+        elif compression == ZIP_BZIP2:
-+            if not bz2:
-+                raise RuntimeError,\
-+                      "Compression requires the (missing) bz2 module"
-         else:
-             raise RuntimeError, "That compression method is not supported"
- 
-@@ -1011,7 +1033,10 @@
-         if zinfo.compress_type == ZIP_DEFLATED and not zlib:
-             raise RuntimeError, \
-                   "Compression requires the (missing) zlib module"
--        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED):
-+        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
-+            raise RuntimeError, \
-+                  "Compression requires the (missing) bz2 module"
-+        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
-             raise RuntimeError, \
-                   "That compression method is not supported"
-         if zinfo.file_size > ZIP64_LIMIT:
-@@ -1072,6 +1097,8 @@
-             if zinfo.compress_type == ZIP_DEFLATED:
-                 cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                      zlib.DEFLATED, -15)
-+            elif zinfo.compress_type == ZIP_BZIP2:
-+                cmpr = bz2.BZ2Compressor()
-             else:
-                 cmpr = None
-             while 1:
-@@ -1132,6 +1159,10 @@
-                  zlib.DEFLATED, -15)
-             bytes = co.compress(bytes) + co.flush()
-             zinfo.compress_size = len(bytes)    # Compressed size
-+        elif zinfo.compress_type == ZIP_BZIP2:
-+            co = bz2.BZ2Compressor()
-+            bytes = co.compress(bytes) + co.flush()
-+            zinfo.compress_size = len(bytes)    # Compressed size
-         else:
-             zinfo.compress_size = zinfo.file_size
-         zinfo.header_offset = self.fp.tell()    # Start of header bytes
--- a/2.00/zipfile31.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1493 +0,0 @@
-"""
-Read and write ZIP files.
-
-XXX references to utf-8 need further investigation.
-"""
-# Improved by Chortos-2 in 2010 (added bzip2 support)
-import struct, os, time, sys, shutil
-import binascii, io, stat
-
-try:
-    import zlib # We may need its compression method
-    crc32 = zlib.crc32
-except ImportError:
-    zlib = None
-    crc32 = binascii.crc32
-
-try:
-    import bz2 # We may need its compression method
-except ImportError:
-    bz2 = None
-
-__all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
-           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
-
-class BadZipfile(Exception):
-    pass
-
-
-class LargeZipFile(Exception):
-    """
-    Raised when writing a zipfile, the zipfile requires ZIP64 extensions
-    and those extensions are disabled.
-    """
-
-error = BadZipfile      # The exception raised by this module
-
-ZIP64_LIMIT = (1 << 31) - 1
-ZIP_FILECOUNT_LIMIT = 1 << 16
-ZIP_MAX_COMMENT = (1 << 16) - 1
-
-# constants for Zip file compression methods
-ZIP_STORED = 0
-ZIP_DEFLATED = 8
-ZIP_BZIP2 = 12
-# Other ZIP compression methods not supported
-
-# Below are some formats and associated data for reading/writing headers using
-# the struct module.  The names and structures of headers/records are those used
-# in the PKWARE description of the ZIP file format:
-#     http://www.pkware.com/documents/casestudies/APPNOTE.TXT
-# (URL valid as of January 2008)
-
-# The "end of central directory" structure, magic number, size, and indices
-# (section V.I in the format document)
-structEndArchive = b"<4s4H2LH"
-stringEndArchive = b"PK\005\006"
-sizeEndCentDir = struct.calcsize(structEndArchive)
-
-_ECD_SIGNATURE = 0
-_ECD_DISK_NUMBER = 1
-_ECD_DISK_START = 2
-_ECD_ENTRIES_THIS_DISK = 3
-_ECD_ENTRIES_TOTAL = 4
-_ECD_SIZE = 5
-_ECD_OFFSET = 6
-_ECD_COMMENT_SIZE = 7
-# These last two indices are not part of the structure as defined in the
-# spec, but they are used internally by this module as a convenience
-_ECD_COMMENT = 8
-_ECD_LOCATION = 9
-
-# The "central directory" structure, magic number, size, and indices
-# of entries in the structure (section V.F in the format document)
-structCentralDir = "<4s4B4HL2L5H2L"
-stringCentralDir = b"PK\001\002"
-sizeCentralDir = struct.calcsize(structCentralDir)
-
-# indexes of entries in the central directory structure
-_CD_SIGNATURE = 0
-_CD_CREATE_VERSION = 1
-_CD_CREATE_SYSTEM = 2
-_CD_EXTRACT_VERSION = 3
-_CD_EXTRACT_SYSTEM = 4
-_CD_FLAG_BITS = 5
-_CD_COMPRESS_TYPE = 6
-_CD_TIME = 7
-_CD_DATE = 8
-_CD_CRC = 9
-_CD_COMPRESSED_SIZE = 10
-_CD_UNCOMPRESSED_SIZE = 11
-_CD_FILENAME_LENGTH = 12
-_CD_EXTRA_FIELD_LENGTH = 13
-_CD_COMMENT_LENGTH = 14
-_CD_DISK_NUMBER_START = 15
-_CD_INTERNAL_FILE_ATTRIBUTES = 16
-_CD_EXTERNAL_FILE_ATTRIBUTES = 17
-_CD_LOCAL_HEADER_OFFSET = 18
-
-# The "local file header" structure, magic number, size, and indices
-# (section V.A in the format document)
-structFileHeader = "<4s2B4HL2L2H"
-stringFileHeader = b"PK\003\004"
-sizeFileHeader = struct.calcsize(structFileHeader)
-
-_FH_SIGNATURE = 0
-_FH_EXTRACT_VERSION = 1
-_FH_EXTRACT_SYSTEM = 2
-_FH_GENERAL_PURPOSE_FLAG_BITS = 3
-_FH_COMPRESSION_METHOD = 4
-_FH_LAST_MOD_TIME = 5
-_FH_LAST_MOD_DATE = 6
-_FH_CRC = 7
-_FH_COMPRESSED_SIZE = 8
-_FH_UNCOMPRESSED_SIZE = 9
-_FH_FILENAME_LENGTH = 10
-_FH_EXTRA_FIELD_LENGTH = 11
-
-# The "Zip64 end of central directory locator" structure, magic number, and size
-structEndArchive64Locator = "<4sLQL"
-stringEndArchive64Locator = b"PK\x06\x07"
-sizeEndCentDir64Locator = struct.calcsize(structEndArchive64Locator)
-
-# The "Zip64 end of central directory" record, magic number, size, and indices
-# (section V.G in the format document)
-structEndArchive64 = "<4sQ2H2L4Q"
-stringEndArchive64 = b"PK\x06\x06"
-sizeEndCentDir64 = struct.calcsize(structEndArchive64)
-
-_CD64_SIGNATURE = 0
-_CD64_DIRECTORY_RECSIZE = 1
-_CD64_CREATE_VERSION = 2
-_CD64_EXTRACT_VERSION = 3
-_CD64_DISK_NUMBER = 4
-_CD64_DISK_NUMBER_START = 5
-_CD64_NUMBER_ENTRIES_THIS_DISK = 6
-_CD64_NUMBER_ENTRIES_TOTAL = 7
-_CD64_DIRECTORY_SIZE = 8
-_CD64_OFFSET_START_CENTDIR = 9
-
-def _check_zipfile(fp):
-    try:
-        if _EndRecData(fp):
-            return True         # file has correct magic number
-    except IOError:
-        pass
-    return False
-
-def is_zipfile(filename):
-    """Quickly see if a file is a ZIP file by checking the magic number.
-
-    The filename argument may be a file or file-like object too.
-    """
-    result = False
-    try:
-        if hasattr(filename, "read"):
-            result = _check_zipfile(fp=filename)
-        else:
-            with open(filename, "rb") as fp:
-                result = _check_zipfile(fp)
-    except IOError:
-        pass
-    return result
-
-def _EndRecData64(fpin, offset, endrec):
-    """
-    Read the ZIP64 end-of-archive records and use that to update endrec
-    """
-    try:
-        fpin.seek(offset - sizeEndCentDir64Locator, 2)
-    except IOError:
-        # If the seek fails, the file is not large enough to contain a ZIP64
-        # end-of-archive record, so just return the end record we were given.
-        return endrec
-
-    data = fpin.read(sizeEndCentDir64Locator)
-    sig, diskno, reloff, disks = struct.unpack(structEndArchive64Locator, data)
-    if sig != stringEndArchive64Locator:
-        return endrec
-
-    if diskno != 0 or disks != 1:
-        raise BadZipfile("zipfiles that span multiple disks are not supported")
-
-    # Assume no 'zip64 extensible data'
-    fpin.seek(offset - sizeEndCentDir64Locator - sizeEndCentDir64, 2)
-    data = fpin.read(sizeEndCentDir64)
-    sig, sz, create_version, read_version, disk_num, disk_dir, \
-            dircount, dircount2, dirsize, diroffset = \
-            struct.unpack(structEndArchive64, data)
-    if sig != stringEndArchive64:
-        return endrec
-
-    # Update the original endrec using data from the ZIP64 record
-    endrec[_ECD_SIGNATURE] = sig
-    endrec[_ECD_DISK_NUMBER] = disk_num
-    endrec[_ECD_DISK_START] = disk_dir
-    endrec[_ECD_ENTRIES_THIS_DISK] = dircount
-    endrec[_ECD_ENTRIES_TOTAL] = dircount2
-    endrec[_ECD_SIZE] = dirsize
-    endrec[_ECD_OFFSET] = diroffset
-    return endrec
-
-
-def _EndRecData(fpin):
-    """Return data from the "End of Central Directory" record, or None.
-
-    The data is a list of the nine items in the ZIP "End of central dir"
-    record followed by a tenth item, the file seek offset of this record."""
-
-    # Determine file size
-    fpin.seek(0, 2)
-    filesize = fpin.tell()
-
-    # Check to see if this is ZIP file with no archive comment (the
-    # "end of central directory" structure should be the last item in the
-    # file if this is the case).
-    try:
-        fpin.seek(-sizeEndCentDir, 2)
-    except IOError:
-        return None
-    data = fpin.read()
-    if data[0:4] == stringEndArchive and data[-2:] == b"\000\000":
-        # the signature is correct and there's no comment, unpack structure
-        endrec = struct.unpack(structEndArchive, data)
-        endrec=list(endrec)
-
-        # Append a blank comment and record start offset
-        endrec.append(b"")
-        endrec.append(filesize - sizeEndCentDir)
-
-        # Try to read the "Zip64 end of central directory" structure
-        return _EndRecData64(fpin, -sizeEndCentDir, endrec)
-
-    # Either this is not a ZIP file, or it is a ZIP file with an archive
-    # comment.  Search the end of the file for the "end of central directory"
-    # record signature. The comment is the last item in the ZIP file and may be
-    # up to 64K long.  It is assumed that the "end of central directory" magic
-    # number does not appear in the comment.
-    maxCommentStart = max(filesize - (1 << 16) - sizeEndCentDir, 0)
-    fpin.seek(maxCommentStart, 0)
-    data = fpin.read()
-    start = data.rfind(stringEndArchive)
-    if start >= 0:
-        # found the magic number; attempt to unpack and interpret
-        recData = data[start:start+sizeEndCentDir]
-        endrec = list(struct.unpack(structEndArchive, recData))
-        comment = data[start+sizeEndCentDir:]
-        # check that comment length is correct
-        if endrec[_ECD_COMMENT_SIZE] == len(comment):
-            # Append the archive comment and start offset
-            endrec.append(comment)
-            endrec.append(maxCommentStart + start)
-
-            # Try to read the "Zip64 end of central directory" structure
-            return _EndRecData64(fpin, maxCommentStart + start - filesize,
-                                 endrec)
-
-    # Unable to find a valid end of central directory structure
-    return
-
-
-class ZipInfo (object):
-    """Class with attributes describing each file in the ZIP archive."""
-
-    __slots__ = (
-            'orig_filename',
-            'filename',
-            'date_time',
-            'compress_type',
-            'comment',
-            'extra',
-            'create_system',
-            'create_version',
-            'extract_version',
-            'reserved',
-            'flag_bits',
-            'volume',
-            'internal_attr',
-            'external_attr',
-            'header_offset',
-            'CRC',
-            'compress_size',
-            'file_size',
-            '_raw_time',
-        )
-
-    def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)):
-        self.orig_filename = filename   # Original file name in archive
-
-        # Terminate the file name at the first null byte.  Null bytes in file
-        # names are used as tricks by viruses in archives.
-        null_byte = filename.find(chr(0))
-        if null_byte >= 0:
-            filename = filename[0:null_byte]
-        # This is used to ensure paths in generated ZIP files always use
-        # forward slashes as the directory separator, as required by the
-        # ZIP format specification.
-        if os.sep != "/" and os.sep in filename:
-            filename = filename.replace(os.sep, "/")
-
-        self.filename = filename        # Normalized file name
-        self.date_time = date_time      # year, month, day, hour, min, sec
-        # Standard values:
-        self.compress_type = ZIP_STORED # Type of compression for the file
-        self.comment = b""              # Comment for each file
-        self.extra = b""                # ZIP extra data
-        if sys.platform == 'win32':
-            self.create_system = 0          # System which created ZIP archive
-        else:
-            # Assume everything else is unix-y
-            self.create_system = 3          # System which created ZIP archive
-        self.create_version = 20        # Version which created ZIP archive
-        self.extract_version = 20       # Version needed to extract archive
-        self.reserved = 0               # Must be zero
-        self.flag_bits = 0              # ZIP flag bits
-        self.volume = 0                 # Volume number of file header
-        self.internal_attr = 0          # Internal attributes
-        self.external_attr = 0          # External file attributes
-        # Other attributes are set by class ZipFile:
-        # header_offset         Byte offset to the file header
-        # CRC                   CRC-32 of the uncompressed file
-        # compress_size         Size of the compressed file
-        # file_size             Size of the uncompressed file
-
-    def FileHeader(self):
-        """Return the per-file header as a string."""
-        dt = self.date_time
-        dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
-        dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
-        if self.flag_bits & 0x08:
-            # Set these to zero because we write them after the file data
-            CRC = compress_size = file_size = 0
-        else:
-            CRC = self.CRC
-            compress_size = self.compress_size
-            file_size = self.file_size
-
-        extra = self.extra
-
-        if file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT:
-            # File is larger than what fits into a 4 byte integer,
-            # fall back to the ZIP64 extension
-            fmt = '<HHQQ'
-            extra = extra + struct.pack(fmt,
-                    1, struct.calcsize(fmt)-4, file_size, compress_size)
-            file_size = 0xffffffff
-            compress_size = 0xffffffff
-            self.extract_version = max(45, self.extract_version)
-            self.create_version = max(45, self.extract_version)
-
-        filename, flag_bits = self._encodeFilenameFlags()
-        header = struct.pack(structFileHeader, stringFileHeader,
-                 self.extract_version, self.reserved, flag_bits,
-                 self.compress_type, dostime, dosdate, CRC,
-                 compress_size, file_size,
-                 len(filename), len(extra))
-        return header + filename + extra
-
-    def _encodeFilenameFlags(self):
-        try:
-            return self.filename.encode('ascii'), self.flag_bits
-        except UnicodeEncodeError:
-            return self.filename.encode('utf-8'), self.flag_bits | 0x800
-
-    def _decodeExtra(self):
-        # Try to decode the extra field.
-        extra = self.extra
-        unpack = struct.unpack
-        while extra:
-            tp, ln = unpack('<HH', extra[:4])
-            if tp == 1:
-                if ln >= 24:
-                    counts = unpack('<QQQ', extra[4:28])
-                elif ln == 16:
-                    counts = unpack('<QQ', extra[4:20])
-                elif ln == 8:
-                    counts = unpack('<Q', extra[4:12])
-                elif ln == 0:
-                    counts = ()
-                else:
-                    raise RuntimeError("Corrupt extra field %s"%(ln,))
-
-                idx = 0
-
-                # ZIP64 extension (large files and/or large archives)
-                if self.file_size in (0xffffffffffffffff, 0xffffffff):
-                    self.file_size = counts[idx]
-                    idx += 1
-
-                if self.compress_size == 0xFFFFFFFF:
-                    self.compress_size = counts[idx]
-                    idx += 1
-
-                if self.header_offset == 0xffffffff:
-                    old = self.header_offset
-                    self.header_offset = counts[idx]
-                    idx+=1
-
-            extra = extra[ln+4:]
-
-
-class _ZipDecrypter:
-    """Class to handle decryption of files stored within a ZIP archive.
-
-    ZIP supports a password-based form of encryption. Even though known
-    plaintext attacks have been found against it, it is still useful
-    to be able to get data out of such a file.
-
-    Usage:
-        zd = _ZipDecrypter(mypwd)
-        plain_char = zd(cypher_char)
-        plain_text = map(zd, cypher_text)
-    """
-
-    def _GenerateCRCTable():
-        """Generate a CRC-32 table.
-
-        ZIP encryption uses the CRC32 one-byte primitive for scrambling some
-        internal keys. We noticed that a direct implementation is faster than
-        relying on binascii.crc32().
-        """
-        poly = 0xedb88320
-        table = [0] * 256
-        for i in range(256):
-            crc = i
-            for j in range(8):
-                if crc & 1:
-                    crc = ((crc >> 1) & 0x7FFFFFFF) ^ poly
-                else:
-                    crc = ((crc >> 1) & 0x7FFFFFFF)
-            table[i] = crc
-        return table
-    crctable = _GenerateCRCTable()
-
-    def _crc32(self, ch, crc):
-        """Compute the CRC32 primitive on one byte."""
-        return ((crc >> 8) & 0xffffff) ^ self.crctable[(crc ^ ch) & 0xff]
-
-    def __init__(self, pwd):
-        self.key0 = 305419896
-        self.key1 = 591751049
-        self.key2 = 878082192
-        for p in pwd:
-            self._UpdateKeys(p)
-
-    def _UpdateKeys(self, c):
-        self.key0 = self._crc32(c, self.key0)
-        self.key1 = (self.key1 + (self.key0 & 255)) & 4294967295
-        self.key1 = (self.key1 * 134775813 + 1) & 4294967295
-        self.key2 = self._crc32((self.key1 >> 24) & 255, self.key2)
-
-    def __call__(self, c):
-        """Decrypt a single character."""
-        assert isinstance(c, int)
-        k = self.key2 | 2
-        c = c ^ (((k * (k^1)) >> 8) & 255)
-        self._UpdateKeys(c)
-        return c
-
-class ZipExtFile:
-    """File-like object for reading an archive member.
-       Is returned by ZipFile.open().
-    """
-
-    def __init__(self, fileobj, zipinfo, decrypt=None):
-        self.fileobj = fileobj
-        self.decrypter = decrypt
-        self.bytes_read = 0
-        self.rawbuffer = b''
-        self.readbuffer = b''
-        self.linebuffer = b''
-        self.eof = False
-        self.univ_newlines = False
-        self.nlSeps = (b"\n", )
-        self.lastdiscard = b''
-
-        self.compress_type = zipinfo.compress_type
-        self.compress_size = zipinfo.compress_size
-
-        self.closed  = False
-        self.mode    = "r"
-        self.name = zipinfo.filename
-
-        # read from compressed files in 64k blocks
-        self.compreadsize = 64*1024
-        if self.compress_type == ZIP_DEFLATED:
-            self.dc = zlib.decompressobj(-15)
-        elif self.compress_type == ZIP_BZIP2:
-            self.dc = bz2.BZ2Decompressor()
-            self.compreadsize = 900000
-
-        if hasattr(zipinfo, 'CRC'):
-            self._expected_crc = zipinfo.CRC
-            self._running_crc = crc32(b'') & 0xffffffff
-        else:
-            self._expected_crc = None
-
-    def set_univ_newlines(self, univ_newlines):
-        self.univ_newlines = univ_newlines
-
-        # pick line separator char(s) based on universal newlines flag
-        self.nlSeps = (b"\n", )
-        if self.univ_newlines:
-            self.nlSeps = (b"\r\n", b"\r", b"\n")
-
-    def __iter__(self):
-        return self
-
-    def __next__(self):
-        nextline = self.readline()
-        if not nextline:
-            raise StopIteration()
-
-        return nextline
-
-    def close(self):
-        self.closed = True
-
-    def _checkfornewline(self):
-        nl, nllen = -1, -1
-        if self.linebuffer:
-            # ugly check for cases where half of an \r\n pair was
-            # read on the last pass, and the \r was discarded.  In this
-            # case we just throw away the \n at the start of the buffer.
-            if (self.lastdiscard, self.linebuffer[:1]) == (b'\r', b'\n'):
-                self.linebuffer = self.linebuffer[1:]
-
-            for sep in self.nlSeps:
-                nl = self.linebuffer.find(sep)
-                if nl >= 0:
-                    nllen = len(sep)
-                    return nl, nllen
-
-        return nl, nllen
-
-    def readline(self, size = -1):
-        """Read a line with approx. size. If size is negative,
-           read a whole line.
-        """
-        if size < 0:
-            size = sys.maxsize
-        elif size == 0:
-            return b''
-
-        # check for a newline already in buffer
-        nl, nllen = self._checkfornewline()
-
-        if nl >= 0:
-            # the next line was already in the buffer
-            nl = min(nl, size)
-        else:
-            # no line break in buffer - try to read more
-            size -= len(self.linebuffer)
-            while nl < 0 and size > 0:
-                buf = self.read(min(size, 100))
-                if not buf:
-                    break
-                self.linebuffer += buf
-                size -= len(buf)
-
-                # check for a newline in buffer
-                nl, nllen = self._checkfornewline()
-
-            # we either ran out of bytes in the file, or
-            # met the specified size limit without finding a newline,
-            # so return current buffer
-            if nl < 0:
-                s = self.linebuffer
-                self.linebuffer = b''
-                return s
-
-        buf = self.linebuffer[:nl]
-        self.lastdiscard = self.linebuffer[nl:nl + nllen]
-        self.linebuffer = self.linebuffer[nl + nllen:]
-
-        # line is always returned with \n as newline char (except possibly
-        # for a final incomplete line in the file, which is handled above).
-        return buf + b"\n"
-
-    def readlines(self, sizehint = -1):
-        """Return a list with all (following) lines. The sizehint parameter
-        is ignored in this implementation.
-        """
-        result = []
-        while True:
-            line = self.readline()
-            if not line: break
-            result.append(line)
-        return result
-
-    def _update_crc(self, newdata, eof):
-        # Update the CRC using the given data.
-        if self._expected_crc is None:
-            # No need to compute the CRC if we don't have a reference value
-            return
-        self._running_crc = crc32(newdata, self._running_crc) & 0xffffffff
-        # Check the CRC if we're at the end of the file
-        if eof and self._running_crc != self._expected_crc:
-            raise BadZipfile("Bad CRC-32 for file %r" % self.name)
-
-    def read(self, size = None):
-        # act like file obj and return empty string if size is 0
-        if size == 0:
-            return b''
-
-        # determine read size
-        bytesToRead = self.compress_size - self.bytes_read
-
-        # adjust read size for encrypted files since the first 12 bytes
-        # are for the encryption/password information
-        if self.decrypter is not None:
-            bytesToRead -= 12
-
-        if size is not None and size >= 0:
-            if self.compress_type == ZIP_STORED:
-                lr = len(self.readbuffer)
-                bytesToRead = min(bytesToRead, size - lr)
-            else:
-                if len(self.readbuffer) > size:
-                    # the user has requested fewer bytes than we've already
-                    # pulled through the decompressor; don't read any more
-                    bytesToRead = 0
-                else:
-                    # user will use up the buffer, so read some more
-                    lr = len(self.rawbuffer)
-                    bytesToRead = min(bytesToRead, self.compreadsize - lr)
-
-        # avoid reading past end of file contents
-        if bytesToRead + self.bytes_read > self.compress_size:
-            bytesToRead = self.compress_size - self.bytes_read
-
-        # try to read from file (if necessary)
-        if bytesToRead > 0:
-            data = self.fileobj.read(bytesToRead)
-            self.bytes_read += len(data)
-            try:
-                self.rawbuffer += data
-            except:
-                print(repr(self.fileobj), repr(self.rawbuffer),
-                      repr(data))
-                raise
-
-            # handle contents of raw buffer
-            if self.rawbuffer:
-                newdata = self.rawbuffer
-                self.rawbuffer = b''
-
-                # decrypt new data if we were given an object to handle that
-                if newdata and self.decrypter is not None:
-                    newdata = bytes(map(self.decrypter, newdata))
-
-                # decompress newly read data if necessary
-                if newdata and self.compress_type != ZIP_STORED:
-                    newdata = self.dc.decompress(newdata)
-                    self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
-                    if self.eof and len(self.rawbuffer) == 0:
-                        # we're out of raw bytes (both from the file and
-                        # the local buffer); flush just to make sure the
-                        # decompressor is done
-                        try:
-                            newdata += self.dc.flush()
-                        except AttributeError:
-                            pass
-                        # prevent decompressor from being used again
-                        self.dc = None
-
-                self._update_crc(newdata, eof=(
-                    self.compress_size == self.bytes_read and
-                    len(self.rawbuffer) == 0))
-                self.readbuffer += newdata
-
-        # return what the user asked for
-        if size is None or len(self.readbuffer) <= size:
-            data = self.readbuffer
-            self.readbuffer = b''
-        else:
-            data = self.readbuffer[:size]
-            self.readbuffer = self.readbuffer[size:]
-
-        return data
-
-
-class ZipFile:
-    """ Class with methods to open, read, write, close, list zip files.
-
-    z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=False)
-
-    file: Either the path to the file, or a file-like object.
-          If it is a path, the file will be opened and closed by ZipFile.
-    mode: The mode can be either read "r", write "w" or append "a".
-    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
-                 or ZIP_BZIP2 (requires bz2).
-    allowZip64: if True ZipFile will create files with ZIP64 extensions when
-                needed, otherwise it will raise an exception when this would
-                be necessary.
-
-    """
-
-    fp = None                   # Set here since __del__ checks it
-
-    def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=False):
-        """Open the ZIP file with mode read "r", write "w" or append "a"."""
-        if mode not in ("r", "w", "a"):
-            raise RuntimeError('ZipFile() requires mode "r", "w", or "a"')
-
-        if compression == ZIP_STORED:
-            pass
-        elif compression == ZIP_DEFLATED:
-            if not zlib:
-                raise RuntimeError(
-                      "Compression requires the (missing) zlib module")
-        elif compression == ZIP_BZIP2:
-            if not bz2:
-                raise RuntimeError(
-                      "Compression requires the (missing) bz2 module")
-        else:
-            raise RuntimeError("That compression method is not supported")
-
-        self._allowZip64 = allowZip64
-        self._didModify = False
-        self.debug = 0  # Level of printing: 0 through 3
-        self.NameToInfo = {}    # Find file info given name
-        self.filelist = []      # List of ZipInfo instances for archive
-        self.compression = compression  # Method of compression
-        self.mode = key = mode.replace('b', '')[0]
-        self.pwd = None
-        self.comment = b''
-
-        # Check if we were passed a file-like object
-        if isinstance(file, str):
-            # No, it's a filename
-            self._filePassed = 0
-            self.filename = file
-            modeDict = {'r' : 'rb', 'w': 'wb', 'a' : 'r+b'}
-            try:
-                self.fp = io.open(file, modeDict[mode])
-            except IOError:
-                if mode == 'a':
-                    mode = key = 'w'
-                    self.fp = io.open(file, modeDict[mode])
-                else:
-                    raise
-        else:
-            self._filePassed = 1
-            self.fp = file
-            self.filename = getattr(file, 'name', None)
-
-        if key == 'r':
-            self._GetContents()
-        elif key == 'w':
-            # set the modified flag so central directory gets written
-            # even if no files are added to the archive
-            self._didModify = True
-        elif key == 'a':
-            try:
-                # See if file is a zip file
-                self._RealGetContents()
-                # seek to start of directory and overwrite
-                self.fp.seek(self.start_dir, 0)
-            except BadZipfile:
-                # file is not a zip file, just append
-                self.fp.seek(0, 2)
-
-                # set the modified flag so central directory gets written
-                # even if no files are added to the archive
-                self._didModify = True
-        else:
-            if not self._filePassed:
-                self.fp.close()
-                self.fp = None
-            raise RuntimeError('Mode must be "r", "w" or "a"')
-
-    def _GetContents(self):
-        """Read the directory, making sure we close the file if the format
-        is bad."""
-        try:
-            self._RealGetContents()
-        except BadZipfile:
-            if not self._filePassed:
-                self.fp.close()
-                self.fp = None
-            raise
-
-    def _RealGetContents(self):
-        """Read in the table of contents for the ZIP file."""
-        fp = self.fp
-        try:
-            endrec = _EndRecData(fp)
-        except IOError:
-            raise BadZipfile("File is not a zip file")
-        if not endrec:
-            raise BadZipfile("File is not a zip file")
-        if self.debug > 1:
-            print(endrec)
-        size_cd = endrec[_ECD_SIZE]             # bytes in central directory
-        offset_cd = endrec[_ECD_OFFSET]         # offset of central directory
-        self.comment = endrec[_ECD_COMMENT]     # archive comment
-
-        # "concat" is zero, unless zip was concatenated to another file
-        concat = endrec[_ECD_LOCATION] - size_cd - offset_cd
-        if endrec[_ECD_SIGNATURE] == stringEndArchive64:
-            # If Zip64 extension structures are present, account for them
-            concat -= (sizeEndCentDir64 + sizeEndCentDir64Locator)
-
-        if self.debug > 2:
-            inferred = concat + offset_cd
-            print("given, inferred, offset", offset_cd, inferred, concat)
-        # self.start_dir:  Position of start of central directory
-        self.start_dir = offset_cd + concat
-        fp.seek(self.start_dir, 0)
-        data = fp.read(size_cd)
-        fp = io.BytesIO(data)
-        total = 0
-        while total < size_cd:
-            centdir = fp.read(sizeCentralDir)
-            if centdir[0:4] != stringCentralDir:
-                raise BadZipfile("Bad magic number for central directory")
-            centdir = struct.unpack(structCentralDir, centdir)
-            if self.debug > 2:
-                print(centdir)
-            filename = fp.read(centdir[_CD_FILENAME_LENGTH])
-            flags = centdir[5]
-            if flags & 0x800:
-                # UTF-8 file names extension
-                filename = filename.decode('utf-8')
-            else:
-                # Historical ZIP filename encoding
-                filename = filename.decode('cp437')
-            # Create ZipInfo instance to store file information
-            x = ZipInfo(filename)
-            x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
-            x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
-            x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET]
-            (x.create_version, x.create_system, x.extract_version, x.reserved,
-                x.flag_bits, x.compress_type, t, d,
-                x.CRC, x.compress_size, x.file_size) = centdir[1:12]
-            x.volume, x.internal_attr, x.external_attr = centdir[15:18]
-            # Convert date/time code to (year, month, day, hour, min, sec)
-            x._raw_time = t
-            x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
-                                     t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
-
-            x._decodeExtra()
-            x.header_offset = x.header_offset + concat
-            self.filelist.append(x)
-            self.NameToInfo[x.filename] = x
-
-            # update total bytes read from central directory
-            total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH]
-                     + centdir[_CD_EXTRA_FIELD_LENGTH]
-                     + centdir[_CD_COMMENT_LENGTH])
-
-            if self.debug > 2:
-                print("total", total)
-
-
-    def namelist(self):
-        """Return a list of file names in the archive."""
-        l = []
-        for data in self.filelist:
-            l.append(data.filename)
-        return l
-
-    def infolist(self):
-        """Return a list of class ZipInfo instances for files in the
-        archive."""
-        return self.filelist
-
-    def printdir(self, file=None):
-        """Print a table of contents for the zip file."""
-        print("%-46s %19s %12s" % ("File Name", "Modified    ", "Size"),
-              file=file)
-        for zinfo in self.filelist:
-            date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]
-            print("%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size),
-                  file=file)
-
-    def testzip(self):
-        """Read all the files and check the CRC."""
-        chunk_size = 2 ** 20
-        for zinfo in self.filelist:
-            try:
-                # Read by chunks, to avoid an OverflowError or a
-                # MemoryError with very large embedded files.
-                f = self.open(zinfo.filename, "r")
-                while f.read(chunk_size):     # Check CRC-32
-                    pass
-            except BadZipfile:
-                return zinfo.filename
-
-    def getinfo(self, name):
-        """Return the instance of ZipInfo given 'name'."""
-        info = self.NameToInfo.get(name)
-        if info is None:
-            raise KeyError(
-                'There is no item named %r in the archive' % name)
-
-        return info
-
-    def setpassword(self, pwd):
-        """Set default password for encrypted files."""
-        assert isinstance(pwd, bytes)
-        self.pwd = pwd
-
-    def read(self, name, pwd=None):
-        """Return file bytes (as a string) for name."""
-        return self.open(name, "r", pwd).read()
-
-    def open(self, name, mode="r", pwd=None):
-        """Return file-like object for 'name'."""
-        if mode not in ("r", "U", "rU"):
-            raise RuntimeError('open() requires mode "r", "U", or "rU"')
-        if not self.fp:
-            raise RuntimeError(
-                  "Attempt to read ZIP archive that was already closed")
-
-        # Only open a new file for instances where we were not
-        # given a file object in the constructor
-        if self._filePassed:
-            zef_file = self.fp
-        else:
-            zef_file = io.open(self.filename, 'rb')
-
-        # Make sure we have an info object
-        if isinstance(name, ZipInfo):
-            # 'name' is already an info object
-            zinfo = name
-        else:
-            # Get info object for name
-            zinfo = self.getinfo(name)
-
-        zef_file.seek(zinfo.header_offset, 0)
-
-        # Skip the file header:
-        fheader = zef_file.read(sizeFileHeader)
-        if fheader[0:4] != stringFileHeader:
-            raise BadZipfile("Bad magic number for file header")
-
-        fheader = struct.unpack(structFileHeader, fheader)
-        fname = zef_file.read(fheader[_FH_FILENAME_LENGTH])
-        if fheader[_FH_EXTRA_FIELD_LENGTH]:
-            zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
-
-        if fname != zinfo.orig_filename.encode("utf-8"):
-            raise BadZipfile(
-                  'File name in directory %r and header %r differ.'
-                  % (zinfo.orig_filename, fname))
-
-        # check for encrypted flag & handle password
-        is_encrypted = zinfo.flag_bits & 0x1
-        zd = None
-        if is_encrypted:
-            if not pwd:
-                pwd = self.pwd
-            if not pwd:
-                raise RuntimeError("File %s is encrypted, "
-                                   "password required for extraction" % name)
-
-            zd = _ZipDecrypter(pwd)
-            # The first 12 bytes in the cypher stream is an encryption header
-            #  used to strengthen the algorithm. The first 11 bytes are
-            #  completely random, while the 12th contains the MSB of the CRC,
-            #  or the MSB of the file time depending on the header type
-            #  and is used to check the correctness of the password.
-            bytes = zef_file.read(12)
-            h = list(map(zd, bytes[0:12]))
-            if zinfo.flag_bits & 0x8:
-                # compare against the file type from extended local headers
-                check_byte = (zinfo._raw_time >> 8) & 0xff
-            else:
-                # compare against the CRC otherwise
-                check_byte = (zinfo.CRC >> 24) & 0xff
-            if h[11] != check_byte:
-                raise RuntimeError("Bad password for file", name)
-
-        # build and return a ZipExtFile
-        if zd is None:
-            zef = ZipExtFile(zef_file, zinfo)
-        else:
-            zef = ZipExtFile(zef_file, zinfo, zd)
-
-        # set universal newlines on ZipExtFile if necessary
-        if "U" in mode:
-            zef.set_univ_newlines(True)
-        return zef
-
-    def extract(self, member, path=None, pwd=None):
-        """Extract a member from the archive to the current working directory,
-           using its full name. Its file information is extracted as accurately
-           as possible. `member' may be a filename or a ZipInfo object. You can
-           specify a different directory using `path'.
-        """
-        if not isinstance(member, ZipInfo):
-            member = self.getinfo(member)
-
-        if path is None:
-            path = os.getcwd()
-
-        return self._extract_member(member, path, pwd)
-
-    def extractall(self, path=None, members=None, pwd=None):
-        """Extract all members from the archive to the current working
-           directory. `path' specifies a different directory to extract to.
-           `members' is optional and must be a subset of the list returned
-           by namelist().
-        """
-        if members is None:
-            members = self.namelist()
-
-        for zipinfo in members:
-            self.extract(zipinfo, path, pwd)
-
-    def _extract_member(self, member, targetpath, pwd):
-        """Extract the ZipInfo object 'member' to a physical
-           file on the path targetpath.
-        """
-        # build the destination pathname, replacing
-        # forward slashes to platform specific separators.
-        # Strip trailing path separator, unless it represents the root.
-        if (targetpath[-1:] in (os.path.sep, os.path.altsep)
-            and len(os.path.splitdrive(targetpath)[1]) > 1):
-            targetpath = targetpath[:-1]
-
-        # don't include leading "/" from file name if present
-        if member.filename[0] == '/':
-            targetpath = os.path.join(targetpath, member.filename[1:])
-        else:
-            targetpath = os.path.join(targetpath, member.filename)
-
-        targetpath = os.path.normpath(targetpath)
-
-        # Create all upper directories if necessary.
-        upperdirs = os.path.dirname(targetpath)
-        if upperdirs and not os.path.exists(upperdirs):
-            os.makedirs(upperdirs)
-
-        if member.filename[-1] == '/':
-            if not os.path.isdir(targetpath):
-                os.mkdir(targetpath)
-            return targetpath
-
-        source = self.open(member, pwd=pwd)
-        target = open(targetpath, "wb")
-        shutil.copyfileobj(source, target)
-        source.close()
-        target.close()
-
-        return targetpath
-
-    def _writecheck(self, zinfo):
-        """Check for errors before writing a file to the archive."""
-        if zinfo.filename in self.NameToInfo:
-            if self.debug:      # Warning for duplicate names
-                print("Duplicate name:", zinfo.filename)
-        if self.mode not in ("w", "a"):
-            raise RuntimeError('write() requires mode "w" or "a"')
-        if not self.fp:
-            raise RuntimeError(
-                  "Attempt to write ZIP archive that was already closed")
-        if zinfo.compress_type == ZIP_DEFLATED and not zlib:
-            raise RuntimeError(
-                  "Compression requires the (missing) zlib module")
-        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
-            raise RuntimeError(
-                  "Compression requires the (missing) bz2 module")
-        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
-            raise RuntimeError("That compression method is not supported")
-        if zinfo.file_size > ZIP64_LIMIT:
-            if not self._allowZip64:
-                raise LargeZipFile("Filesize would require ZIP64 extensions")
-        if zinfo.header_offset > ZIP64_LIMIT:
-            if not self._allowZip64:
-                raise LargeZipFile(
-                      "Zipfile size would require ZIP64 extensions")
-
-    def write(self, filename, arcname=None, compress_type=None):
-        """Put the bytes from filename into the archive under the name
-        arcname."""
-        if not self.fp:
-            raise RuntimeError(
-                  "Attempt to write to ZIP archive that was already closed")
-
-        st = os.stat(filename)
-        isdir = stat.S_ISDIR(st.st_mode)
-        mtime = time.localtime(st.st_mtime)
-        date_time = mtime[0:6]
-        # Create ZipInfo instance to store file information
-        if arcname is None:
-            arcname = filename
-        arcname = os.path.normpath(os.path.splitdrive(arcname)[1])
-        while arcname[0] in (os.sep, os.altsep):
-            arcname = arcname[1:]
-        if isdir:
-            arcname += '/'
-        zinfo = ZipInfo(arcname, date_time)
-        zinfo.external_attr = (st[0] & 0xFFFF) << 16      # Unix attributes
-        if compress_type is None:
-            zinfo.compress_type = self.compression
-        else:
-            zinfo.compress_type = compress_type
-
-        zinfo.file_size = st.st_size
-        zinfo.flag_bits = 0x00
-        zinfo.header_offset = self.fp.tell()    # Start of header bytes
-
-        self._writecheck(zinfo)
-        self._didModify = True
-
-        if isdir:
-            zinfo.file_size = 0
-            zinfo.compress_size = 0
-            zinfo.CRC = 0
-            self.filelist.append(zinfo)
-            self.NameToInfo[zinfo.filename] = zinfo
-            self.fp.write(zinfo.FileHeader())
-            return
-
-        with open(filename, "rb") as fp:
-            # Must overwrite CRC and sizes with correct data later
-            zinfo.CRC = CRC = 0
-            zinfo.compress_size = compress_size = 0
-            zinfo.file_size = file_size = 0
-            self.fp.write(zinfo.FileHeader())
-            if zinfo.compress_type == ZIP_DEFLATED:
-                cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                     zlib.DEFLATED, -15)
-            elif zinfo.compress_type == ZIP_BZIP2:
-                cmpr = bz2.BZ2Compressor()
-            else:
-                cmpr = None
-            while 1:
-                buf = fp.read(1024 * 8)
-                if not buf:
-                    break
-                file_size = file_size + len(buf)
-                CRC = crc32(buf, CRC) & 0xffffffff
-                if cmpr:
-                    buf = cmpr.compress(buf)
-                    compress_size = compress_size + len(buf)
-                self.fp.write(buf)
-        if cmpr:
-            buf = cmpr.flush()
-            compress_size = compress_size + len(buf)
-            self.fp.write(buf)
-            zinfo.compress_size = compress_size
-        else:
-            zinfo.compress_size = file_size
-        zinfo.CRC = CRC
-        zinfo.file_size = file_size
-        # Seek backwards and write CRC and file sizes
-        position = self.fp.tell()       # Preserve current position in file
-        self.fp.seek(zinfo.header_offset + 14, 0)
-        self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
-              zinfo.file_size))
-        self.fp.seek(position, 0)
-        self.filelist.append(zinfo)
-        self.NameToInfo[zinfo.filename] = zinfo
-
-    def writestr(self, zinfo_or_arcname, data):
-        """Write a file into the archive.  The contents is 'data', which
-        may be either a 'str' or a 'bytes' instance; if it is a 'str',
-        it is encoded as UTF-8 first.
-        'zinfo_or_arcname' is either a ZipInfo instance or
-        the name of the file in the archive."""
-        if isinstance(data, str):
-            data = data.encode("utf-8")
-        if not isinstance(zinfo_or_arcname, ZipInfo):
-            zinfo = ZipInfo(filename=zinfo_or_arcname,
-                            date_time=time.localtime(time.time())[:6])
-            zinfo.compress_type = self.compression
-            zinfo.external_attr = 0o600 << 16
-        else:
-            zinfo = zinfo_or_arcname
-
-        if not self.fp:
-            raise RuntimeError(
-                  "Attempt to write to ZIP archive that was already closed")
-
-        zinfo.file_size = len(data)            # Uncompressed size
-        zinfo.header_offset = self.fp.tell()    # Start of header data
-        self._writecheck(zinfo)
-        self._didModify = True
-        zinfo.CRC = crc32(data) & 0xffffffff       # CRC-32 checksum
-        if zinfo.compress_type == ZIP_DEFLATED:
-            co = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                 zlib.DEFLATED, -15)
-            data = co.compress(data) + co.flush()
-            zinfo.compress_size = len(data)    # Compressed size
-        elif zinfo.compress_type == ZIP_BZIP2:
-            co = bz2.BZ2Compressor()
-            data = co.compress(data) + co.flush()
-            zinfo.compress_size = len(data)    # Compressed size
-        else:
-            zinfo.compress_size = zinfo.file_size
-        zinfo.header_offset = self.fp.tell()    # Start of header data
-        self.fp.write(zinfo.FileHeader())
-        self.fp.write(data)
-        self.fp.flush()
-        if zinfo.flag_bits & 0x08:
-            # Write CRC and file sizes after the file data
-            self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
-                  zinfo.file_size))
-        self.filelist.append(zinfo)
-        self.NameToInfo[zinfo.filename] = zinfo
-
-    def __del__(self):
-        """Call the "close()" method in case the user forgot."""
-        self.close()
-
-    def close(self):
-        """Close the file, and for mode "w" and "a" write the ending
-        records."""
-        if self.fp is None:
-            return
-
-        if self.mode in ("w", "a") and self._didModify: # write ending records
-            count = 0
-            pos1 = self.fp.tell()
-            for zinfo in self.filelist:         # write central directory
-                count = count + 1
-                dt = zinfo.date_time
-                dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
-                dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
-                extra = []
-                if zinfo.file_size > ZIP64_LIMIT \
-                        or zinfo.compress_size > ZIP64_LIMIT:
-                    extra.append(zinfo.file_size)
-                    extra.append(zinfo.compress_size)
-                    file_size = 0xffffffff
-                    compress_size = 0xffffffff
-                else:
-                    file_size = zinfo.file_size
-                    compress_size = zinfo.compress_size
-
-                if zinfo.header_offset > ZIP64_LIMIT:
-                    extra.append(zinfo.header_offset)
-                    header_offset = 0xffffffff
-                else:
-                    header_offset = zinfo.header_offset
-
-                extra_data = zinfo.extra
-                if extra:
-                    # Append a ZIP64 field to the extra's
-                    extra_data = struct.pack(
-                            '<HH' + 'Q'*len(extra),
-                            1, 8*len(extra), *extra) + extra_data
-
-                    extract_version = max(45, zinfo.extract_version)
-                    create_version = max(45, zinfo.create_version)
-                else:
-                    extract_version = zinfo.extract_version
-                    create_version = zinfo.create_version
-
-                try:
-                    filename, flag_bits = zinfo._encodeFilenameFlags()
-                    centdir = struct.pack(structCentralDir,
-                        stringCentralDir, create_version,
-                        zinfo.create_system, extract_version, zinfo.reserved,
-                        flag_bits, zinfo.compress_type, dostime, dosdate,
-                        zinfo.CRC, compress_size, file_size,
-                        len(filename), len(extra_data), len(zinfo.comment),
-                        0, zinfo.internal_attr, zinfo.external_attr,
-                        header_offset)
-                except DeprecationWarning:
-                    print((structCentralDir, stringCentralDir, create_version,
-                        zinfo.create_system, extract_version, zinfo.reserved,
-                        zinfo.flag_bits, zinfo.compress_type, dostime, dosdate,
-                        zinfo.CRC, compress_size, file_size,
-                        len(zinfo.filename), len(extra_data), len(zinfo.comment),
-                        0, zinfo.internal_attr, zinfo.external_attr,
-                        header_offset), file=sys.stderr)
-                    raise
-                self.fp.write(centdir)
-                self.fp.write(filename)
-                self.fp.write(extra_data)
-                self.fp.write(zinfo.comment)
-
-            pos2 = self.fp.tell()
-            # Write end-of-zip-archive record
-            centDirCount = count
-            centDirSize = pos2 - pos1
-            centDirOffset = pos1
-            if (centDirCount >= ZIP_FILECOUNT_LIMIT or
-                centDirOffset > ZIP64_LIMIT or
-                centDirSize > ZIP64_LIMIT):
-                # Need to write the ZIP64 end-of-archive records
-                zip64endrec = struct.pack(
-                        structEndArchive64, stringEndArchive64,
-                        44, 45, 45, 0, 0, centDirCount, centDirCount,
-                        centDirSize, centDirOffset)
-                self.fp.write(zip64endrec)
-
-                zip64locrec = struct.pack(
-                        structEndArchive64Locator,
-                        stringEndArchive64Locator, 0, pos2, 1)
-                self.fp.write(zip64locrec)
-                centDirCount = min(centDirCount, 0xFFFF)
-                centDirSize = min(centDirSize, 0xFFFFFFFF)
-                centDirOffset = min(centDirOffset, 0xFFFFFFFF)
-
-            # check for valid comment length
-            if len(self.comment) >= ZIP_MAX_COMMENT:
-                if self.debug > 0:
-                    msg = 'Archive comment is too long; truncating to %d bytes' \
-                          % ZIP_MAX_COMMENT
-                self.comment = self.comment[:ZIP_MAX_COMMENT]
-
-            endrec = struct.pack(structEndArchive, stringEndArchive,
-                                 0, 0, centDirCount, centDirCount,
-                                 centDirSize, centDirOffset, len(self.comment))
-            self.fp.write(endrec)
-            self.fp.write(self.comment)
-            self.fp.flush()
-
-        if not self._filePassed:
-            self.fp.close()
-        self.fp = None
-
-
-class PyZipFile(ZipFile):
-    """Class to create ZIP archives with Python library files and packages."""
-
-    def writepy(self, pathname, basename=""):
-        """Add all files from "pathname" to the ZIP archive.
-
-        If pathname is a package directory, search the directory and
-        all package subdirectories recursively for all *.py and enter
-        the modules into the archive.  If pathname is a plain
-        directory, listdir *.py and enter all modules.  Else, pathname
-        must be a Python *.py file and the module will be put into the
-        archive.  Added modules are always module.pyo or module.pyc.
-        This method will compile the module.py into module.pyc if
-        necessary.
-        """
-        dir, name = os.path.split(pathname)
-        if os.path.isdir(pathname):
-            initname = os.path.join(pathname, "__init__.py")
-            if os.path.isfile(initname):
-                # This is a package directory, add it
-                if basename:
-                    basename = "%s/%s" % (basename, name)
-                else:
-                    basename = name
-                if self.debug:
-                    print("Adding package in", pathname, "as", basename)
-                fname, arcname = self._get_codename(initname[0:-3], basename)
-                if self.debug:
-                    print("Adding", arcname)
-                self.write(fname, arcname)
-                dirlist = os.listdir(pathname)
-                dirlist.remove("__init__.py")
-                # Add all *.py files and package subdirectories
-                for filename in dirlist:
-                    path = os.path.join(pathname, filename)
-                    root, ext = os.path.splitext(filename)
-                    if os.path.isdir(path):
-                        if os.path.isfile(os.path.join(path, "__init__.py")):
-                            # This is a package directory, add it
-                            self.writepy(path, basename)  # Recursive call
-                    elif ext == ".py":
-                        fname, arcname = self._get_codename(path[0:-3],
-                                         basename)
-                        if self.debug:
-                            print("Adding", arcname)
-                        self.write(fname, arcname)
-            else:
-                # This is NOT a package directory, add its files at top level
-                if self.debug:
-                    print("Adding files from directory", pathname)
-                for filename in os.listdir(pathname):
-                    path = os.path.join(pathname, filename)
-                    root, ext = os.path.splitext(filename)
-                    if ext == ".py":
-                        fname, arcname = self._get_codename(path[0:-3],
-                                         basename)
-                        if self.debug:
-                            print("Adding", arcname)
-                        self.write(fname, arcname)
-        else:
-            if pathname[-3:] != ".py":
-                raise RuntimeError(
-                      'Files added with writepy() must end with ".py"')
-            fname, arcname = self._get_codename(pathname[0:-3], basename)
-            if self.debug:
-                print("Adding file", arcname)
-            self.write(fname, arcname)
-
-    def _get_codename(self, pathname, basename):
-        """Return (filename, archivename) for the path.
-
-        Given a module name path, return the correct file path and
-        archive name, compiling if necessary.  For example, given
-        /python/lib/string, return (/python/lib/string.pyc, string).
-        """
-        file_py  = pathname + ".py"
-        file_pyc = pathname + ".pyc"
-        file_pyo = pathname + ".pyo"
-        if os.path.isfile(file_pyo) and \
-                            os.stat(file_pyo).st_mtime >= os.stat(file_py).st_mtime:
-            fname = file_pyo    # Use .pyo file
-        elif not os.path.isfile(file_pyc) or \
-             os.stat(file_pyc).st_mtime < os.stat(file_py).st_mtime:
-            import py_compile
-            if self.debug:
-                print("Compiling", file_py)
-            try:
-                py_compile.compile(file_py, file_pyc, None, True)
-            except py_compile.PyCompileError as err:
-                print(err.msg)
-            fname = file_pyc
-        else:
-            fname = file_pyc
-        archivename = os.path.split(fname)[1]
-        if basename:
-            archivename = "%s/%s" % (basename, archivename)
-        return (fname, archivename)
-
-
-def main(args = None):
-    import textwrap
-    USAGE=textwrap.dedent("""\
-        Usage:
-            zipfile.py -l zipfile.zip        # Show listing of a zipfile
-            zipfile.py -t zipfile.zip        # Test if a zipfile is valid
-            zipfile.py -e zipfile.zip target # Extract zipfile into target dir
-            zipfile.py -c zipfile.zip src ... # Create zipfile from sources
-        """)
-    if args is None:
-        args = sys.argv[1:]
-
-    if not args or args[0] not in ('-l', '-c', '-e', '-t'):
-        print(USAGE)
-        sys.exit(1)
-
-    if args[0] == '-l':
-        if len(args) != 2:
-            print(USAGE)
-            sys.exit(1)
-        zf = ZipFile(args[1], 'r')
-        zf.printdir()
-        zf.close()
-
-    elif args[0] == '-t':
-        if len(args) != 2:
-            print(USAGE)
-            sys.exit(1)
-        zf = ZipFile(args[1], 'r')
-        badfile = zf.testzip()
-        if badfile:
-            print("The following enclosed file is corrupted: {!r}".format(badfile))
-        print("Done testing")
-
-    elif args[0] == '-e':
-        if len(args) != 3:
-            print(USAGE)
-            sys.exit(1)
-
-        zf = ZipFile(args[1], 'r')
-        out = args[2]
-        for path in zf.namelist():
-            if path.startswith('./'):
-                tgt = os.path.join(out, path[2:])
-            else:
-                tgt = os.path.join(out, path)
-
-            tgtdir = os.path.dirname(tgt)
-            if not os.path.exists(tgtdir):
-                os.makedirs(tgtdir)
-            with open(tgt, 'wb') as fp:
-                fp.write(zf.read(path))
-        zf.close()
-
-    elif args[0] == '-c':
-        if len(args) < 3:
-            print(USAGE)
-            sys.exit(1)
-
-        def addToZip(zf, path, zippath):
-            if os.path.isfile(path):
-                zf.write(path, zippath, ZIP_DEFLATED)
-            elif os.path.isdir(path):
-                for nm in os.listdir(path):
-                    addToZip(zf,
-                            os.path.join(path, nm), os.path.join(zippath, nm))
-            # else: ignore
-
-        zf = ZipFile(args[1], 'w', allowZip64=True)
-        for src in args[2:]:
-            addToZip(zf, src, os.path.basename(src))
-
-        zf.close()
-
-if __name__ == "__main__":
-    main()
--- a/2.00/zipfile313.diff	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,126 +0,0 @@
---- /usr/local/lib/python3.1/zipfile.py	2010-11-29 00:59:28.000000000 +0000
-+++ zipfile313.py	2010-11-29 01:22:19.000000000 +0000
-@@ -3,6 +3,7 @@
- 
- XXX references to utf-8 need further investigation.
- """
-+# Improved by Chortos-2 in 2010 (added bzip2 support)
- import struct, os, time, sys, shutil
- import binascii, io, stat
- 
-@@ -13,8 +14,13 @@
-     zlib = None
-     crc32 = binascii.crc32
- 
-+try:
-+    import bz2 # We may need its compression method
-+except ImportError:
-+    bz2 = None
-+
- __all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
--           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile" ]
-+           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
- 
- class BadZipfile(Exception):
-     pass
-@@ -35,6 +41,7 @@
- # constants for Zip file compression methods
- ZIP_STORED = 0
- ZIP_DEFLATED = 8
-+ZIP_BZIP2 = 12
- # Other ZIP compression methods not supported
- 
- # Below are some formats and associated data for reading/writing headers using
-@@ -477,6 +484,9 @@
-         self.compreadsize = 64*1024
-         if self.compress_type == ZIP_DEFLATED:
-             self.dc = zlib.decompressobj(-15)
-+        elif self.compress_type == ZIP_BZIP2:
-+            self.dc = bz2.BZ2Decompressor()
-+            self.compreadsize = 900000
- 
-         if hasattr(zipinfo, 'CRC'):
-             self._expected_crc = zipinfo.CRC
-@@ -604,7 +614,7 @@
-             if self.compress_type == ZIP_STORED:
-                 lr = len(self.readbuffer)
-                 bytesToRead = min(bytesToRead, size - lr)
--            elif self.compress_type == ZIP_DEFLATED:
-+            else:
-                 if len(self.readbuffer) > size:
-                     # the user has requested fewer bytes than we've already
-                     # pulled through the decompressor; don't read any more
-@@ -639,14 +649,17 @@
-                     newdata = bytes(map(self.decrypter, newdata))
- 
-                 # decompress newly read data if necessary
--                if newdata and self.compress_type == ZIP_DEFLATED:
-+                if newdata and self.compress_type != ZIP_STORED:
-                     newdata = self.dc.decompress(newdata)
--                    self.rawbuffer = self.dc.unconsumed_tail
-+                    self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
-                     if self.eof and len(self.rawbuffer) == 0:
-                         # we're out of raw bytes (both from the file and
-                         # the local buffer); flush just to make sure the
-                         # decompressor is done
--                        newdata += self.dc.flush()
-+                        try:
-+                            newdata += self.dc.flush()
-+                        except AttributeError:
-+                            pass
-                         # prevent decompressor from being used again
-                         self.dc = None
- 
-@@ -674,7 +687,8 @@
-     file: Either the path to the file, or a file-like object.
-           If it is a path, the file will be opened and closed by ZipFile.
-     mode: The mode can be either read "r", write "w" or append "a".
--    compression: ZIP_STORED (no compression) or ZIP_DEFLATED (requires zlib).
-+    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
-+                 or ZIP_BZIP2 (requires bz2).
-     allowZip64: if True ZipFile will create files with ZIP64 extensions when
-                 needed, otherwise it will raise an exception when this would
-                 be necessary.
-@@ -694,6 +708,10 @@
-             if not zlib:
-                 raise RuntimeError(
-                       "Compression requires the (missing) zlib module")
-+        elif compression == ZIP_BZIP2:
-+            if not bz2:
-+                raise RuntimeError(
-+                      "Compression requires the (missing) bz2 module")
-         else:
-             raise RuntimeError("That compression method is not supported")
- 
-@@ -1041,7 +1059,10 @@
-         if zinfo.compress_type == ZIP_DEFLATED and not zlib:
-             raise RuntimeError(
-                   "Compression requires the (missing) zlib module")
--        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED):
-+        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
-+            raise RuntimeError(
-+                  "Compression requires the (missing) bz2 module")
-+        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
-             raise RuntimeError("That compression method is not supported")
-         if zinfo.file_size > ZIP64_LIMIT:
-             if not self._allowZip64:
-@@ -1102,6 +1123,8 @@
-             if zinfo.compress_type == ZIP_DEFLATED:
-                 cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
-                      zlib.DEFLATED, -15)
-+            elif zinfo.compress_type == ZIP_BZIP2:
-+                cmpr = bz2.BZ2Compressor()
-             else:
-                 cmpr = None
-             while 1:
-@@ -1162,6 +1185,10 @@
-                  zlib.DEFLATED, -15)
-             data = co.compress(data) + co.flush()
-             zinfo.compress_size = len(data)    # Compressed size
-+        elif zinfo.compress_type == ZIP_BZIP2:
-+            co = bz2.BZ2Compressor()
-+            data = co.compress(data) + co.flush()
-+            zinfo.compress_size = len(data)    # Compressed size
-         else:
-             zinfo.compress_size = zinfo.file_size
-         zinfo.header_offset = self.fp.tell()    # Start of header data
--- a/publish.sh	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,11 +0,0 @@
-#! /bin/sh
-
-VERSION=`hg summary | grep '^parent' | sed -En 's/^parent: [0-9]*:([0-9a-f]+) .*$/\1/p'`
-if [ -z "$VERSION" ]
-then
-	echo The current Mercurial changeset could not be determined. >&2
-	exit 1
-fi
-
-sed 's/$$REV$\$/hg '"$VERSION/" test-vcs.py >test.py
-chmod +x test.py
\ No newline at end of file
--- a/test-vcs.py	Sun Dec 19 23:12:11 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,969 +0,0 @@
-#! /usr/bin/python
-# Copyright (c) 2009-2010 Chortos-2 <chortos@inbox.lv>
-
-import os, sys, shutil, time, subprocess, filecmp, optparse, signal, tempfile, tarfile, zipfile
-
-version = '1.21.0 ($$REV$$)'
-parser = optparse.OptionParser(version='test.py '+version, usage='usage: %prog [options] [problem names] [[path' + os.path.sep + 'to' + os.path.sep + ']solution-app] [test case numbers]\n\nTest case numbers can be specified in plain text or as a Python expression\nif there is only one positional argument.\n\nOnly problem names listed in testconf.py are recognized.')
-parser.add_option('-u', '--update', dest='update', action='store_true', default=False, help='check for an updated version of test.py')
-parser.add_option('-e', '--exclude', dest='exclude', action='append', help='test case number(s) to exclude, as a Python expression; multiple -e options can be supplied')
-parser.add_option('-c', '--cleanup', dest='clean', action='store_true', default=False, help='delete the copies of input/output files and exit')
-parser.add_option('-s', '--save-io', dest='erase', action='store_false', default=True, help='do not delete the copies of input/output files after the last test case; create copies of input files and store output in files even if the solution uses standard I/O; delete the stored input/output files if the solution uses standard I/O and the -c/--cleanup option is specified')
-parser.add_option('-m', '--copy-io', dest='copyonly', action='store_true', default=False, help='only create a copy of the input/output files of the last test case for manual testing; to delete them, use options -cs or -cm')
-parser.add_option('-x', '--auto-exit', dest='pause', action='store_false', default=True, help='do not wait for a key to be pressed when finished testing')
-parser.add_option('-p', '--python', action='store_true', default=False, help='always parse all positional arguments as a single Python expression (including the first argument even if it names an executable file)')
-parser.add_option('-t', '--detect-time', dest='autotime', action='store_true', default=False, help='spend a second detecting the most precise time measurement function')
-parser.add_option('-b', dest='builtin', action='store_true', default=False)
-
-options, args = parser.parse_args()
-parser.destroy()
-del parser
-
-if options.builtin:
-	try:
-		if args[0] == 'run':
-			import resource
-			maxmemory = int(args[1])
-			resource.setrlimit(resource.RLIMIT_AS, (maxmemory*1024**2, maxmemory*1024**2))
-			os.execv(args[2], args[2:])
-		else:
-			sys.exit(2)
-	except:
-		sys.exit(2)
-
-def update():
-	import urllib
-	latesttext = urllib.urlopen('http://chortos.selfip.net/~astiob/test.py/version.txt').read()
-	latest = latesttext.split('.')
-	installed = version.split('.')
-	update = ''
-	if latest[0] > installed[0]:
-		update = 'major'
-	elif latest[0] == installed[0]:
-		if latest[1] > installed[1]:
-			update = 'feature'
-		elif latest[1] == installed[1]:
-			if latest[2] > installed[2]:
-				update = 'bug-fixing'
-			elif latest[2] == installed[2]:
-				print 'You are using the latest publicly available version of test.py.'
-				return
-	if update == '':
-		print 'Your copy of test.py is newer than the publicly available version.'
-		return
-	print 'A ' + update + ' update to test.py is available. Downloading...'
-	sys.stdout.flush()
-	urllib.urlretrieve('http://chortos.selfip.net/~astiob/test.py/test.py', 'test.py')
-	print 'Downloaded and installed. Now you are using test.py ' + latesttext + '.'
-
-if options.update:
-	update()
-	sys.exit()
-
-try:
-	import resource
-	memlimit = True
-	def call(name):
-		pid = os.fork()
-		if not pid:
-			resource.setrlimit(resource.RLIMIT_AS, (maxmemory*1024**2, maxmemory*1024**2))
-			os.execl(name)
-		else:
-			return pid
-except ImportError:
-	memlimit = False
-
-globals1 = set(globals())
-
-# Initialize some configuration variables with default values
-tasknames = (os.path.curdir,)
-maxtime = 0
-tests = ()
-dummies = ()
-testsexcluded = ()
-padwithzeroestolength = 0
-taskweight = 100
-pointmap = {}
-stdio = False
-dummyinname = ''
-dummyoutname = ''
-tester = ''
-maxexitcode = 0
-
-def exectestconf_helper(name):
-	if os.path.isfile('tests.tar'):
-		f = tarfile.open('tests.tar')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.zip'):
-		f = zipfile.ZipFile('tests.zip')
-		try:
-			exec f.open(name, 'rU').read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tgz'):
-		f = tarfile.open('tests.tgz')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.gz'):
-		f = tarfile.open('tests.tar.gz')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tbz2'):
-		f = tarfile.open('tests.tbz2')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.bz2'):
-		f = tarfile.open('tests.tar.bz2')
-		try:
-			exec f.extractfile(name).read() in globals()
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	return False
-
-try:
-	execfile('testconf.py')
-except IOError, error:
-	exc_info = sys.exc_info()[2]
-	try:
-		execfile(os.path.join('tests', 'testconf.py'))
-	except IOError:
-		if not exectestconf_helper('testconf.py'):
-			raise IOError, (error.errno, 'The configuration file is missing', error.filename), exc_info
-	del exc_info
-
-globals2 = set(globals())
-globals2.remove('globals1')
-globals2 -= globals1
-del globals1
-
-shared = {}
-g = globals()
-for k in globals2:
-	shared[k] = g[k]
-
-newtasknames = []
-while len(args) and args[0] in tasknames:
-	newtasknames.append(args[0])
-	del args[0]
-if len(newtasknames):
-	tasknames = newtasknames
-
-scoresumoveralltasks = 0
-scoremaxoveralltasks = 0
-ntasks = 0
-nfulltasks = 0
-cwd = '' # At any time this is either '' or taskname
-
-if options.autotime:
-	c = time.clock()
-	time.sleep(1)
-	c = time.clock() - c
-	if int(c + .99999) == 1:
-		clock = time.clock
-	else:
-		clock = time.time
-elif os.name == 'nt':
-	clock = time.clock
-else:
-	clock = time.time
-
-if options.copyonly:
-	options.erase = False
-
-def existstestcase_helper(name):
-	if os.path.isfile('tests.tar'):
-		f = tarfile.open('tests.tar')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.zip'):
-		f = zipfile.ZipFile('tests.zip')
-		try:
-			f.getinfo(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tgz'):
-		f = tarfile.open('tests.tgz')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.gz'):
-		f = tarfile.open('tests.tar.gz')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tbz2'):
-		f = tarfile.open('tests.tbz2')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.bz2'):
-		f = tarfile.open('tests.tar.bz2')
-		try:
-			f.getmember(name)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	return False
-
-def existstestcase(name):
-	if os.path.isfile(os.path.join('tests', taskname, name)) or os.path.isfile(os.path.join('tests', name)):
-		return True
-	if cwd and (os.path.isfile(os.path.join(oldcwd, 'tests', cwd, name)) or os.path.isfile(os.path.join(oldcwd, 'tests', name))):
-		return True
-	if existstestcase_helper(os.path.join(taskname, name)) or existstestcase_helper(name):
-		return True
-	if cwd:
-		os.chdir(oldcwd)
-		if existstestcase_helper(os.path.join(cwd, name)) or existstestcase_helper(name):
-			os.chdir(cwd)
-			return True
-		os.chdir(cwd)
-	return False
-
-def opentestcase_helper(name):
-	if os.path.isfile('tests.tar'):
-		f = tarfile.open('tests.tar')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.zip'):
-		f = zipfile.ZipFile('tests.zip')
-		try:
-			c = f.open(name, 'rU')
-			f.close()
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tgz'):
-		f = tarfile.open('tests.tgz')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.gz'):
-		f = tarfile.open('tests.tar.gz')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tbz2'):
-		f = tarfile.open('tests.tbz2')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.bz2'):
-		f = tarfile.open('tests.tar.bz2')
-		try:
-			c = f.extractfile(name)
-			return c
-		except KeyError:
-			f.close()
-	return None
-
-def opentestcase(name):
-	if os.path.isfile(os.path.join('tests', taskname, name)):
-		return open(os.path.join('tests', taskname, name), 'rU')
-	elif os.path.isfile(os.path.join('tests', name)):
-		return open(os.path.join('tests', name), 'rU')
-	f = opentestcase_helper(os.path.join(taskname, name))
-	if not f:
-		f = opentestcase_helper(name)
-	if f:
-		return f
-	if cwd:
-		if os.path.isfile(os.path.join(oldcwd, 'tests', cwd, name)):
-			return open(os.path.join(oldcwd, 'tests', cwd, name), 'rU')
-		elif os.path.isfile(os.path.join(oldcwd, 'tests', name)):
-			return open(os.path.join(oldcwd, 'tests', name), 'rU')
-		os.chdir(oldcwd)
-		f = opentestcase_helper(os.path.join(cwd, name))
-		if not f:
-			f = opentestcase_helper(name)
-		os.chdir(cwd)
-		if f:
-			return f
-	raise KeyError, 'The test-case-defining file \'' + name + '\' cannot be found'
-
-def copytestcase_helper(name, target):
-	if os.path.isfile('tests.tar'):
-		f = tarfile.open('tests.tar')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.zip'):
-		if not os.path.isabs(target):
-			f = zipfile.ZipFile('tests.zip')
-			try:
-				m = f.getinfo(name)
-				m.filename = target
-				f.extract(m)
-				f.close()
-				return True
-			except KeyError:
-				f.close()
-		else:
-			oldcwd = os.getcwdu()
-			os.chdir('/') # FIXME: portability?
-			f = zipfile.ZipFile(os.path.join(oldcwd, 'tests.zip'))
-			try:
-				m = f.getinfo(name)
-				m.filename = os.path.relpath(target)
-				f.extract(m)
-				f.close()
-				os.chdir(oldcwd)
-				return True
-			except KeyError:
-				f.close()
-				os.chdir(oldcwd)
-	if os.path.isfile('tests.tgz'):
-		f = tarfile.open('tests.tgz')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.gz'):
-		f = tarfile.open('tests.tar.gz')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tbz2'):
-		f = tarfile.open('tests.tbz2')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	if os.path.isfile('tests.tar.bz2'):
-		f = tarfile.open('tests.tar.bz2')
-		try:
-			m = f.getmember(name)
-			m.name = target
-			f.extract(m)
-			f.close()
-			return True
-		except KeyError:
-			f.close()
-	return False
-
-def copytestcase(name, target):
-	if os.path.isfile(os.path.join('tests', taskname, name)):
-		shutil.copyfile(os.path.join('tests', taskname, name), target)
-		return
-	elif os.path.isfile(os.path.join('tests', name)):
-		shutil.copyfile(os.path.join('tests', name), target)
-		return
-	if copytestcase_helper(os.path.join(taskname, name), target) or copytestcase_helper(name, target):
-		return
-	if cwd:
-		if os.path.isfile(os.path.join(oldcwd, 'tests', cwd, name)):
-			shutil.copyfile(os.path.join(oldcwd, 'tests', cwd, name), target)
-			return
-		elif os.path.isfile(os.path.join(oldcwd, 'tests', name)):
-			shutil.copyfile(os.path.join(oldcwd, 'tests', name), target)
-			return
-		os.chdir(oldcwd)
-		if copytestcase_helper(os.path.join(cwd, name), target) or copytestcase_helper(name, target):
-			os.chdir(cwd)
-			return
-		os.chdir(cwd)
-	raise KeyError, 'The test-case-defining file \'' + name + '\' cannot be found'
-
-# Always chdir if the directory exists but use any existing config
-def chdir_and_exec_testconf():
-	global cwd
-	cwd = ''
-	if os.path.isdir(taskname):
-		os.chdir(taskname)
-		if taskname != os.path.curdir:
-			cwd = taskname
-		try:
-			execfile('testconf.py', globals())
-			return
-		except IOError:
-			pass
-	if not cwd:
-		if os.path.isfile(os.path.join('tests', taskname, 'testconf.py')):
-			execfile(os.path.join('tests', taskname, 'testconf.py'), globals())
-			return
-		if os.path.isfile(os.path.join('tests', 'testconf.py')):
-			execfile(os.path.join('tests', 'testconf.py'), globals())
-			return
-	if exectestconf_helper(os.path.join(taskname, 'testconf.py')) or exectestconf_helper('testconf.py'):
-		return
-	if cwd:
-		os.chdir(oldcwd)
-		if os.path.isfile(os.path.join('tests', cwd, 'testconf.py')):
-			execfile(os.path.join('tests', cwd, 'testconf.py'), globals())
-			os.chdir(cwd)
-			return
-		if os.path.isfile(os.path.join('tests', 'testconf.py')):
-			execfile(os.path.join('tests', 'testconf.py'), globals())
-			os.chdir(cwd)
-			return
-		if exectestconf_helper(os.path.join(cwd, 'testconf.py')) or exectestconf_helper('testconf.py'):
-			os.chdir(cwd)
-			return
-		if os.path.isfile('testconf.py'):
-			execfile('testconf.py', globals())
-			os.chdir(cwd)
-			return
-		os.chdir(cwd)
-	elif os.path.isfile('testconf.py'):
-		execfile('testconf.py', globals())
-		return
-	raise KeyError, 'The configuration file for task ' + taskname + ' is missing'
-
-try:
-	name
-	namedefined = True
-except Exception:
-	namedefined = False
-
-for taskname in tasknames:
-	if ntasks:
-		print
-	
-	try:
-		if len(tasknames) > 1:
-			print taskname
-	except Exception:
-		if taskname != os.path.curdir or ntasks:
-			print taskname
-	
-	try: del inname
-	except NameError: pass
-	try: del outname
-	except NameError: pass
-	try: del ansname
-	except NameError: pass
-	
-	if not namedefined and taskname != os.path.curdir:
-		name = os.path.join(os.path.curdir, taskname)
-	for k in shared:
-		g[k] = shared[k]
-	
-	oldcwd = os.getcwdu()
-	chdir_and_exec_testconf()
-	
-	if options.clean:
-		try:
-			if not stdio or tester:
-				if not tester:
-					inname
-				outname
-			if tester:
-				ansname
-		except NameError, error:
-			raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
-		if not options.erase:
-			try:
-				inname = inname.replace('%', taskname)
-			except NameError:
-				inname = taskname + '.in'
-			try:
-				outname = outname.replace('%', taskname)
-			except NameError:
-				outname = taskname + '.out'
-			try:
-				ansname = ansname.replace('%', taskname)
-			except NameError:
-				ansname = taskname + '.ans'
-		elif not stdio or tester or not options.erase:
-			inname = inname.replace('%', taskname)
-			outname = outname.replace('%', taskname)
-			if tester:
-				ansname = ansname.replace('%', taskname)
-		if not stdio or tester or not options.erase:
-			if os.path.exists(inname): os.remove(inname)
-			if os.path.exists(outname): os.remove(outname)
-		if (tester or not options.erase) and ansname:
-			if os.path.exists(ansname): os.remove(ansname)
-		continue
-	
-	try:
-		name
-	except NameError, error:
-		if str(error).count('name') == 1:
-			raise NameError, 'configuration ' + str(error), sys.exc_info()[2]
-		else:
-			raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
-	
-	try:
-		if not stdio:
-			inname
-			outname
-		testcaseinname
-		if tester:
-			outname
-			if ansname:
-				testcaseoutname
-		else:
-			testcaseoutname
-	except NameError, error:
-		raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
-	
-	if not options.erase:
-		try:
-			inname
-		except NameError:
-			inname = taskname + '.in'
-		try:
-			outname
-		except NameError:
-			outname = taskname + '.out'
-		try:
-			ansname
-		except NameError:
-			ansname = taskname + '.ans'
-	
-	if options.pause:
-		try:
-			pause
-		except NameError, error:
-			if os.name == 'posix':
-				pause = 'read -s -n 1'
-				print 'Configuration ' + str(error).replace('name ', 'variable ') + '; it was devised automatically but the choice might be incorrect, so test.py might exit immediately after the testing is completed.'
-			elif os.name == 'nt':
-				pause = 'pause'
-			else:
-				raise NameError, 'configuration ' + str(error).replace('name ', 'variable ') + ' and cannot be devised automatically', sys.exc_info()[2]
-	
-	if not dummyinname:
-		dummyinname = testcaseinname
-	if not dummyoutname and (not tester or ansname):
-		dummyoutname = testcaseoutname
-	
-	dummyinname = dummyinname.replace('%', taskname)
-	dummyoutname = dummyoutname.replace('%', taskname)
-	testcaseinname = testcaseinname.replace('%', taskname)
-	if not stdio or not options.erase:
-		inname = inname.replace('%', taskname)
-		outname = outname.replace('%', taskname)
-		try:
-			ansname = ansname.replace('%', taskname)
-		except NameError:
-			pass
-	if tester:
-		try: inname = inname.replace('%', taskname)
-		except NameError: pass
-		outname = outname.replace('%', taskname)
-		if ansname:
-			ansname = ansname.replace('%', taskname)
-			testcaseoutname = testcaseoutname.replace('%', taskname)
-	else:
-		testcaseoutname = testcaseoutname.replace('%', taskname)
-	
-	if isinstance(padwithzeroestolength, tuple):
-		padwithzeroestolength, paddummieswithzeroestolength = padwithzeroestolength
-	else:
-		paddummieswithzeroestolength = padwithzeroestolength
-	
-	if options.python:
-		dummies = ()
-		s = ' '.join(args)
-		tests = eval(s)
-		try:
-			tests.__iter__
-		except AttributeError:
-			tests = (tests,)
-	elif len(args):
-		if os.path.exists(args[0]):
-			name = args[0]
-			del args[0]
-		if len(args) > 1:
-			dummies = ()
-			tests = args
-		elif len(args):
-			dummies = ()
-			s = args[0]
-			if len(s) < padwithzeroestolength:
-				s = s.zfill(padwithzeroestolength)
-			if existstestcase(testcaseinname.replace('$', s)):
-				tests = (s,)
-			else:
-				try:
-					tests = eval(args[0])
-					try:
-						tests.__iter__
-					except AttributeError:
-						tests = (tests,)
-				except Exception:
-					tests = (s,)
-	
-	if options.exclude:
-		testsexcluded = []
-		for i in options.exclude:
-			v = eval(i)
-			try:
-				testsexcluded.extend(v)
-			except TypeError:
-				testsexcluded.append(v)
-	
-	# Windows doesn't like paths beginning with .\ and not ending with an extension
-	name = os.path.normcase(name)
-	if os.name == 'nt' and name.startswith('.\\'):
-		name = name[2:]
-	
-	newpointmap = {}
-	
-	for i in pointmap:
-		try:
-			for j in i:
-				newpointmap[j] = pointmap[i]
-		except TypeError:
-			newpointmap[i] = pointmap[i]
-	
-	pointmap = newpointmap
-	
-	if not tester:
-		maxexitcode = 0
-	
-	if maxtime > 0:
-		strmaxtime = '/%.3f' % maxtime
-	else:
-		strmaxtime = ''
-	
-	padoutputtolength = 0
-	ntests = []
-	
-	for j in dummies:
-		try:
-			j.__iter__
-		except AttributeError:
-			j = (j,)
-		ntests.append((j, True))
-		for i in j:
-			s = str(i)
-			if len(s) < paddummieswithzeroestolength:
-				s = s.zfill(paddummieswithzeroestolength)
-			s = 'sample ' + s
-			if padoutputtolength < len(s):
-				padoutputtolength = len(s)
-	
-	for j in tests:
-		try:
-			j.__iter__
-		except AttributeError:
-			j = (j,)
-		ntests.append((j, False))
-		for i in j:
-			s = str(i)
-			if len(s) < padwithzeroestolength:
-				s = s.zfill(padwithzeroestolength)
-			if padoutputtolength < len(s):
-				padoutputtolength = len(s)
-	
-	tests = ntests
-	score = maxpoints = ncorrect = ntotal = ncorrectvalued = nvalued = 0
-	
-	if options.copyonly:
-		j, isdummy = tests[-1]
-		if isdummy:
-			realinname = dummyinname
-			realoutname = dummyoutname
-		else:
-			realinname = testcaseinname
-			realoutname = testcaseoutname
-		for i in j:
-			if i in testsexcluded and not isdummy:
-				continue
-			s = str(i)
-			if isdummy:
-				if len(s) < paddummieswithzeroestolength:
-					s = s.zfill(paddummieswithzeroestolength)
-			else:
-				if len(s) < padwithzeroestolength:
-					s = s.zfill(padwithzeroestolength)
-			copytestcase(realinname.replace('$', s), inname)
-			if ansname:
-				copytestcase(realoutname.replace('$', s), ansname)
-		continue
-	
-	for j, isdummy in tests:
-		ncorrectgrp = 0
-		ntotalgrp = 0
-		scoregrp = 0
-		maxpointsgrp = 0
-		if isdummy:
-			realinname = dummyinname
-			realoutname = dummyoutname
-		else:
-			realinname = testcaseinname
-			realoutname = testcaseoutname
-		for i in j:
-			if i in testsexcluded and not isdummy:
-				continue
-			ntotalgrp += 1
-			s = str(i)
-			if isdummy:
-				npoints = 0
-				if len(s) < paddummieswithzeroestolength:
-					s = s.zfill(paddummieswithzeroestolength)
-				spref = 'sample '
-			else:
-				npoints = pointmap.get(None, maxexitcode if maxexitcode and isinstance(maxexitcode, int) else 1)
-				npoints = pointmap.get(i, npoints)
-				maxpointsgrp += npoints
-				if npoints:
-					nvalued += 1
-				if len(s) < padwithzeroestolength:
-					s = s.zfill(padwithzeroestolength)
-				spref = ''
-			print ' ' * (padoutputtolength - len(spref + s)) + spref + s + ':',
-			sys.stdout.flush()
-			outputdata = open(os.devnull, 'w')
-			if stdio:
-				f = tempfile.NamedTemporaryFile(delete=False)
-				inputdatafname = f.name
-				f.close()
-				copytestcase(realinname.replace('$', s), inputdatafname)
-				inputdata = open(inputdatafname, 'rU')
-				if options.erase:
-					tempoutput = tempfile.TemporaryFile('w+')
-				else:
-					tempoutput = open(outname, 'w+')
-				try:
-					proc = subprocess.Popen(name, stdin=inputdata, stdout=tempoutput, stderr=outputdata, universal_newlines=True)
-				except OSError, error:
-					raise OSError, 'The program to be tested cannot be launched: ' + str(error), sys.exc_info()[2]
-			else:
-				if os.path.exists(outname):
-					os.remove(outname)
-				copytestcase(realinname.replace('$', s), inname)
-				try:
-					proc = subprocess.Popen(name, stdin=outputdata, stdout=outputdata, stderr=outputdata, universal_newlines=True)
-				except OSError, error:
-					raise OSError, 'The program to be tested cannot be launched: ' + str(error), sys.exc_info()[2]
-			cl = clock()
-			if maxtime > 0:
-				while 1:
-					proc.poll()
-					elapsed = clock() - cl
-					if proc.returncode == None:
-						if elapsed >= maxtime:
-							print '%.3f%s s, 0/%d, time limit exceeded' % (elapsed, strmaxtime, npoints)
-							sys.stdout.flush()
-							while proc.returncode == None:
-								try:
-									proc.terminate()
-								except OSError:
-									pass
-								except AttributeError:
-									try:
-										os.kill(proc.pid, signal.SIGTERM)
-									except Exception:
-										pass
-								proc.poll()
-							outputdata.close()
-							if stdio:
-								tempoutput.close()
-							break
-					else:
-						print '%.3f%s s,' % (elapsed, strmaxtime),
-						sys.stdout.flush()
-						elapsed = 0
-						if stdio:
-							tempoutput.seek(0)
-							lines = tempoutput.readlines()
-							tempoutput.close()
-						break
-				if elapsed >= maxtime:
-					continue
-			else:
-				data = proc.communicate()
-				elapsed = clock() - cl
-				print '%.3f%s s,' % (elapsed, strmaxtime),
-				sys.stdout.flush()
-				if stdio:
-					tempoutput.seek(0)
-					lines = tempoutput.readlines()
-					tempoutput.close()
-			outputdata.close()
-			if stdio:
-				inputdata.close()
-				try:
-					os.unlink(inputdatafname)
-				except Exception:
-					pass
-			if proc.returncode > 0:
-				print '0/%d, non-zero return code %d' % (npoints, proc.returncode)
-				sys.stdout.flush()
-			elif proc.returncode < 0:
-				print '0/%d, terminated by signal %d' % (npoints, -proc.returncode)
-				sys.stdout.flush()
-			else:
-				if not tester:
-					if stdio:
-						outputdata = opentestcase(realoutname.replace('$', s))
-						r = 0
-						data = outputdata.read().splitlines(True)
-						if len(lines) != len(data):
-							r = 1
-						else:
-							for i in zip(lines, data):
-								if i[0] != i[1]:
-									r = 1
-									break
-						outputdata.close()
-					else:
-						try:
-							inputdata = open(outname, 'rU')
-						except IOError:
-							print '0/%g, output file not created or not readable' % npoints
-							sys.stdout.flush()
-							r = None
-						else:
-							outputdata = opentestcase(realoutname.replace('$', s))
-							r = 0
-							lines = inputdata.readlines()
-							data = outputdata.read().splitlines(True)
-							if len(lines) != len(data):
-								r = 1
-							else:
-								for i in zip(lines, data):
-									if i[0] != i[1]:
-										r = 1
-										break
-							inputdata.close()
-							outputdata.close()
-				else:
-					if ansname:
-						copytestcase(realoutname.replace('$', s), ansname)
-					if stdio:
-						try: copytestcase(realinname.replace('$', s), inname)
-						except NameError: pass
-						outputdata = open(outname, 'w')
-						outputdata.writelines(lines)
-						outputdata.close()
-					try:
-						proc = subprocess.Popen(tester, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True)
-					except OSError, error:
-						raise OSError, 'The tester application cannot be launched: ' + str(error), sys.exc_info()[2]
-					data = proc.communicate()
-					r = proc.returncode
-				if tester and data[0]:
-					data = ''.join((' (', data[0].strip(), ')'))
-				else:
-					data = ''
-				if not maxexitcode and r or maxexitcode and not r:
-					print '0/%g, wrong answer%s' % (npoints, data)
-					sys.stdout.flush()
-				elif not maxexitcode and r == 0 or maxexitcode and r >= maxexitcode:
-					print '%g/%g, OK%s' % (npoints, npoints, data)
-					sys.stdout.flush()
-					scoregrp += npoints
-					ncorrectgrp += 1
-					if npoints:
-						ncorrectvalued += 1
-				elif maxexitcode and r != None:
-					actualpoints = npoints*r/maxexitcode if not npoints*r%maxexitcode else float(npoints*r)/maxexitcode
-					print '%g/%g, partly OK%s' % (actualpoints, npoints, data)
-					sys.stdout.flush()
-					scoregrp += actualpoints
-					ncorrectgrp += 1
-					if npoints:
-						ncorrectvalued += 1
-		if ntotalgrp:
-			if ncorrectgrp < ntotalgrp:
-				scoregrp = 0
-			if ntotalgrp > 1:
-				print 'Group total: %d/%d tests; %g/%g points' % (ncorrectgrp, ntotalgrp, scoregrp, maxpointsgrp)
-				sys.stdout.flush()
-			ncorrect += ncorrectgrp
-			ntotal += ntotalgrp
-			score += scoregrp
-			maxpoints += maxpointsgrp
-	
-	if options.erase:
-		if not stdio or tester:
-			if os.path.exists(inname): os.remove(inname)
-			if os.path.exists(outname): os.remove(outname)
-		if tester and ansname:
-			if os.path.exists(ansname): os.remove(ansname)
-	elif stdio:
-		copytestcase(realinname.replace('$', s), inname)
-		copytestcase(realoutname.replace('$', s), ansname)
-	actualpoints = (score*taskweight/maxpoints if not score*taskweight%maxpoints else float(score*taskweight)/maxpoints) if maxpoints else 0
-	if nvalued != ntotal:
-		print 'Grand total: %d/%d tests (%d/%d valued); %g/%g points; weighted score: %g/%g' % (ncorrect, ntotal, ncorrectvalued, nvalued, score, maxpoints, actualpoints, taskweight)
-	else:
-		print 'Grand total: %d/%d tests; %g/%g points; weighted score: %g/%g' % (ncorrect, ntotal, score, maxpoints, actualpoints, taskweight)
-	
-	scoresumoveralltasks += actualpoints
-	scoremaxoveralltasks += taskweight
-	ntasks += 1
-	nfulltasks += int((score == maxpoints) if maxpoints else (taskweight == 0))
-	
-	os.chdir(oldcwd)
-
-if options.clean or options.copyonly:
-	sys.exit()
-
-if ntasks != 1:
-	print
-	print 'Grand grand total: %g/%g weighted points; %d/%d problems solved fully' % (scoresumoveralltasks, scoremaxoveralltasks, nfulltasks, ntasks)
-
-if options.pause:
-	print 'Press any key to exit... ',
-	sys.stdout.flush()
-	os.system(pause + ' >' + os.devnull)
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test.py	Sun Dec 19 23:23:24 2010 +0200
@@ -0,0 +1,899 @@
+#! /usr/bin/python
+# Copyright (c) 2009, 2010 Chortos-2 <chortos@inbox.lv>
+
+import os, sys, shutil, time, subprocess, filecmp, optparse, signal, tempfile, tarfile, zipfile
+
+parser = optparse.OptionParser(version='test.py 1.20.3', usage='usage: %prog [options] [problem names] [[path/to/]solution-app] [test case numbers]\n\nTest case numbers can be specified in plain text or as a Python expression\nif there is only one positional argument.\n\nOnly problem names listed in testconf.py are recognized.')
+parser.add_option('-e', '--exclude', dest='exclude', action='append', help='test case number(s) to exclude, as a Python expression; multiple -e options can be supplied')
+parser.add_option('-c', '--cleanup', dest='clean', action='store_true', default=False, help='delete the copies of input/output files and exit')
+parser.add_option('-s', '--save-io', dest='erase', action='store_false', default=True, help='do not delete the copies of input/output files after the last test case; create copies of input files and store output in files even if the solution uses standard I/O; delete the stored input/output files if the solution uses standard I/O and the -c/--cleanup option is specified')
+parser.add_option('-m', '--copy-io', dest='copyonly', action='store_true', default=False, help='only create a copy of the input/output files of the last test case for manual testing; to delete them, use options -cs')
+parser.add_option('-x', '--auto-exit', dest='pause', action='store_false', default=True, help='do not wait for a key to be pressed when finished testing')
+parser.add_option('-p', '--python', action='store_true', default=False, help='always parse all positional arguments as a single Python expression (including the first argument even if it names an executable file)')
+parser.add_option('-t', '--detect-time', dest='autotime', action='store_true', default=False, help='spend a second detecting the most precise time measurement function')
+
+options, args = parser.parse_args()
+parser.destroy()
+del parser
+
+globals1 = set(globals())
+
+# Initialize some configuration variables with default values
+tasknames = ('.',)
+maxtime = 0
+tests = ()
+dummies = ()
+testsexcluded = ()
+padwithzeroestolength = 0
+taskweight = 100
+pointmap = {}
+stdio = False
+dummyinname = ''
+dummyoutname = ''
+tester = ''
+
+def exectestconf_helper(name):
+	if os.path.isfile('tests.tar'):
+		f = tarfile.open('tests.tar')
+		try:
+			exec f.extractfile(name).read() in globals()
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.zip'):
+		f = zipfile.ZipFile('tests.zip')
+		try:
+			exec f.open(name, 'rU').read() in globals()
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tgz'):
+		f = tarfile.open('tests.tgz')
+		try:
+			exec f.extractfile(name).read() in globals()
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tar.gz'):
+		f = tarfile.open('tests.tar.gz')
+		try:
+			exec f.extractfile(name).read() in globals()
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tbz2'):
+		f = tarfile.open('tests.tbz2')
+		try:
+			exec f.extractfile(name).read() in globals()
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tar.bz2'):
+		f = tarfile.open('tests.tar.bz2')
+		try:
+			exec f.extractfile(name).read() in globals()
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	return False
+
+try:
+	execfile('testconf.py')
+except IOError, error:
+	exc_info = sys.exc_info()[2]
+	try:
+		execfile('tests/testconf.py')
+	except IOError:
+		if not exectestconf_helper('testconf.py'):
+			raise IOError, (error.errno, 'The configuration file is missing', error.filename), exc_info
+	del exc_info
+
+globals2 = set(globals())
+globals2.remove('globals1')
+globals2 -= globals1
+del globals1
+
+shared = {}
+g = globals()
+for k in globals2:
+	shared[k] = g[k]
+
+newtasknames = []
+while len(args) and args[0] in tasknames:
+	newtasknames.append(args[0])
+	del args[0]
+if len(newtasknames):
+	tasknames = newtasknames
+
+scoresumoveralltasks = 0
+scoremaxoveralltasks = 0
+ntasks = 0
+nfulltasks = 0
+cwd = '' # At any time this is either '' or taskname + '/'
+
+if options.autotime:
+	c = time.clock()
+	time.sleep(1)
+	c = time.clock() - c
+	if int(c + .99999) == 1:
+		clock = time.clock
+	else:
+		clock = time.time
+elif os.name == 'nt':
+	clock = time.clock
+else:
+	clock = time.time
+
+if options.copyonly:
+	options.erase = False
+
+def existstestcase_helper(name):
+	if os.path.isfile('tests.tar'):
+		f = tarfile.open('tests.tar')
+		try:
+			f.getmember(name)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.zip'):
+		f = zipfile.ZipFile('tests.zip')
+		try:
+			f.getinfo(name)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tgz'):
+		f = tarfile.open('tests.tgz')
+		try:
+			f.getmember(name)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tar.gz'):
+		f = tarfile.open('tests.tar.gz')
+		try:
+			f.getmember(name)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tbz2'):
+		f = tarfile.open('tests.tbz2')
+		try:
+			f.getmember(name)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tar.bz2'):
+		f = tarfile.open('tests.tar.bz2')
+		try:
+			f.getmember(name)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	return False
+
+def existstestcase(name):
+	if os.path.isfile('tests/' + taskname + '/' + name) or os.path.isfile('tests/' + name):
+		return True
+	if cwd and (os.path.isfile(oldcwd + '/tests/' + cwd + name) or os.path.isfile(oldcwd + '/tests/' + name)):
+		return True
+	if existstestcase_helper(taskname + '/' + name) or existstestcase_helper(name):
+		return True
+	if cwd:
+		os.chdir(oldcwd)
+		if existstestcase_helper(cwd + name) or existstestcase_helper(name):
+			os.chdir(cwd)
+			return True
+		os.chdir(cwd)
+	return False
+
+def opentestcase_helper(name):
+	if os.path.isfile('tests.tar'):
+		f = tarfile.open('tests.tar')
+		try:
+			c = f.extractfile(name)
+			return c
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.zip'):
+		f = zipfile.ZipFile('tests.zip')
+		try:
+			c = f.open(name, 'rU')
+			f.close()
+			return c
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tgz'):
+		f = tarfile.open('tests.tgz')
+		try:
+			c = f.extractfile(name)
+			return c
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tar.gz'):
+		f = tarfile.open('tests.tar.gz')
+		try:
+			c = f.extractfile(name)
+			return c
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tbz2'):
+		f = tarfile.open('tests.tbz2')
+		try:
+			c = f.extractfile(name)
+			return c
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tar.bz2'):
+		f = tarfile.open('tests.tar.bz2')
+		try:
+			c = f.extractfile(name)
+			return c
+		except KeyError:
+			f.close()
+	return None
+
+def opentestcase(name):
+	if os.path.isfile('tests/' + taskname + '/' + name):
+		return open('tests/' + taskname + '/' + name, 'rU')
+	elif os.path.isfile('tests/' + name):
+		return open('tests/' + name, 'rU')
+	f = opentestcase_helper(taskname + '/' + name)
+	if not f:
+		f = opentestcase_helper(name)
+	if f:
+		return f
+	if cwd:
+		if os.path.isfile(oldcwd + '/tests/' + cwd + name):
+			return open(oldcwd + '/tests/' + cwd + name, 'rU')
+		elif os.path.isfile(oldcwd + '/tests/' + name):
+			return open(oldcwd + '/tests/' + name, 'rU')
+		os.chdir(oldcwd)
+		f = opentestcase_helper(cwd + name)
+		if not f:
+			f = opentestcase_helper(name)
+		os.chdir(cwd)
+		if f:
+			return f
+	raise KeyError, 'The test-case-defining file \'' + name + '\' cannot be found'
+
+def copytestcase_helper(name, target):
+	if os.path.isfile('tests.tar'):
+		f = tarfile.open('tests.tar')
+		try:
+			m = f.getmember(name)
+			m.name = target
+			f.extract(m)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.zip'):
+		if not target.startswith('/'):
+			f = zipfile.ZipFile('tests.zip')
+			try:
+				m = f.getinfo(name)
+				m.filename = target
+				f.extract(m)
+				f.close()
+				return True
+			except KeyError:
+				f.close()
+		else:
+			oldcwd = os.getcwdu()
+			os.chdir('/')
+			f = zipfile.ZipFile(oldcwd + '/tests.zip')
+			try:
+				m = f.getinfo(name)
+				m.filename = os.path.relpath(target)
+				f.extract(m)
+				f.close()
+				os.chdir(oldcwd)
+				return True
+			except KeyError:
+				f.close()
+				os.chdir(oldcwd)
+	if os.path.isfile('tests.tgz'):
+		f = tarfile.open('tests.tgz')
+		try:
+			m = f.getmember(name)
+			m.name = target
+			f.extract(m)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tar.gz'):
+		f = tarfile.open('tests.tar.gz')
+		try:
+			m = f.getmember(name)
+			m.name = target
+			f.extract(m)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tbz2'):
+		f = tarfile.open('tests.tbz2')
+		try:
+			m = f.getmember(name)
+			m.name = target
+			f.extract(m)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	if os.path.isfile('tests.tar.bz2'):
+		f = tarfile.open('tests.tar.bz2')
+		try:
+			m = f.getmember(name)
+			m.name = target
+			f.extract(m)
+			f.close()
+			return True
+		except KeyError:
+			f.close()
+	return False
+
+def copytestcase(name, target):
+	if os.path.isfile('tests/' + taskname + '/' + name):
+		shutil.copyfile('tests/' + taskname + '/' + name, target)
+		return
+	elif os.path.isfile('tests/' + name):
+		shutil.copyfile('tests/' + name, target)
+		return
+	if copytestcase_helper(taskname + '/' + name, target) or copytestcase_helper(name, target):
+		return
+	if cwd:
+		if os.path.isfile(oldcwd + '/tests/' + cwd + name):
+			shutil.copyfile(oldcwd + '/tests/' + cwd + name, target)
+			return
+		elif os.path.isfile(oldcwd + '/tests/' + name):
+			shutil.copyfile(oldcwd + '/tests/' + name, target)
+			return
+		os.chdir(oldcwd)
+		if copytestcase_helper(cwd + name, target) or copytestcase_helper(name, target):
+			os.chdir(cwd)
+			return
+		os.chdir(cwd)
+	raise KeyError, 'The test-case-defining file \'' + name + '\' cannot be found'
+
+# Always chdir if the directory exists but use any existing config
+def chdir_and_exec_testconf():
+	global cwd
+	cwd = ''
+	if os.path.isdir(taskname):
+		os.chdir(taskname)
+		if taskname != '.':
+			cwd = taskname + '/'
+		try:
+			execfile('testconf.py', globals())
+			return
+		except IOError:
+			pass
+	if not cwd:
+		if os.path.isfile('tests/' + taskname + '/testconf.py'):
+			execfile('tests/' + taskname + '/testconf.py', globals())
+			return
+		if os.path.isfile('tests/testconf.py'):
+			execfile('tests/testconf.py', globals())
+			return
+	if exectestconf_helper(taskname + '/testconf.py') or exectestconf_helper('testconf.py'):
+		return
+	if cwd:
+		os.chdir(oldcwd)
+		if os.path.isfile('tests/' + cwd + 'testconf.py'):
+			execfile('tests/' + cwd + 'testconf.py', globals())
+			os.chdir(cwd)
+			return
+		if os.path.isfile('tests/testconf.py'):
+			execfile('tests/testconf.py', globals())
+			os.chdir(cwd)
+			return
+		if exectestconf_helper(cwd + 'testconf.py') or exectestconf_helper('testconf.py'):
+			os.chdir(cwd)
+			return
+		if os.path.isfile('testconf.py'):
+			execfile('testconf.py', globals())
+			os.chdir(cwd)
+			return
+		os.chdir(cwd)
+	elif os.path.isfile('testconf.py'):
+		execfile('testconf.py', globals())
+		return
+	raise KeyError, 'The configuration file for task ' + taskname + ' is missing'
+
+try:
+	name
+	namedefined = True
+except Exception:
+	namedefined = False
+
+for taskname in tasknames:
+	if ntasks:
+		print
+	
+	try:
+		if len(tasknames) > 1:
+			print taskname
+	except Exception:
+		if taskname != '.' or ntasks:
+			print taskname
+	
+	try: del inname
+	except NameError: pass
+	try: del outname
+	except NameError: pass
+	try: del ansname
+	except NameError: pass
+	
+	if not namedefined and taskname != '.':
+		name = './' + taskname
+	for k in shared:
+		g[k] = shared[k]
+	
+	oldcwd = os.getcwdu()
+	chdir_and_exec_testconf()
+	
+	if options.clean:
+		try:
+			if not stdio or tester:
+				if not tester:
+					inname
+				outname
+			if tester:
+				ansname
+		except NameError, error:
+			raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
+		if not options.erase:
+			try:
+				inname = inname.replace('%', taskname)
+			except NameError:
+				inname = taskname + '.in'
+			try:
+				outname = outname.replace('%', taskname)
+			except NameError:
+				outname = taskname + '.out'
+			try:
+				ansname = ansname.replace('%', taskname)
+			except NameError:
+				ansname = taskname + '.ans'
+		else:
+			inname = inname.replace('%', taskname)
+			outname = outname.replace('%', taskname)
+			if tester:
+				ansname = ansname.replace('%', taskname)
+		if not stdio or tester or not options.erase:
+			if os.path.exists(inname): os.remove(inname)
+			if os.path.exists(outname): os.remove(outname)
+		if (tester or not options.erase) and ansname:
+			if os.path.exists(ansname): os.remove(ansname)
+		continue
+	
+	try:
+		name
+	except NameError, error:
+		if str(error).count('name') == 1:
+			raise NameError, 'configuration ' + str(error), sys.exc_info()[2]
+		else:
+			raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
+	
+	try:
+		if not stdio:
+			inname
+			outname
+		testcaseinname
+		if tester:
+			outname
+			if ansname:
+				testcaseoutname
+		else:
+			testcaseoutname
+	except NameError, error:
+		raise NameError, 'configuration ' + str(error).replace('name ', 'variable ', 1), sys.exc_info()[2]
+	
+	if not options.erase:
+		try:
+			inname
+		except NameError:
+			inname = taskname + '.in'
+		try:
+			outname
+		except NameError:
+			outname = taskname + '.out'
+		try:
+			ansname
+		except NameError:
+			ansname = taskname + '.ans'
+	
+	if options.pause:
+		try:
+			pause
+		except NameError, error:
+			if os.name == 'posix':
+				pause = 'read -s -n 1'
+				print 'Configuration ' + str(error).replace('name ', 'variable ') + '; it was devised automatically but the choice might be incorrect, so test.py might exit immediately after the testing is complete.'
+			elif os.name == 'nt':
+				pause = 'pause'
+			else:
+				raise NameError, 'configuration ' + str(error).replace('name ', 'variable ') + ' and cannot be devised automatically', sys.exc_info()[2]
+	
+	if not dummyinname:
+		dummyinname = testcaseinname
+	if not dummyoutname and (not tester or ansname):
+		dummyoutname = testcaseoutname
+	
+	dummyinname = dummyinname.replace('%', taskname)
+	dummyoutname = dummyoutname.replace('%', taskname)
+	testcaseinname = testcaseinname.replace('%', taskname)
+	if not stdio or not options.erase:
+		inname = inname.replace('%', taskname)
+		outname = outname.replace('%', taskname)
+		try:
+			ansname = ansname.replace('%', taskname)
+		except NameError:
+			pass
+	if tester:
+		try: inname = inname.replace('%', taskname)
+		except NameError: pass
+		outname = outname.replace('%', taskname)
+		if ansname:
+			ansname = ansname.replace('%', taskname)
+			testcaseoutname = testcaseoutname.replace('%', taskname)
+	else:
+		testcaseoutname = testcaseoutname.replace('%', taskname)
+	
+	if isinstance(padwithzeroestolength, tuple):
+		padwithzeroestolength, paddummieswithzeroestolength = padwithzeroestolength
+	else:
+		paddummieswithzeroestolength = padwithzeroestolength
+	
+	if options.python:
+		dummies = ()
+		s = ' '.join(args)
+		tests = eval(s)
+		try:
+			tests.__iter__
+		except AttributeError:
+			tests = (tests,)
+	elif len(args):
+		if os.path.exists(args[0]):
+			name = args[0]
+			del args[0]
+		if len(args) > 1:
+			dummies = ()
+			tests = args
+		elif len(args):
+			dummies = ()
+			s = args[0]
+			if len(s) < padwithzeroestolength:
+				s = s.zfill(padwithzeroestolength)
+			if existstestcase(testcaseinname.replace('$', s)):
+				tests = (s,)
+			else:
+				try:
+					tests = eval(args[0])
+					try:
+						tests.__iter__
+					except AttributeError:
+						tests = (tests,)
+				except Exception:
+					tests = (s,)
+	
+	if options.exclude:
+		testsexcluded = []
+		for i in options.exclude:
+			v = eval(i)
+			try:
+				testsexcluded.extend(v)
+			except TypeError:
+				testsexcluded.append(v)
+	
+	# Windows doesn't like paths beginning with .\ and not ending with an extension
+	name = os.path.normcase(name)
+	if name.startswith('.\\'):
+		name = name[2:]
+	
+	newpointmap = {}
+	
+	for i in pointmap:
+		try:
+			for j in i:
+				newpointmap[j] = pointmap[i]
+		except TypeError:
+			newpointmap[i] = pointmap[i]
+	
+	pointmap = newpointmap
+	
+	if maxtime > 0:
+		strmaxtime = '/%.3f' % maxtime
+	else:
+		strmaxtime = ''
+	
+	padoutputtolength = 0
+	ntests = []
+	
+	for j in dummies:
+		try:
+			j.__iter__
+		except AttributeError:
+			j = (j,)
+		ntests.append((j, True))
+		for i in j:
+			s = str(i)
+			if len(s) < paddummieswithzeroestolength:
+				s = s.zfill(paddummieswithzeroestolength)
+			s = 'sample ' + s
+			if padoutputtolength < len(s):
+				padoutputtolength = len(s)
+	
+	for j in tests:
+		try:
+			j.__iter__
+		except AttributeError:
+			j = (j,)
+		ntests.append((j, False))
+		for i in j:
+			s = str(i)
+			if len(s) < padwithzeroestolength:
+				s = s.zfill(padwithzeroestolength)
+			if padoutputtolength < len(s):
+				padoutputtolength = len(s)
+	
+	tests = ntests
+	score = maxpoints = ncorrect = ntotal = ncorrectvalued = nvalued = 0
+	
+	if options.copyonly:
+		j, isdummy = tests[-1]
+		if isdummy:
+			realinname = dummyinname
+			realoutname = dummyoutname
+		else:
+			realinname = testcaseinname
+			realoutname = testcaseoutname
+		for i in j:
+			if i in testsexcluded and not isdummy:
+				continue
+			s = str(i)
+			if isdummy:
+				if len(s) < paddummieswithzeroestolength:
+					s = s.zfill(paddummieswithzeroestolength)
+			else:
+				if len(s) < padwithzeroestolength:
+					s = s.zfill(padwithzeroestolength)
+			copytestcase(realinname.replace('$', s), inname)
+			if ansname:
+				copytestcase(realoutname.replace('$', s), ansname)
+		continue
+	
+	for j, isdummy in tests:
+		ncorrectgrp = 0
+		ntotalgrp = 0
+		scoregrp = 0
+		maxpointsgrp = 0
+		if isdummy:
+			realinname = dummyinname
+			realoutname = dummyoutname
+		else:
+			realinname = testcaseinname
+			realoutname = testcaseoutname
+		for i in j:
+			if i in testsexcluded and not isdummy:
+				continue
+			ntotalgrp += 1
+			s = str(i)
+			if isdummy:
+				npoints = 0
+				if len(s) < paddummieswithzeroestolength:
+					s = s.zfill(paddummieswithzeroestolength)
+				spref = 'sample '
+			else:
+				npoints = pointmap.get(None, 1)
+				npoints = pointmap.get(i, npoints)
+				maxpointsgrp += npoints
+				if npoints:
+					nvalued += 1
+				if len(s) < padwithzeroestolength:
+					s = s.zfill(padwithzeroestolength)
+				spref = ''
+			print ' ' * (padoutputtolength - len(spref + s)) + spref + s + ':',
+			sys.stdout.flush()
+			outputdata = open(os.devnull, 'w')
+			if stdio:
+				f = tempfile.NamedTemporaryFile(delete=False)
+				inputdatafname = f.name
+				f.close()
+				copytestcase(realinname.replace('$', s), inputdatafname)
+				inputdata = open(inputdatafname, 'rU')
+				if options.erase:
+					tempoutput = tempfile.TemporaryFile('w+')
+				else:
+					tempoutput = open(outname, 'w+')
+				try:
+					proc = subprocess.Popen(name, stdin=inputdata, stdout=tempoutput, stderr=outputdata, universal_newlines=True)
+				except OSError, error:
+					raise OSError, 'The program to be tested cannot be launched: ' + str(error), sys.exc_info()[2]
+			else:
+				if os.path.exists(outname):
+					os.remove(outname)
+				copytestcase(realinname.replace('$', s), inname)
+				try:
+					proc = subprocess.Popen(name, stdin=outputdata, stdout=outputdata, stderr=outputdata, universal_newlines=True)
+				except OSError, error:
+					raise OSError, 'The program to be tested cannot be launched: ' + str(error), sys.exc_info()[2]
+			cl = clock()
+			if maxtime > 0:
+				while 1:
+					proc.poll()
+					elapsed = clock() - cl
+					if proc.returncode == None:
+						if elapsed >= maxtime:
+							print '%.3f%s s, 0/%d, time limit exceeded' % (elapsed, strmaxtime, npoints)
+							sys.stdout.flush()
+							while proc.returncode == None:
+								try:
+									proc.terminate()
+								except OSError:
+									pass
+								except AttributeError:
+									try:
+										os.kill(proc.pid, signal.SIGTERM)
+									except Exception:
+										pass
+								proc.poll()
+							outputdata.close()
+							if stdio:
+								tempoutput.close()
+							break
+					else:
+						print '%.3f%s s,' % (elapsed, strmaxtime),
+						sys.stdout.flush()
+						elapsed = 0
+						if stdio:
+							tempoutput.seek(0)
+							lines = tempoutput.readlines()
+							tempoutput.close()
+						break
+				if elapsed >= maxtime:
+					continue
+			else:
+				data = proc.communicate()
+				elapsed = clock() - cl
+				print '%.3f%s s,' % (elapsed, strmaxtime),
+				sys.stdout.flush()
+				if stdio:
+					tempoutput.seek(0)
+					lines = tempoutput.readlines()
+					tempoutput.close()
+			outputdata.close()
+			if stdio:
+				inputdata.close()
+				try:
+					os.unlink(inputdatafname)
+				except Exception:
+					pass
+			if proc.returncode > 0:
+				print '0/%d, non-zero return code %d' % (npoints, proc.returncode)
+				sys.stdout.flush()
+			elif proc.returncode < 0:
+				print '0/%d, terminated by signal %d' % (npoints, -proc.returncode)
+				sys.stdout.flush()
+			else:
+				if not tester:
+					if stdio:
+						outputdata = opentestcase(realoutname.replace('$', s))
+						r = 0
+						data = outputdata.read().splitlines(True)
+						if len(lines) != len(data):
+							r = 1
+						else:
+							for i in zip(lines, data):
+								if i[0] != i[1]:
+									r = 1
+									break
+						outputdata.close()
+					else:
+						try:
+							inputdata = open(outname, 'rU')
+						except IOError:
+							print '0/%g, output file not created or not readable' % npoints
+							sys.stdout.flush()
+							r = None
+						else:
+							outputdata = opentestcase(realoutname.replace('$', s))
+							r = 0
+							lines = inputdata.readlines()
+							data = outputdata.read().splitlines(True)
+							if len(lines) != len(data):
+								r = 1
+							else:
+								for i in zip(lines, data):
+									if i[0] != i[1]:
+										r = 1
+										break
+							inputdata.close()
+							outputdata.close()
+				else:
+					if ansname:
+						copytestcase(realoutname.replace('$', s), ansname)
+					if stdio:
+						try: copytestcase(realinname.replace('$', s), inname)
+						except NameError: pass
+						outputdata = open(outname, 'w')
+						outputdata.writelines(lines)
+						outputdata.close()
+					try:
+						proc = subprocess.Popen(tester, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True)
+					except OSError, error:
+						raise OSError, 'The tester application cannot be launched: ' + str(error), sys.exc_info()[2]
+					data = proc.communicate()
+					r = proc.returncode
+				if tester and data[0]:
+					data = ''.join((' (', data[0].strip(), ')'))
+				else:
+					data = ''
+				if r:
+					print '0/%g, wrong answer%s' % (npoints, data)
+					sys.stdout.flush()
+				elif r == 0:
+					print '%g/%g, OK%s' % (npoints, npoints, data)
+					sys.stdout.flush()
+					scoregrp += npoints
+					ncorrectgrp += 1
+					if npoints:
+						ncorrectvalued += 1
+		if ntotalgrp:
+			if scoregrp < maxpointsgrp:
+				scoregrp = 0
+			if ntotalgrp > 1:
+				print 'Group total: %d/%d tests; %g/%g points' % (ncorrectgrp, ntotalgrp, scoregrp, maxpointsgrp)
+				sys.stdout.flush()
+			ncorrect += ncorrectgrp
+			ntotal += ntotalgrp
+			score += scoregrp
+			maxpoints += maxpointsgrp
+	
+	if options.erase:
+		if not stdio or tester:
+			if os.path.exists(inname): os.remove(inname)
+			if os.path.exists(outname): os.remove(outname)
+		if tester and ansname:
+			if os.path.exists(ansname): os.remove(ansname)
+	elif stdio:
+		copytestcase(realinname.replace('$', s), inname)
+		copytestcase(realoutname.replace('$', s), ansname)
+	if nvalued != ntotal:
+		print 'Grand total: %d/%d tests (%d/%d valued); %g/%g points; weighted score: %g/%g' % (ncorrect, ntotal, ncorrectvalued, nvalued, score, maxpoints, (score*taskweight/maxpoints if not score*taskweight%maxpoints else float(score*taskweight)/maxpoints) if maxpoints else 0, taskweight)
+	else:
+		print 'Grand total: %d/%d tests; %g/%g points; weighted score: %g/%g' % (ncorrect, ntotal, score, maxpoints, (score*taskweight/maxpoints if not score*taskweight%maxpoints else float(score*taskweight)/maxpoints) if maxpoints else 0, taskweight)
+	
+	scoresumoveralltasks += (score*taskweight/maxpoints if not score*taskweight%maxpoints else float(score*taskweight)/maxpoints) if maxpoints else 0
+	scoremaxoveralltasks += taskweight
+	ntasks += 1
+	nfulltasks += int((score == maxpoints) if maxpoints else (taskweight == 0))
+	
+	os.chdir(oldcwd)
+
+if options.clean or options.copyonly:
+	sys.exit()
+
+if ntasks != 1:
+	print
+	print 'Grand grand total: %g/%g weighted points; %d/%d problems solved fully' % (scoresumoveralltasks, scoremaxoveralltasks, nfulltasks, ntasks)
+
+if options.pause:
+	print 'Press any key to exit... ',
+	sys.stdout.flush()
+	os.system(pause + ' >' + os.devnull)
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zipfile.py	Sun Dec 19 23:23:24 2010 +0200
@@ -0,0 +1,7 @@
+import sys
+if sys.version_info[0] >= 3:
+	from zipfile31 import *
+elif sys.version_info[1] >= 7:
+	from zipfile27 import *
+else:
+	from zipfile26 import *
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zipfile26.py	Sun Dec 19 23:23:24 2010 +0200
@@ -0,0 +1,1436 @@
+"""
+Read and write ZIP files.
+"""
+# Improved by Chortos-2 in 2009 and 2010 (added bzip2 support)
+import struct, os, time, sys, shutil
+import binascii, cStringIO, stat
+
+try:
+    import zlib # We may need its compression method
+    crc32 = zlib.crc32
+except ImportError:
+    zlib = None
+    crc32 = binascii.crc32
+
+try:
+    import bz2 # We may need its compression method
+except ImportError:
+    bz2 = None
+
+__all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
+           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
+
+class BadZipfile(Exception):
+    pass
+
+
+class LargeZipFile(Exception):
+    """
+    Raised when writing a zipfile, the zipfile requires ZIP64 extensions
+    and those extensions are disabled.
+    """
+
+error = BadZipfile      # The exception raised by this module
+
+ZIP64_LIMIT = (1 << 31) - 1
+ZIP_FILECOUNT_LIMIT = 1 << 16
+ZIP_MAX_COMMENT = (1 << 16) - 1
+
+# constants for Zip file compression methods
+ZIP_STORED = 0
+ZIP_DEFLATED = 8
+ZIP_BZIP2 = 12
+# Other ZIP compression methods not supported
+
+# Below are some formats and associated data for reading/writing headers using
+# the struct module.  The names and structures of headers/records are those used
+# in the PKWARE description of the ZIP file format:
+#     http://www.pkware.com/documents/casestudies/APPNOTE.TXT
+# (URL valid as of January 2008)
+
+# The "end of central directory" structure, magic number, size, and indices
+# (section V.I in the format document)
+structEndArchive = "<4s4H2LH"
+stringEndArchive = "PK\005\006"
+sizeEndCentDir = struct.calcsize(structEndArchive)
+
+_ECD_SIGNATURE = 0
+_ECD_DISK_NUMBER = 1
+_ECD_DISK_START = 2
+_ECD_ENTRIES_THIS_DISK = 3
+_ECD_ENTRIES_TOTAL = 4
+_ECD_SIZE = 5
+_ECD_OFFSET = 6
+_ECD_COMMENT_SIZE = 7
+# These last two indices are not part of the structure as defined in the
+# spec, but they are used internally by this module as a convenience
+_ECD_COMMENT = 8
+_ECD_LOCATION = 9
+
+# The "central directory" structure, magic number, size, and indices
+# of entries in the structure (section V.F in the format document)
+structCentralDir = "<4s4B4HL2L5H2L"
+stringCentralDir = "PK\001\002"
+sizeCentralDir = struct.calcsize(structCentralDir)
+
+# indexes of entries in the central directory structure
+_CD_SIGNATURE = 0
+_CD_CREATE_VERSION = 1
+_CD_CREATE_SYSTEM = 2
+_CD_EXTRACT_VERSION = 3
+_CD_EXTRACT_SYSTEM = 4
+_CD_FLAG_BITS = 5
+_CD_COMPRESS_TYPE = 6
+_CD_TIME = 7
+_CD_DATE = 8
+_CD_CRC = 9
+_CD_COMPRESSED_SIZE = 10
+_CD_UNCOMPRESSED_SIZE = 11
+_CD_FILENAME_LENGTH = 12
+_CD_EXTRA_FIELD_LENGTH = 13
+_CD_COMMENT_LENGTH = 14
+_CD_DISK_NUMBER_START = 15
+_CD_INTERNAL_FILE_ATTRIBUTES = 16
+_CD_EXTERNAL_FILE_ATTRIBUTES = 17
+_CD_LOCAL_HEADER_OFFSET = 18
+
+# The "local file header" structure, magic number, size, and indices
+# (section V.A in the format document)
+structFileHeader = "<4s2B4HL2L2H"
+stringFileHeader = "PK\003\004"
+sizeFileHeader = struct.calcsize(structFileHeader)
+
+_FH_SIGNATURE = 0
+_FH_EXTRACT_VERSION = 1
+_FH_EXTRACT_SYSTEM = 2
+_FH_GENERAL_PURPOSE_FLAG_BITS = 3
+_FH_COMPRESSION_METHOD = 4
+_FH_LAST_MOD_TIME = 5
+_FH_LAST_MOD_DATE = 6
+_FH_CRC = 7
+_FH_COMPRESSED_SIZE = 8
+_FH_UNCOMPRESSED_SIZE = 9
+_FH_FILENAME_LENGTH = 10
+_FH_EXTRA_FIELD_LENGTH = 11
+
+# The "Zip64 end of central directory locator" structure, magic number, and size
+structEndArchive64Locator = "<4sLQL"
+stringEndArchive64Locator = "PK\x06\x07"
+sizeEndCentDir64Locator = struct.calcsize(structEndArchive64Locator)
+
+# The "Zip64 end of central directory" record, magic number, size, and indices
+# (section V.G in the format document)
+structEndArchive64 = "<4sQ2H2L4Q"
+stringEndArchive64 = "PK\x06\x06"
+sizeEndCentDir64 = struct.calcsize(structEndArchive64)
+
+_CD64_SIGNATURE = 0
+_CD64_DIRECTORY_RECSIZE = 1
+_CD64_CREATE_VERSION = 2
+_CD64_EXTRACT_VERSION = 3
+_CD64_DISK_NUMBER = 4
+_CD64_DISK_NUMBER_START = 5
+_CD64_NUMBER_ENTRIES_THIS_DISK = 6
+_CD64_NUMBER_ENTRIES_TOTAL = 7
+_CD64_DIRECTORY_SIZE = 8
+_CD64_OFFSET_START_CENTDIR = 9
+
+def is_zipfile(filename):
+    """Quickly see if file is a ZIP file by checking the magic number."""
+    try:
+        fpin = open(filename, "rb")
+        endrec = _EndRecData(fpin)
+        fpin.close()
+        if endrec:
+            return True                 # file has correct magic number
+    except IOError:
+        pass
+    return False
+
+def _EndRecData64(fpin, offset, endrec):
+    """
+    Read the ZIP64 end-of-archive records and use that to update endrec
+    """
+    fpin.seek(offset - sizeEndCentDir64Locator, 2)
+    data = fpin.read(sizeEndCentDir64Locator)
+    sig, diskno, reloff, disks = struct.unpack(structEndArchive64Locator, data)
+    if sig != stringEndArchive64Locator:
+        return endrec
+
+    if diskno != 0 or disks != 1:
+        raise BadZipfile("zipfiles that span multiple disks are not supported")
+
+    # Assume no 'zip64 extensible data'
+    fpin.seek(offset - sizeEndCentDir64Locator - sizeEndCentDir64, 2)
+    data = fpin.read(sizeEndCentDir64)
+    sig, sz, create_version, read_version, disk_num, disk_dir, \
+            dircount, dircount2, dirsize, diroffset = \
+            struct.unpack(structEndArchive64, data)
+    if sig != stringEndArchive64:
+        return endrec
+
+    # Update the original endrec using data from the ZIP64 record
+    endrec[_ECD_SIGNATURE] = sig
+    endrec[_ECD_DISK_NUMBER] = disk_num
+    endrec[_ECD_DISK_START] = disk_dir
+    endrec[_ECD_ENTRIES_THIS_DISK] = dircount
+    endrec[_ECD_ENTRIES_TOTAL] = dircount2
+    endrec[_ECD_SIZE] = dirsize
+    endrec[_ECD_OFFSET] = diroffset
+    return endrec
+
+
+def _EndRecData(fpin):
+    """Return data from the "End of Central Directory" record, or None.
+
+    The data is a list of the nine items in the ZIP "End of central dir"
+    record followed by a tenth item, the file seek offset of this record."""
+
+    # Determine file size
+    fpin.seek(0, 2)
+    filesize = fpin.tell()
+
+    # Check to see if this is ZIP file with no archive comment (the
+    # "end of central directory" structure should be the last item in the
+    # file if this is the case).
+    try:
+        fpin.seek(-sizeEndCentDir, 2)
+    except IOError:
+        return None
+    data = fpin.read()
+    if data[0:4] == stringEndArchive and data[-2:] == "\000\000":
+        # the signature is correct and there's no comment, unpack structure
+        endrec = struct.unpack(structEndArchive, data)
+        endrec=list(endrec)
+
+        # Append a blank comment and record start offset
+        endrec.append("")
+        endrec.append(filesize - sizeEndCentDir)
+
+        # Try to read the "Zip64 end of central directory" structure
+        return _EndRecData64(fpin, -sizeEndCentDir, endrec)
+
+    # Either this is not a ZIP file, or it is a ZIP file with an archive
+    # comment.  Search the end of the file for the "end of central directory"
+    # record signature. The comment is the last item in the ZIP file and may be
+    # up to 64K long.  It is assumed that the "end of central directory" magic
+    # number does not appear in the comment.
+    maxCommentStart = max(filesize - (1 << 16) - sizeEndCentDir, 0)
+    fpin.seek(maxCommentStart, 0)
+    data = fpin.read()
+    start = data.rfind(stringEndArchive)
+    if start >= 0:
+        # found the magic number; attempt to unpack and interpret
+        recData = data[start:start+sizeEndCentDir]
+        endrec = list(struct.unpack(structEndArchive, recData))
+        comment = data[start+sizeEndCentDir:]
+        # check that comment length is correct
+        if endrec[_ECD_COMMENT_SIZE] == len(comment):
+            # Append the archive comment and start offset
+            endrec.append(comment)
+            endrec.append(maxCommentStart + start)
+
+            # Try to read the "Zip64 end of central directory" structure
+            return _EndRecData64(fpin, maxCommentStart + start - filesize,
+                                 endrec)
+
+    # Unable to find a valid end of central directory structure
+    return
+
+
+class ZipInfo (object):
+    """Class with attributes describing each file in the ZIP archive."""
+
+    __slots__ = (
+            'orig_filename',
+            'filename',
+            'date_time',
+            'compress_type',
+            'comment',
+            'extra',
+            'create_system',
+            'create_version',
+            'extract_version',
+            'reserved',
+            'flag_bits',
+            'volume',
+            'internal_attr',
+            'external_attr',
+            'header_offset',
+            'CRC',
+            'compress_size',
+            'file_size',
+            '_raw_time',
+        )
+
+    def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)):
+        self.orig_filename = filename   # Original file name in archive
+
+        # Terminate the file name at the first null byte.  Null bytes in file
+        # names are used as tricks by viruses in archives.
+        null_byte = filename.find(chr(0))
+        if null_byte >= 0:
+            filename = filename[0:null_byte]
+        # This is used to ensure paths in generated ZIP files always use
+        # forward slashes as the directory separator, as required by the
+        # ZIP format specification.
+        if os.sep != "/" and os.sep in filename:
+            filename = filename.replace(os.sep, "/")
+
+        self.filename = filename        # Normalized file name
+        self.date_time = date_time      # year, month, day, hour, min, sec
+        # Standard values:
+        self.compress_type = ZIP_STORED # Type of compression for the file
+        self.comment = ""               # Comment for each file
+        self.extra = ""                 # ZIP extra data
+        if sys.platform == 'win32':
+            self.create_system = 0          # System which created ZIP archive
+        else:
+            # Assume everything else is unix-y
+            self.create_system = 3          # System which created ZIP archive
+        self.create_version = 20        # Version which created ZIP archive
+        self.extract_version = 20       # Version needed to extract archive
+        self.reserved = 0               # Must be zero
+        self.flag_bits = 0              # ZIP flag bits
+        self.volume = 0                 # Volume number of file header
+        self.internal_attr = 0          # Internal attributes
+        self.external_attr = 0          # External file attributes
+        # Other attributes are set by class ZipFile:
+        # header_offset         Byte offset to the file header
+        # CRC                   CRC-32 of the uncompressed file
+        # compress_size         Size of the compressed file
+        # file_size             Size of the uncompressed file
+
+    def FileHeader(self):
+        """Return the per-file header as a string."""
+        dt = self.date_time
+        dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
+        dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
+        if self.flag_bits & 0x08:
+            # Set these to zero because we write them after the file data
+            CRC = compress_size = file_size = 0
+        else:
+            CRC = self.CRC
+            compress_size = self.compress_size
+            file_size = self.file_size
+
+        extra = self.extra
+
+        if file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT:
+            # File is larger than what fits into a 4 byte integer,
+            # fall back to the ZIP64 extension
+            fmt = '<HHQQ'
+            extra = extra + struct.pack(fmt,
+                    1, struct.calcsize(fmt)-4, file_size, compress_size)
+            file_size = 0xffffffff
+            compress_size = 0xffffffff
+            self.extract_version = max(45, self.extract_version)
+            self.create_version = max(45, self.extract_version)
+
+        filename, flag_bits = self._encodeFilenameFlags()
+        header = struct.pack(structFileHeader, stringFileHeader,
+                 self.extract_version, self.reserved, flag_bits,
+                 self.compress_type, dostime, dosdate, CRC,
+                 compress_size, file_size,
+                 len(filename), len(extra))
+        return header + filename + extra
+
+    def _encodeFilenameFlags(self):
+        if isinstance(self.filename, unicode):
+            try:
+                return self.filename.encode('ascii'), self.flag_bits
+            except UnicodeEncodeError:
+                return self.filename.encode('utf-8'), self.flag_bits | 0x800
+        else:
+            return self.filename, self.flag_bits
+
+    def _decodeFilename(self):
+        if self.flag_bits & 0x800:
+            return self.filename.decode('utf-8')
+        else:
+            return self.filename
+
+    def _decodeExtra(self):
+        # Try to decode the extra field.
+        extra = self.extra
+        unpack = struct.unpack
+        while extra:
+            tp, ln = unpack('<HH', extra[:4])
+            if tp == 1:
+                if ln >= 24:
+                    counts = unpack('<QQQ', extra[4:28])
+                elif ln == 16:
+                    counts = unpack('<QQ', extra[4:20])
+                elif ln == 8:
+                    counts = unpack('<Q', extra[4:12])
+                elif ln == 0:
+                    counts = ()
+                else:
+                    raise RuntimeError, "Corrupt extra field %s"%(ln,)
+
+                idx = 0
+
+                # ZIP64 extension (large files and/or large archives)
+                if self.file_size in (0xffffffffffffffffL, 0xffffffffL):
+                    self.file_size = counts[idx]
+                    idx += 1
+
+                if self.compress_size == 0xFFFFFFFFL:
+                    self.compress_size = counts[idx]
+                    idx += 1
+
+                if self.header_offset == 0xffffffffL:
+                    old = self.header_offset
+                    self.header_offset = counts[idx]
+                    idx+=1
+
+            extra = extra[ln+4:]
+
+
+class _ZipDecrypter:
+    """Class to handle decryption of files stored within a ZIP archive.
+
+    ZIP supports a password-based form of encryption. Even though known
+    plaintext attacks have been found against it, it is still useful
+    to be able to get data out of such a file.
+
+    Usage:
+        zd = _ZipDecrypter(mypwd)
+        plain_char = zd(cypher_char)
+        plain_text = map(zd, cypher_text)
+    """
+
+    def _GenerateCRCTable():
+        """Generate a CRC-32 table.
+
+        ZIP encryption uses the CRC32 one-byte primitive for scrambling some
+        internal keys. We noticed that a direct implementation is faster than
+        relying on binascii.crc32().
+        """
+        poly = 0xedb88320
+        table = [0] * 256
+        for i in range(256):
+            crc = i
+            for j in range(8):
+                if crc & 1:
+                    crc = ((crc >> 1) & 0x7FFFFFFF) ^ poly
+                else:
+                    crc = ((crc >> 1) & 0x7FFFFFFF)
+            table[i] = crc
+        return table
+    crctable = _GenerateCRCTable()
+
+    def _crc32(self, ch, crc):
+        """Compute the CRC32 primitive on one byte."""
+        return ((crc >> 8) & 0xffffff) ^ self.crctable[(crc ^ ord(ch)) & 0xff]
+
+    def __init__(self, pwd):
+        self.key0 = 305419896
+        self.key1 = 591751049
+        self.key2 = 878082192
+        for p in pwd:
+            self._UpdateKeys(p)
+
+    def _UpdateKeys(self, c):
+        self.key0 = self._crc32(c, self.key0)
+        self.key1 = (self.key1 + (self.key0 & 255)) & 4294967295
+        self.key1 = (self.key1 * 134775813 + 1) & 4294967295
+        self.key2 = self._crc32(chr((self.key1 >> 24) & 255), self.key2)
+
+    def __call__(self, c):
+        """Decrypt a single character."""
+        c = ord(c)
+        k = self.key2 | 2
+        c = c ^ (((k * (k^1)) >> 8) & 255)
+        c = chr(c)
+        self._UpdateKeys(c)
+        return c
+
+class ZipExtFile:
+    """File-like object for reading an archive member.
+       Is returned by ZipFile.open().
+    """
+
+    def __init__(self, fileobj, zipinfo, decrypt=None):
+        self.fileobj = fileobj
+        self.decrypter = decrypt
+        self.bytes_read = 0L
+        self.rawbuffer = ''
+        self.readbuffer = ''
+        self.linebuffer = ''
+        self.eof = False
+        self.univ_newlines = False
+        self.nlSeps = ("\n", )
+        self.lastdiscard = ''
+
+        self.compress_type = zipinfo.compress_type
+        self.compress_size = zipinfo.compress_size
+
+        self.closed  = False
+        self.mode    = "r"
+        self.name = zipinfo.filename
+
+        # read from compressed files in 64k blocks
+        self.compreadsize = 64*1024
+        if self.compress_type == ZIP_DEFLATED:
+            self.dc = zlib.decompressobj(-15)
+        elif self.compress_type == ZIP_BZIP2:
+            self.dc = bz2.BZ2Decompressor()
+            self.compreadsize = 900000
+
+    def set_univ_newlines(self, univ_newlines):
+        self.univ_newlines = univ_newlines
+
+        # pick line separator char(s) based on universal newlines flag
+        self.nlSeps = ("\n", )
+        if self.univ_newlines:
+            self.nlSeps = ("\r\n", "\r", "\n")
+
+    def __iter__(self):
+        return self
+
+    def next(self):
+        nextline = self.readline()
+        if not nextline:
+            raise StopIteration()
+
+        return nextline
+
+    def close(self):
+        self.closed = True
+
+    def _checkfornewline(self):
+        nl, nllen = -1, -1
+        if self.linebuffer:
+            # ugly check for cases where half of an \r\n pair was
+            # read on the last pass, and the \r was discarded.  In this
+            # case we just throw away the \n at the start of the buffer.
+            if (self.lastdiscard, self.linebuffer[0]) == ('\r','\n'):
+                self.linebuffer = self.linebuffer[1:]
+
+            for sep in self.nlSeps:
+                nl = self.linebuffer.find(sep)
+                if nl >= 0:
+                    nllen = len(sep)
+                    return nl, nllen
+
+        return nl, nllen
+
+    def readline(self, size = -1):
+        """Read a line with approx. size. If size is negative,
+           read a whole line.
+        """
+        if size < 0:
+            size = sys.maxint
+        elif size == 0:
+            return ''
+
+        # check for a newline already in buffer
+        nl, nllen = self._checkfornewline()
+
+        if nl >= 0:
+            # the next line was already in the buffer
+            nl = min(nl, size)
+        else:
+            # no line break in buffer - try to read more
+            size -= len(self.linebuffer)
+            while nl < 0 and size > 0:
+                buf = self.read(min(size, 100))
+                if not buf:
+                    break
+                self.linebuffer += buf
+                size -= len(buf)
+
+                # check for a newline in buffer
+                nl, nllen = self._checkfornewline()
+
+            # we either ran out of bytes in the file, or
+            # met the specified size limit without finding a newline,
+            # so return current buffer
+            if nl < 0:
+                s = self.linebuffer
+                self.linebuffer = ''
+                return s
+
+        buf = self.linebuffer[:nl]
+        self.lastdiscard = self.linebuffer[nl:nl + nllen]
+        self.linebuffer = self.linebuffer[nl + nllen:]
+
+        # line is always returned with \n as newline char (except possibly
+        # for a final incomplete line in the file, which is handled above).
+        return buf + "\n"
+
+    def readlines(self, sizehint = -1):
+        """Return a list with all (following) lines. The sizehint parameter
+        is ignored in this implementation.
+        """
+        result = []
+        while True:
+            line = self.readline()
+            if not line: break
+            result.append(line)
+        return result
+
+    def read(self, size = None):
+        # act like file() obj and return empty string if size is 0
+        if size == 0:
+            return ''
+
+        # determine read size
+        bytesToRead = self.compress_size - self.bytes_read
+
+        # adjust read size for encrypted files since the first 12 bytes
+        # are for the encryption/password information
+        if self.decrypter is not None:
+            bytesToRead -= 12
+
+        if size is not None and size >= 0:
+            if self.compress_type == ZIP_STORED:
+                lr = len(self.readbuffer)
+                bytesToRead = min(bytesToRead, size - lr)
+            else:
+                if len(self.readbuffer) > size:
+                    # the user has requested fewer bytes than we've already
+                    # pulled through the decompressor; don't read any more
+                    bytesToRead = 0
+                else:
+                    # user will use up the buffer, so read some more
+                    lr = len(self.rawbuffer)
+                    bytesToRead = min(bytesToRead, self.compreadsize - lr)
+
+        # avoid reading past end of file contents
+        if bytesToRead + self.bytes_read > self.compress_size:
+            bytesToRead = self.compress_size - self.bytes_read
+
+        # try to read from file (if necessary)
+        if bytesToRead > 0:
+            bytes = self.fileobj.read(bytesToRead)
+            self.bytes_read += len(bytes)
+            self.rawbuffer += bytes
+
+            # handle contents of raw buffer
+            if self.rawbuffer:
+                newdata = self.rawbuffer
+                self.rawbuffer = ''
+
+                # decrypt new data if we were given an object to handle that
+                if newdata and self.decrypter is not None:
+                    newdata = ''.join(map(self.decrypter, newdata))
+
+                # decompress newly read data if necessary
+                if newdata and self.compress_type != ZIP_STORED:
+                    newdata = self.dc.decompress(newdata)
+                    self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
+                    if self.eof and len(self.rawbuffer) == 0:
+                        # we're out of raw bytes (both from the file and
+                        # the local buffer); flush just to make sure the
+                        # decompressor is done
+                        try:
+                            newdata += self.dc.flush()
+                        except AttributeError:
+                            pass
+                        # prevent decompressor from being used again
+                        self.dc = None
+
+                self.readbuffer += newdata
+
+
+        # return what the user asked for
+        if size is None or len(self.readbuffer) <= size:
+            bytes = self.readbuffer
+            self.readbuffer = ''
+        else:
+            bytes = self.readbuffer[:size]
+            self.readbuffer = self.readbuffer[size:]
+
+        return bytes
+
+
+class ZipFile:
+    """ Class with methods to open, read, write, close, list zip files.
+
+    z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=False)
+
+    file: Either the path to the file, or a file-like object.
+          If it is a path, the file will be opened and closed by ZipFile.
+    mode: The mode can be either read "r", write "w" or append "a".
+    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
+                 or ZIP_BZIP2 (requires bz2).
+    allowZip64: if True ZipFile will create files with ZIP64 extensions when
+                needed, otherwise it will raise an exception when this would
+                be necessary.
+
+    """
+
+    fp = None                   # Set here since __del__ checks it
+
+    def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=False):
+        """Open the ZIP file with mode read "r", write "w" or append "a"."""
+        if mode not in ("r", "w", "a"):
+            raise RuntimeError('ZipFile() requires mode "r", "w", or "a"')
+
+        if compression == ZIP_STORED:
+            pass
+        elif compression == ZIP_DEFLATED:
+            if not zlib:
+                raise RuntimeError,\
+                      "Compression requires the (missing) zlib module"
+        elif compression == ZIP_BZIP2:
+            if not bz2:
+                raise RuntimeError,\
+                      "Compression requires the (missing) bz2 module"
+        else:
+            raise RuntimeError, "That compression method is not supported"
+
+        self._allowZip64 = allowZip64
+        self._didModify = False
+        self.debug = 0  # Level of printing: 0 through 3
+        self.NameToInfo = {}    # Find file info given name
+        self.filelist = []      # List of ZipInfo instances for archive
+        self.compression = compression  # Method of compression
+        self.mode = key = mode.replace('b', '')[0]
+        self.pwd = None
+        self.comment = ''
+
+        # Check if we were passed a file-like object
+        if isinstance(file, basestring):
+            self._filePassed = 0
+            self.filename = file
+            modeDict = {'r' : 'rb', 'w': 'wb', 'a' : 'r+b'}
+            try:
+                self.fp = open(file, modeDict[mode])
+            except IOError:
+                if mode == 'a':
+                    mode = key = 'w'
+                    self.fp = open(file, modeDict[mode])
+                else:
+                    raise
+        else:
+            self._filePassed = 1
+            self.fp = file
+            self.filename = getattr(file, 'name', None)
+
+        if key == 'r':
+            self._GetContents()
+        elif key == 'w':
+            pass
+        elif key == 'a':
+            try:                        # See if file is a zip file
+                self._RealGetContents()
+                # seek to start of directory and overwrite
+                self.fp.seek(self.start_dir, 0)
+            except BadZipfile:          # file is not a zip file, just append
+                self.fp.seek(0, 2)
+        else:
+            if not self._filePassed:
+                self.fp.close()
+                self.fp = None
+            raise RuntimeError, 'Mode must be "r", "w" or "a"'
+
+    def _GetContents(self):
+        """Read the directory, making sure we close the file if the format
+        is bad."""
+        try:
+            self._RealGetContents()
+        except BadZipfile:
+            if not self._filePassed:
+                self.fp.close()
+                self.fp = None
+            raise
+
+    def _RealGetContents(self):
+        """Read in the table of contents for the ZIP file."""
+        fp = self.fp
+        endrec = _EndRecData(fp)
+        if not endrec:
+            raise BadZipfile, "File is not a zip file"
+        if self.debug > 1:
+            print endrec
+        size_cd = endrec[_ECD_SIZE]             # bytes in central directory
+        offset_cd = endrec[_ECD_OFFSET]         # offset of central directory
+        self.comment = endrec[_ECD_COMMENT]     # archive comment
+
+        # "concat" is zero, unless zip was concatenated to another file
+        concat = endrec[_ECD_LOCATION] - size_cd - offset_cd
+        if endrec[_ECD_SIGNATURE] == stringEndArchive64:
+            # If Zip64 extension structures are present, account for them
+            concat -= (sizeEndCentDir64 + sizeEndCentDir64Locator)
+
+        if self.debug > 2:
+            inferred = concat + offset_cd
+            print "given, inferred, offset", offset_cd, inferred, concat
+        # self.start_dir:  Position of start of central directory
+        self.start_dir = offset_cd + concat
+        fp.seek(self.start_dir, 0)
+        data = fp.read(size_cd)
+        fp = cStringIO.StringIO(data)
+        total = 0
+        while total < size_cd:
+            centdir = fp.read(sizeCentralDir)
+            if centdir[0:4] != stringCentralDir:
+                raise BadZipfile, "Bad magic number for central directory"
+            centdir = struct.unpack(structCentralDir, centdir)
+            if self.debug > 2:
+                print centdir
+            filename = fp.read(centdir[_CD_FILENAME_LENGTH])
+            # Create ZipInfo instance to store file information
+            x = ZipInfo(filename)
+            x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
+            x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
+            x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET]
+            (x.create_version, x.create_system, x.extract_version, x.reserved,
+                x.flag_bits, x.compress_type, t, d,
+                x.CRC, x.compress_size, x.file_size) = centdir[1:12]
+            x.volume, x.internal_attr, x.external_attr = centdir[15:18]
+            # Convert date/time code to (year, month, day, hour, min, sec)
+            x._raw_time = t
+            x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
+                                     t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
+
+            x._decodeExtra()
+            x.header_offset = x.header_offset + concat
+            x.filename = x._decodeFilename()
+            self.filelist.append(x)
+            self.NameToInfo[x.filename] = x
+
+            # update total bytes read from central directory
+            total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH]
+                     + centdir[_CD_EXTRA_FIELD_LENGTH]
+                     + centdir[_CD_COMMENT_LENGTH])
+
+            if self.debug > 2:
+                print "total", total
+
+
+    def namelist(self):
+        """Return a list of file names in the archive."""
+        l = []
+        for data in self.filelist:
+            l.append(data.filename)
+        return l
+
+    def infolist(self):
+        """Return a list of class ZipInfo instances for files in the
+        archive."""
+        return self.filelist
+
+    def printdir(self):
+        """Print a table of contents for the zip file."""
+        print "%-46s %19s %12s" % ("File Name", "Modified    ", "Size")
+        for zinfo in self.filelist:
+            date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]
+            print "%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size)
+
+    def testzip(self):
+        """Read all the files and check the CRC."""
+        chunk_size = 2 ** 20
+        for zinfo in self.filelist:
+            try:
+                # Read by chunks, to avoid an OverflowError or a
+                # MemoryError with very large embedded files.
+                f = self.open(zinfo.filename, "r")
+                while f.read(chunk_size):     # Check CRC-32
+                    pass
+            except BadZipfile:
+                return zinfo.filename
+
+    def getinfo(self, name):
+        """Return the instance of ZipInfo given 'name'."""
+        info = self.NameToInfo.get(name)
+        if info is None:
+            raise KeyError(
+                'There is no item named %r in the archive' % name)
+
+        return info
+
+    def setpassword(self, pwd):
+        """Set default password for encrypted files."""
+        self.pwd = pwd
+
+    def read(self, name, pwd=None):
+        """Return file bytes (as a string) for name."""
+        return self.open(name, "r", pwd).read()
+
+    def open(self, name, mode="r", pwd=None):
+        """Return file-like object for 'name'."""
+        if mode not in ("r", "U", "rU"):
+            raise RuntimeError, 'open() requires mode "r", "U", or "rU"'
+        if not self.fp:
+            raise RuntimeError, \
+                  "Attempt to read ZIP archive that was already closed"
+
+        # Only open a new file for instances where we were not
+        # given a file object in the constructor
+        if self._filePassed:
+            zef_file = self.fp
+        else:
+            zef_file = open(self.filename, 'rb')
+
+        # Make sure we have an info object
+        if isinstance(name, ZipInfo):
+            # 'name' is already an info object
+            zinfo = name
+        else:
+            # Get info object for name
+            zinfo = self.getinfo(name)
+
+        zef_file.seek(zinfo.header_offset, 0)
+
+        # Skip the file header:
+        fheader = zef_file.read(sizeFileHeader)
+        if fheader[0:4] != stringFileHeader:
+            raise BadZipfile, "Bad magic number for file header"
+
+        fheader = struct.unpack(structFileHeader, fheader)
+        fname = zef_file.read(fheader[_FH_FILENAME_LENGTH])
+        if fheader[_FH_EXTRA_FIELD_LENGTH]:
+            zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
+
+        if fname != zinfo.orig_filename:
+            raise BadZipfile, \
+                      'File name in directory "%s" and header "%s" differ.' % (
+                          zinfo.orig_filename, fname)
+
+        # check for encrypted flag & handle password
+        is_encrypted = zinfo.flag_bits & 0x1
+        zd = None
+        if is_encrypted:
+            if not pwd:
+                pwd = self.pwd
+            if not pwd:
+                raise RuntimeError, "File %s is encrypted, " \
+                      "password required for extraction" % name
+
+            zd = _ZipDecrypter(pwd)
+            # The first 12 bytes in the cypher stream is an encryption header
+            #  used to strengthen the algorithm. The first 11 bytes are
+            #  completely random, while the 12th contains the MSB of the CRC,
+            #  or the MSB of the file time depending on the header type
+            #  and is used to check the correctness of the password.
+            bytes = zef_file.read(12)
+            h = map(zd, bytes[0:12])
+            if zinfo.flag_bits & 0x8:
+                # compare against the file type from extended local headers
+                check_byte = (zinfo._raw_time >> 8) & 0xff
+            else:
+                # compare against the CRC otherwise
+                check_byte = (zinfo.CRC >> 24) & 0xff
+            if ord(h[11]) != check_byte:
+                raise RuntimeError("Bad password for file", name)
+
+        # build and return a ZipExtFile
+        if zd is None:
+            zef = ZipExtFile(zef_file, zinfo)
+        else:
+            zef = ZipExtFile(zef_file, zinfo, zd)
+
+        # set universal newlines on ZipExtFile if necessary
+        if "U" in mode:
+            zef.set_univ_newlines(True)
+        return zef
+
+    def extract(self, member, path=None, pwd=None):
+        """Extract a member from the archive to the current working directory,
+           using its full name. Its file information is extracted as accurately
+           as possible. `member' may be a filename or a ZipInfo object. You can
+           specify a different directory using `path'.
+        """
+        if not isinstance(member, ZipInfo):
+            member = self.getinfo(member)
+
+        if path is None:
+            path = os.getcwd()
+
+        return self._extract_member(member, path, pwd)
+
+    def extractall(self, path=None, members=None, pwd=None):
+        """Extract all members from the archive to the current working
+           directory. `path' specifies a different directory to extract to.
+           `members' is optional and must be a subset of the list returned
+           by namelist().
+        """
+        if members is None:
+            members = self.namelist()
+
+        for zipinfo in members:
+            self.extract(zipinfo, path, pwd)
+
+    def _extract_member(self, member, targetpath, pwd):
+        """Extract the ZipInfo object 'member' to a physical
+           file on the path targetpath.
+        """
+        # build the destination pathname, replacing
+        # forward slashes to platform specific separators.
+        # Strip trailing path separator, unless it represents the root.
+        if (targetpath[-1:] in (os.path.sep, os.path.altsep)
+            and len(os.path.splitdrive(targetpath)[1]) > 1):
+            targetpath = targetpath[:-1]
+
+        # don't include leading "/" from file name if present
+        if member.filename[0] == '/':
+            targetpath = os.path.join(targetpath, member.filename[1:])
+        else:
+            targetpath = os.path.join(targetpath, member.filename)
+
+        targetpath = os.path.normpath(targetpath)
+
+        # Create all upper directories if necessary.
+        upperdirs = os.path.dirname(targetpath)
+        if upperdirs and not os.path.exists(upperdirs):
+            os.makedirs(upperdirs)
+
+        if member.filename[-1] == '/':
+            if not os.path.isdir(targetpath):
+                os.mkdir(targetpath)
+            return targetpath
+
+        source = self.open(member, pwd=pwd)
+        target = file(targetpath, "wb")
+        shutil.copyfileobj(source, target)
+        source.close()
+        target.close()
+
+        return targetpath
+
+    def _writecheck(self, zinfo):
+        """Check for errors before writing a file to the archive."""
+        if zinfo.filename in self.NameToInfo:
+            if self.debug:      # Warning for duplicate names
+                print "Duplicate name:", zinfo.filename
+        if self.mode not in ("w", "a"):
+            raise RuntimeError, 'write() requires mode "w" or "a"'
+        if not self.fp:
+            raise RuntimeError, \
+                  "Attempt to write ZIP archive that was already closed"
+        if zinfo.compress_type == ZIP_DEFLATED and not zlib:
+            raise RuntimeError, \
+                  "Compression requires the (missing) zlib module"
+        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
+            raise RuntimeError, \
+                  "Compression requires the (missing) bz2 module"
+        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
+            raise RuntimeError, \
+                  "That compression method is not supported"
+        if zinfo.file_size > ZIP64_LIMIT:
+            if not self._allowZip64:
+                raise LargeZipFile("Filesize would require ZIP64 extensions")
+        if zinfo.header_offset > ZIP64_LIMIT:
+            if not self._allowZip64:
+                raise LargeZipFile("Zipfile size would require ZIP64 extensions")
+
+    def write(self, filename, arcname=None, compress_type=None):
+        """Put the bytes from filename into the archive under the name
+        arcname."""
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to write to ZIP archive that was already closed")
+
+        st = os.stat(filename)
+        isdir = stat.S_ISDIR(st.st_mode)
+        mtime = time.localtime(st.st_mtime)
+        date_time = mtime[0:6]
+        # Create ZipInfo instance to store file information
+        if arcname is None:
+            arcname = filename
+        arcname = os.path.normpath(os.path.splitdrive(arcname)[1])
+        while arcname[0] in (os.sep, os.altsep):
+            arcname = arcname[1:]
+        if isdir:
+            arcname += '/'
+        zinfo = ZipInfo(arcname, date_time)
+        zinfo.external_attr = (st[0] & 0xFFFF) << 16L      # Unix attributes
+        if compress_type is None:
+            zinfo.compress_type = self.compression
+        else:
+            zinfo.compress_type = compress_type
+
+        zinfo.file_size = st.st_size
+        zinfo.flag_bits = 0x00
+        zinfo.header_offset = self.fp.tell()    # Start of header bytes
+
+        self._writecheck(zinfo)
+        self._didModify = True
+
+        if isdir:
+            zinfo.file_size = 0
+            zinfo.compress_size = 0
+            zinfo.CRC = 0
+            self.filelist.append(zinfo)
+            self.NameToInfo[zinfo.filename] = zinfo
+            self.fp.write(zinfo.FileHeader())
+            return
+
+        fp = open(filename, "rb")
+        # Must overwrite CRC and sizes with correct data later
+        zinfo.CRC = CRC = 0
+        zinfo.compress_size = compress_size = 0
+        zinfo.file_size = file_size = 0
+        self.fp.write(zinfo.FileHeader())
+        if zinfo.compress_type == ZIP_DEFLATED:
+            cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                 zlib.DEFLATED, -15)
+        elif zinfo.compress_type == ZIP_BZIP2:
+            cmpr = bz2.BZ2Compressor()
+        else:
+            cmpr = None
+        while 1:
+            buf = fp.read(1024 * 8)
+            if not buf:
+                break
+            file_size = file_size + len(buf)
+            CRC = crc32(buf, CRC) & 0xffffffff
+            if cmpr:
+                buf = cmpr.compress(buf)
+                compress_size = compress_size + len(buf)
+            self.fp.write(buf)
+        fp.close()
+        if cmpr:
+            buf = cmpr.flush()
+            compress_size = compress_size + len(buf)
+            self.fp.write(buf)
+            zinfo.compress_size = compress_size
+        else:
+            zinfo.compress_size = file_size
+        zinfo.CRC = CRC
+        zinfo.file_size = file_size
+        # Seek backwards and write CRC and file sizes
+        position = self.fp.tell()       # Preserve current position in file
+        self.fp.seek(zinfo.header_offset + 14, 0)
+        self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
+              zinfo.file_size))
+        self.fp.seek(position, 0)
+        self.filelist.append(zinfo)
+        self.NameToInfo[zinfo.filename] = zinfo
+
+    def writestr(self, zinfo_or_arcname, bytes):
+        """Write a file into the archive.  The contents is the string
+        'bytes'.  'zinfo_or_arcname' is either a ZipInfo instance or
+        the name of the file in the archive."""
+        if not isinstance(zinfo_or_arcname, ZipInfo):
+            zinfo = ZipInfo(filename=zinfo_or_arcname,
+                            date_time=time.localtime(time.time())[:6])
+            zinfo.compress_type = self.compression
+            zinfo.external_attr = 0600 << 16
+        else:
+            zinfo = zinfo_or_arcname
+
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to write to ZIP archive that was already closed")
+
+        zinfo.file_size = len(bytes)            # Uncompressed size
+        zinfo.header_offset = self.fp.tell()    # Start of header bytes
+        self._writecheck(zinfo)
+        self._didModify = True
+        zinfo.CRC = crc32(bytes) & 0xffffffff       # CRC-32 checksum
+        if zinfo.compress_type == ZIP_DEFLATED:
+            co = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                 zlib.DEFLATED, -15)
+            bytes = co.compress(bytes) + co.flush()
+            zinfo.compress_size = len(bytes)    # Compressed size
+        elif zinfo.compress_type == ZIP_BZIP2:
+            co = bz2.BZ2Compressor()
+            bytes = co.compress(bytes) + co.flush()
+            zinfo.compress_size = len(bytes)    # Compressed size
+        else:
+            zinfo.compress_size = zinfo.file_size
+        zinfo.header_offset = self.fp.tell()    # Start of header bytes
+        self.fp.write(zinfo.FileHeader())
+        self.fp.write(bytes)
+        self.fp.flush()
+        if zinfo.flag_bits & 0x08:
+            # Write CRC and file sizes after the file data
+            self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
+                  zinfo.file_size))
+        self.filelist.append(zinfo)
+        self.NameToInfo[zinfo.filename] = zinfo
+
+    def __del__(self):
+        """Call the "close()" method in case the user forgot."""
+        self.close()
+
+    def close(self):
+        """Close the file, and for mode "w" and "a" write the ending
+        records."""
+        if self.fp is None:
+            return
+
+        if self.mode in ("w", "a") and self._didModify: # write ending records
+            count = 0
+            pos1 = self.fp.tell()
+            for zinfo in self.filelist:         # write central directory
+                count = count + 1
+                dt = zinfo.date_time
+                dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
+                dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
+                extra = []
+                if zinfo.file_size > ZIP64_LIMIT \
+                        or zinfo.compress_size > ZIP64_LIMIT:
+                    extra.append(zinfo.file_size)
+                    extra.append(zinfo.compress_size)
+                    file_size = 0xffffffff
+                    compress_size = 0xffffffff
+                else:
+                    file_size = zinfo.file_size
+                    compress_size = zinfo.compress_size
+
+                if zinfo.header_offset > ZIP64_LIMIT:
+                    extra.append(zinfo.header_offset)
+                    header_offset = 0xffffffffL
+                else:
+                    header_offset = zinfo.header_offset
+
+                extra_data = zinfo.extra
+                if extra:
+                    # Append a ZIP64 field to the extra's
+                    extra_data = struct.pack(
+                            '<HH' + 'Q'*len(extra),
+                            1, 8*len(extra), *extra) + extra_data
+
+                    extract_version = max(45, zinfo.extract_version)
+                    create_version = max(45, zinfo.create_version)
+                else:
+                    extract_version = zinfo.extract_version
+                    create_version = zinfo.create_version
+
+                try:
+                    filename, flag_bits = zinfo._encodeFilenameFlags()
+                    centdir = struct.pack(structCentralDir,
+                     stringCentralDir, create_version,
+                     zinfo.create_system, extract_version, zinfo.reserved,
+                     flag_bits, zinfo.compress_type, dostime, dosdate,
+                     zinfo.CRC, compress_size, file_size,
+                     len(filename), len(extra_data), len(zinfo.comment),
+                     0, zinfo.internal_attr, zinfo.external_attr,
+                     header_offset)
+                except DeprecationWarning:
+                    print >>sys.stderr, (structCentralDir,
+                     stringCentralDir, create_version,
+                     zinfo.create_system, extract_version, zinfo.reserved,
+                     zinfo.flag_bits, zinfo.compress_type, dostime, dosdate,
+                     zinfo.CRC, compress_size, file_size,
+                     len(zinfo.filename), len(extra_data), len(zinfo.comment),
+                     0, zinfo.internal_attr, zinfo.external_attr,
+                     header_offset)
+                    raise
+                self.fp.write(centdir)
+                self.fp.write(filename)
+                self.fp.write(extra_data)
+                self.fp.write(zinfo.comment)
+
+            pos2 = self.fp.tell()
+            # Write end-of-zip-archive record
+            centDirCount = count
+            centDirSize = pos2 - pos1
+            centDirOffset = pos1
+            if (centDirCount >= ZIP_FILECOUNT_LIMIT or
+                centDirOffset > ZIP64_LIMIT or
+                centDirSize > ZIP64_LIMIT):
+                # Need to write the ZIP64 end-of-archive records
+                zip64endrec = struct.pack(
+                        structEndArchive64, stringEndArchive64,
+                        44, 45, 45, 0, 0, centDirCount, centDirCount,
+                        centDirSize, centDirOffset)
+                self.fp.write(zip64endrec)
+
+                zip64locrec = struct.pack(
+                        structEndArchive64Locator,
+                        stringEndArchive64Locator, 0, pos2, 1)
+                self.fp.write(zip64locrec)
+                centDirCount = min(centDirCount, 0xFFFF)
+                centDirSize = min(centDirSize, 0xFFFFFFFF)
+                centDirOffset = min(centDirOffset, 0xFFFFFFFF)
+
+            # check for valid comment length
+            if len(self.comment) >= ZIP_MAX_COMMENT:
+                if self.debug > 0:
+                    msg = 'Archive comment is too long; truncating to %d bytes' \
+                          % ZIP_MAX_COMMENT
+                self.comment = self.comment[:ZIP_MAX_COMMENT]
+
+            endrec = struct.pack(structEndArchive, stringEndArchive,
+                                 0, 0, centDirCount, centDirCount,
+                                 centDirSize, centDirOffset, len(self.comment))
+            self.fp.write(endrec)
+            self.fp.write(self.comment)
+            self.fp.flush()
+
+        if not self._filePassed:
+            self.fp.close()
+        self.fp = None
+
+
+class PyZipFile(ZipFile):
+    """Class to create ZIP archives with Python library files and packages."""
+
+    def writepy(self, pathname, basename = ""):
+        """Add all files from "pathname" to the ZIP archive.
+
+        If pathname is a package directory, search the directory and
+        all package subdirectories recursively for all *.py and enter
+        the modules into the archive.  If pathname is a plain
+        directory, listdir *.py and enter all modules.  Else, pathname
+        must be a Python *.py file and the module will be put into the
+        archive.  Added modules are always module.pyo or module.pyc.
+        This method will compile the module.py into module.pyc if
+        necessary.
+        """
+        dir, name = os.path.split(pathname)
+        if os.path.isdir(pathname):
+            initname = os.path.join(pathname, "__init__.py")
+            if os.path.isfile(initname):
+                # This is a package directory, add it
+                if basename:
+                    basename = "%s/%s" % (basename, name)
+                else:
+                    basename = name
+                if self.debug:
+                    print "Adding package in", pathname, "as", basename
+                fname, arcname = self._get_codename(initname[0:-3], basename)
+                if self.debug:
+                    print "Adding", arcname
+                self.write(fname, arcname)
+                dirlist = os.listdir(pathname)
+                dirlist.remove("__init__.py")
+                # Add all *.py files and package subdirectories
+                for filename in dirlist:
+                    path = os.path.join(pathname, filename)
+                    root, ext = os.path.splitext(filename)
+                    if os.path.isdir(path):
+                        if os.path.isfile(os.path.join(path, "__init__.py")):
+                            # This is a package directory, add it
+                            self.writepy(path, basename)  # Recursive call
+                    elif ext == ".py":
+                        fname, arcname = self._get_codename(path[0:-3],
+                                         basename)
+                        if self.debug:
+                            print "Adding", arcname
+                        self.write(fname, arcname)
+            else:
+                # This is NOT a package directory, add its files at top level
+                if self.debug:
+                    print "Adding files from directory", pathname
+                for filename in os.listdir(pathname):
+                    path = os.path.join(pathname, filename)
+                    root, ext = os.path.splitext(filename)
+                    if ext == ".py":
+                        fname, arcname = self._get_codename(path[0:-3],
+                                         basename)
+                        if self.debug:
+                            print "Adding", arcname
+                        self.write(fname, arcname)
+        else:
+            if pathname[-3:] != ".py":
+                raise RuntimeError, \
+                      'Files added with writepy() must end with ".py"'
+            fname, arcname = self._get_codename(pathname[0:-3], basename)
+            if self.debug:
+                print "Adding file", arcname
+            self.write(fname, arcname)
+
+    def _get_codename(self, pathname, basename):
+        """Return (filename, archivename) for the path.
+
+        Given a module name path, return the correct file path and
+        archive name, compiling if necessary.  For example, given
+        /python/lib/string, return (/python/lib/string.pyc, string).
+        """
+        file_py  = pathname + ".py"
+        file_pyc = pathname + ".pyc"
+        file_pyo = pathname + ".pyo"
+        if os.path.isfile(file_pyo) and \
+                            os.stat(file_pyo).st_mtime >= os.stat(file_py).st_mtime:
+            fname = file_pyo    # Use .pyo file
+        elif not os.path.isfile(file_pyc) or \
+             os.stat(file_pyc).st_mtime < os.stat(file_py).st_mtime:
+            import py_compile
+            if self.debug:
+                print "Compiling", file_py
+            try:
+                py_compile.compile(file_py, file_pyc, None, True)
+            except py_compile.PyCompileError,err:
+                print err.msg
+            fname = file_pyc
+        else:
+            fname = file_pyc
+        archivename = os.path.split(fname)[1]
+        if basename:
+            archivename = "%s/%s" % (basename, archivename)
+        return (fname, archivename)
+
+
+def main(args = None):
+    import textwrap
+    USAGE=textwrap.dedent("""\
+        Usage:
+            zipfile.py -l zipfile.zip        # Show listing of a zipfile
+            zipfile.py -t zipfile.zip        # Test if a zipfile is valid
+            zipfile.py -e zipfile.zip target # Extract zipfile into target dir
+            zipfile.py -c zipfile.zip src ... # Create zipfile from sources
+        """)
+    if args is None:
+        args = sys.argv[1:]
+
+    if not args or args[0] not in ('-l', '-c', '-e', '-t'):
+        print USAGE
+        sys.exit(1)
+
+    if args[0] == '-l':
+        if len(args) != 2:
+            print USAGE
+            sys.exit(1)
+        zf = ZipFile(args[1], 'r')
+        zf.printdir()
+        zf.close()
+
+    elif args[0] == '-t':
+        if len(args) != 2:
+            print USAGE
+            sys.exit(1)
+        zf = ZipFile(args[1], 'r')
+        zf.testzip()
+        print "Done testing"
+
+    elif args[0] == '-e':
+        if len(args) != 3:
+            print USAGE
+            sys.exit(1)
+
+        zf = ZipFile(args[1], 'r')
+        out = args[2]
+        for path in zf.namelist():
+            if path.startswith('./'):
+                tgt = os.path.join(out, path[2:])
+            else:
+                tgt = os.path.join(out, path)
+
+            tgtdir = os.path.dirname(tgt)
+            if not os.path.exists(tgtdir):
+                os.makedirs(tgtdir)
+            fp = open(tgt, 'wb')
+            fp.write(zf.read(path))
+            fp.close()
+        zf.close()
+
+    elif args[0] == '-c':
+        if len(args) < 3:
+            print USAGE
+            sys.exit(1)
+
+        def addToZip(zf, path, zippath):
+            if os.path.isfile(path):
+                zf.write(path, zippath, ZIP_DEFLATED)
+            elif os.path.isdir(path):
+                for nm in os.listdir(path):
+                    addToZip(zf,
+                            os.path.join(path, nm), os.path.join(zippath, nm))
+            # else: ignore
+
+        zf = ZipFile(args[1], 'w', allowZip64=True)
+        for src in args[2:]:
+            addToZip(zf, src, os.path.basename(src))
+
+        zf.close()
+
+if __name__ == "__main__":
+    main()
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zipfile266.diff	Sun Dec 19 23:23:24 2010 +0200
@@ -0,0 +1,126 @@
+--- /usr/lib/python2.6/zipfile.py	2010-07-05 14:48:38.000000000 +0300
++++ zipfile.py	2010-11-25 01:39:22.749743303 +0200
+@@ -1,6 +1,7 @@
+ """
+ Read and write ZIP files.
+ """
++# Improved by Chortos-2 in 2009 and 2010 (added bzip2 support)
+ import struct, os, time, sys, shutil
+ import binascii, cStringIO, stat
+ 
+@@ -11,8 +12,13 @@
+     zlib = None
+     crc32 = binascii.crc32
+ 
++try:
++    import bz2 # We may need its compression method
++except ImportError:
++    bz2 = None
++
+ __all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
+-           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile" ]
++           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
+ 
+ class BadZipfile(Exception):
+     pass
+@@ -33,6 +39,7 @@
+ # constants for Zip file compression methods
+ ZIP_STORED = 0
+ ZIP_DEFLATED = 8
++ZIP_BZIP2 = 12
+ # Other ZIP compression methods not supported
+ 
+ # Below are some formats and associated data for reading/writing headers using
+@@ -467,6 +474,9 @@
+         self.compreadsize = 64*1024
+         if self.compress_type == ZIP_DEFLATED:
+             self.dc = zlib.decompressobj(-15)
++        elif self.compress_type == ZIP_BZIP2:
++            self.dc = bz2.BZ2Decompressor()
++            self.compreadsize = 900000
+ 
+     def set_univ_newlines(self, univ_newlines):
+         self.univ_newlines = univ_newlines
+@@ -578,7 +588,7 @@
+             if self.compress_type == ZIP_STORED:
+                 lr = len(self.readbuffer)
+                 bytesToRead = min(bytesToRead, size - lr)
+-            elif self.compress_type == ZIP_DEFLATED:
++            else:
+                 if len(self.readbuffer) > size:
+                     # the user has requested fewer bytes than we've already
+                     # pulled through the decompressor; don't read any more
+@@ -608,14 +618,17 @@
+                     newdata = ''.join(map(self.decrypter, newdata))
+ 
+                 # decompress newly read data if necessary
+-                if newdata and self.compress_type == ZIP_DEFLATED:
++                if newdata and self.compress_type != ZIP_STORED:
+                     newdata = self.dc.decompress(newdata)
+-                    self.rawbuffer = self.dc.unconsumed_tail
++                    self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
+                     if self.eof and len(self.rawbuffer) == 0:
+                         # we're out of raw bytes (both from the file and
+                         # the local buffer); flush just to make sure the
+                         # decompressor is done
+-                        newdata += self.dc.flush()
++                        try:
++                            newdata += self.dc.flush()
++                        except AttributeError:
++                            pass
+                         # prevent decompressor from being used again
+                         self.dc = None
+ 
+@@ -641,7 +654,8 @@
+     file: Either the path to the file, or a file-like object.
+           If it is a path, the file will be opened and closed by ZipFile.
+     mode: The mode can be either read "r", write "w" or append "a".
+-    compression: ZIP_STORED (no compression) or ZIP_DEFLATED (requires zlib).
++    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
++                 or ZIP_BZIP2 (requires bz2).
+     allowZip64: if True ZipFile will create files with ZIP64 extensions when
+                 needed, otherwise it will raise an exception when this would
+                 be necessary.
+@@ -661,6 +675,10 @@
+             if not zlib:
+                 raise RuntimeError,\
+                       "Compression requires the (missing) zlib module"
++        elif compression == ZIP_BZIP2:
++            if not bz2:
++                raise RuntimeError,\
++                      "Compression requires the (missing) bz2 module"
+         else:
+             raise RuntimeError, "That compression method is not supported"
+ 
+@@ -987,7 +1005,10 @@
+         if zinfo.compress_type == ZIP_DEFLATED and not zlib:
+             raise RuntimeError, \
+                   "Compression requires the (missing) zlib module"
+-        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED):
++        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
++            raise RuntimeError, \
++                  "Compression requires the (missing) bz2 module"
++        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
+             raise RuntimeError, \
+                   "That compression method is not supported"
+         if zinfo.file_size > ZIP64_LIMIT:
+@@ -1048,6 +1069,8 @@
+         if zinfo.compress_type == ZIP_DEFLATED:
+             cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                  zlib.DEFLATED, -15)
++        elif zinfo.compress_type == ZIP_BZIP2:
++            cmpr = bz2.BZ2Compressor()
+         else:
+             cmpr = None
+         while 1:
+@@ -1105,6 +1128,10 @@
+                  zlib.DEFLATED, -15)
+             bytes = co.compress(bytes) + co.flush()
+             zinfo.compress_size = len(bytes)    # Compressed size
++        elif zinfo.compress_type == ZIP_BZIP2:
++            co = bz2.BZ2Compressor()
++            bytes = co.compress(bytes) + co.flush()
++            zinfo.compress_size = len(bytes)    # Compressed size
+         else:
+             zinfo.compress_size = zinfo.file_size
+         zinfo.header_offset = self.fp.tell()    # Start of header bytes
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zipfile27.py	Sun Dec 19 23:23:24 2010 +0200
@@ -0,0 +1,1468 @@
+"""
+Read and write ZIP files.
+"""
+# Improved by Chortos-2 in 2010 (added bzip2 support)
+import struct, os, time, sys, shutil
+import binascii, cStringIO, stat
+import io
+import re
+
+try:
+    import zlib # We may need its compression method
+    crc32 = zlib.crc32
+except ImportError:
+    zlib = None
+    crc32 = binascii.crc32
+
+try:
+    import bz2 # We may need its compression method
+except ImportError:
+    bz2 = None
+
+__all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
+           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
+
+class BadZipfile(Exception):
+    pass
+
+
+class LargeZipFile(Exception):
+    """
+    Raised when writing a zipfile, the zipfile requires ZIP64 extensions
+    and those extensions are disabled.
+    """
+
+error = BadZipfile      # The exception raised by this module
+
+ZIP64_LIMIT = (1 << 31) - 1
+ZIP_FILECOUNT_LIMIT = 1 << 16
+ZIP_MAX_COMMENT = (1 << 16) - 1
+
+# constants for Zip file compression methods
+ZIP_STORED = 0
+ZIP_DEFLATED = 8
+ZIP_BZIP2 = 12
+# Other ZIP compression methods not supported
+
+# Below are some formats and associated data for reading/writing headers using
+# the struct module.  The names and structures of headers/records are those used
+# in the PKWARE description of the ZIP file format:
+#     http://www.pkware.com/documents/casestudies/APPNOTE.TXT
+# (URL valid as of January 2008)
+
+# The "end of central directory" structure, magic number, size, and indices
+# (section V.I in the format document)
+structEndArchive = "<4s4H2LH"
+stringEndArchive = "PK\005\006"
+sizeEndCentDir = struct.calcsize(structEndArchive)
+
+_ECD_SIGNATURE = 0
+_ECD_DISK_NUMBER = 1
+_ECD_DISK_START = 2
+_ECD_ENTRIES_THIS_DISK = 3
+_ECD_ENTRIES_TOTAL = 4
+_ECD_SIZE = 5
+_ECD_OFFSET = 6
+_ECD_COMMENT_SIZE = 7
+# These last two indices are not part of the structure as defined in the
+# spec, but they are used internally by this module as a convenience
+_ECD_COMMENT = 8
+_ECD_LOCATION = 9
+
+# The "central directory" structure, magic number, size, and indices
+# of entries in the structure (section V.F in the format document)
+structCentralDir = "<4s4B4HL2L5H2L"
+stringCentralDir = "PK\001\002"
+sizeCentralDir = struct.calcsize(structCentralDir)
+
+# indexes of entries in the central directory structure
+_CD_SIGNATURE = 0
+_CD_CREATE_VERSION = 1
+_CD_CREATE_SYSTEM = 2
+_CD_EXTRACT_VERSION = 3
+_CD_EXTRACT_SYSTEM = 4
+_CD_FLAG_BITS = 5
+_CD_COMPRESS_TYPE = 6
+_CD_TIME = 7
+_CD_DATE = 8
+_CD_CRC = 9
+_CD_COMPRESSED_SIZE = 10
+_CD_UNCOMPRESSED_SIZE = 11
+_CD_FILENAME_LENGTH = 12
+_CD_EXTRA_FIELD_LENGTH = 13
+_CD_COMMENT_LENGTH = 14
+_CD_DISK_NUMBER_START = 15
+_CD_INTERNAL_FILE_ATTRIBUTES = 16
+_CD_EXTERNAL_FILE_ATTRIBUTES = 17
+_CD_LOCAL_HEADER_OFFSET = 18
+
+# The "local file header" structure, magic number, size, and indices
+# (section V.A in the format document)
+structFileHeader = "<4s2B4HL2L2H"
+stringFileHeader = "PK\003\004"
+sizeFileHeader = struct.calcsize(structFileHeader)
+
+_FH_SIGNATURE = 0
+_FH_EXTRACT_VERSION = 1
+_FH_EXTRACT_SYSTEM = 2
+_FH_GENERAL_PURPOSE_FLAG_BITS = 3
+_FH_COMPRESSION_METHOD = 4
+_FH_LAST_MOD_TIME = 5
+_FH_LAST_MOD_DATE = 6
+_FH_CRC = 7
+_FH_COMPRESSED_SIZE = 8
+_FH_UNCOMPRESSED_SIZE = 9
+_FH_FILENAME_LENGTH = 10
+_FH_EXTRA_FIELD_LENGTH = 11
+
+# The "Zip64 end of central directory locator" structure, magic number, and size
+structEndArchive64Locator = "<4sLQL"
+stringEndArchive64Locator = "PK\x06\x07"
+sizeEndCentDir64Locator = struct.calcsize(structEndArchive64Locator)
+
+# The "Zip64 end of central directory" record, magic number, size, and indices
+# (section V.G in the format document)
+structEndArchive64 = "<4sQ2H2L4Q"
+stringEndArchive64 = "PK\x06\x06"
+sizeEndCentDir64 = struct.calcsize(structEndArchive64)
+
+_CD64_SIGNATURE = 0
+_CD64_DIRECTORY_RECSIZE = 1
+_CD64_CREATE_VERSION = 2
+_CD64_EXTRACT_VERSION = 3
+_CD64_DISK_NUMBER = 4
+_CD64_DISK_NUMBER_START = 5
+_CD64_NUMBER_ENTRIES_THIS_DISK = 6
+_CD64_NUMBER_ENTRIES_TOTAL = 7
+_CD64_DIRECTORY_SIZE = 8
+_CD64_OFFSET_START_CENTDIR = 9
+
+def _check_zipfile(fp):
+    try:
+        if _EndRecData(fp):
+            return True         # file has correct magic number
+    except IOError:
+        pass
+    return False
+
+def is_zipfile(filename):
+    """Quickly see if a file is a ZIP file by checking the magic number.
+
+    The filename argument may be a file or file-like object too.
+    """
+    result = False
+    try:
+        if hasattr(filename, "read"):
+            result = _check_zipfile(fp=filename)
+        else:
+            with open(filename, "rb") as fp:
+                result = _check_zipfile(fp)
+    except IOError:
+        pass
+    return result
+
+def _EndRecData64(fpin, offset, endrec):
+    """
+    Read the ZIP64 end-of-archive records and use that to update endrec
+    """
+    try:
+        fpin.seek(offset - sizeEndCentDir64Locator, 2)
+    except IOError:
+        # If the seek fails, the file is not large enough to contain a ZIP64
+        # end-of-archive record, so just return the end record we were given.
+        return endrec
+
+    data = fpin.read(sizeEndCentDir64Locator)
+    sig, diskno, reloff, disks = struct.unpack(structEndArchive64Locator, data)
+    if sig != stringEndArchive64Locator:
+        return endrec
+
+    if diskno != 0 or disks != 1:
+        raise BadZipfile("zipfiles that span multiple disks are not supported")
+
+    # Assume no 'zip64 extensible data'
+    fpin.seek(offset - sizeEndCentDir64Locator - sizeEndCentDir64, 2)
+    data = fpin.read(sizeEndCentDir64)
+    sig, sz, create_version, read_version, disk_num, disk_dir, \
+            dircount, dircount2, dirsize, diroffset = \
+            struct.unpack(structEndArchive64, data)
+    if sig != stringEndArchive64:
+        return endrec
+
+    # Update the original endrec using data from the ZIP64 record
+    endrec[_ECD_SIGNATURE] = sig
+    endrec[_ECD_DISK_NUMBER] = disk_num
+    endrec[_ECD_DISK_START] = disk_dir
+    endrec[_ECD_ENTRIES_THIS_DISK] = dircount
+    endrec[_ECD_ENTRIES_TOTAL] = dircount2
+    endrec[_ECD_SIZE] = dirsize
+    endrec[_ECD_OFFSET] = diroffset
+    return endrec
+
+
+def _EndRecData(fpin):
+    """Return data from the "End of Central Directory" record, or None.
+
+    The data is a list of the nine items in the ZIP "End of central dir"
+    record followed by a tenth item, the file seek offset of this record."""
+
+    # Determine file size
+    fpin.seek(0, 2)
+    filesize = fpin.tell()
+
+    # Check to see if this is ZIP file with no archive comment (the
+    # "end of central directory" structure should be the last item in the
+    # file if this is the case).
+    try:
+        fpin.seek(-sizeEndCentDir, 2)
+    except IOError:
+        return None
+    data = fpin.read()
+    if data[0:4] == stringEndArchive and data[-2:] == "\000\000":
+        # the signature is correct and there's no comment, unpack structure
+        endrec = struct.unpack(structEndArchive, data)
+        endrec=list(endrec)
+
+        # Append a blank comment and record start offset
+        endrec.append("")
+        endrec.append(filesize - sizeEndCentDir)
+
+        # Try to read the "Zip64 end of central directory" structure
+        return _EndRecData64(fpin, -sizeEndCentDir, endrec)
+
+    # Either this is not a ZIP file, or it is a ZIP file with an archive
+    # comment.  Search the end of the file for the "end of central directory"
+    # record signature. The comment is the last item in the ZIP file and may be
+    # up to 64K long.  It is assumed that the "end of central directory" magic
+    # number does not appear in the comment.
+    maxCommentStart = max(filesize - (1 << 16) - sizeEndCentDir, 0)
+    fpin.seek(maxCommentStart, 0)
+    data = fpin.read()
+    start = data.rfind(stringEndArchive)
+    if start >= 0:
+        # found the magic number; attempt to unpack and interpret
+        recData = data[start:start+sizeEndCentDir]
+        endrec = list(struct.unpack(structEndArchive, recData))
+        comment = data[start+sizeEndCentDir:]
+        # check that comment length is correct
+        if endrec[_ECD_COMMENT_SIZE] == len(comment):
+            # Append the archive comment and start offset
+            endrec.append(comment)
+            endrec.append(maxCommentStart + start)
+
+            # Try to read the "Zip64 end of central directory" structure
+            return _EndRecData64(fpin, maxCommentStart + start - filesize,
+                                 endrec)
+
+    # Unable to find a valid end of central directory structure
+    return
+
+
+class ZipInfo (object):
+    """Class with attributes describing each file in the ZIP archive."""
+
+    __slots__ = (
+            'orig_filename',
+            'filename',
+            'date_time',
+            'compress_type',
+            'comment',
+            'extra',
+            'create_system',
+            'create_version',
+            'extract_version',
+            'reserved',
+            'flag_bits',
+            'volume',
+            'internal_attr',
+            'external_attr',
+            'header_offset',
+            'CRC',
+            'compress_size',
+            'file_size',
+            '_raw_time',
+        )
+
+    def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)):
+        self.orig_filename = filename   # Original file name in archive
+
+        # Terminate the file name at the first null byte.  Null bytes in file
+        # names are used as tricks by viruses in archives.
+        null_byte = filename.find(chr(0))
+        if null_byte >= 0:
+            filename = filename[0:null_byte]
+        # This is used to ensure paths in generated ZIP files always use
+        # forward slashes as the directory separator, as required by the
+        # ZIP format specification.
+        if os.sep != "/" and os.sep in filename:
+            filename = filename.replace(os.sep, "/")
+
+        self.filename = filename        # Normalized file name
+        self.date_time = date_time      # year, month, day, hour, min, sec
+        # Standard values:
+        self.compress_type = ZIP_STORED # Type of compression for the file
+        self.comment = ""               # Comment for each file
+        self.extra = ""                 # ZIP extra data
+        if sys.platform == 'win32':
+            self.create_system = 0          # System which created ZIP archive
+        else:
+            # Assume everything else is unix-y
+            self.create_system = 3          # System which created ZIP archive
+        self.create_version = 20        # Version which created ZIP archive
+        self.extract_version = 20       # Version needed to extract archive
+        self.reserved = 0               # Must be zero
+        self.flag_bits = 0              # ZIP flag bits
+        self.volume = 0                 # Volume number of file header
+        self.internal_attr = 0          # Internal attributes
+        self.external_attr = 0          # External file attributes
+        # Other attributes are set by class ZipFile:
+        # header_offset         Byte offset to the file header
+        # CRC                   CRC-32 of the uncompressed file
+        # compress_size         Size of the compressed file
+        # file_size             Size of the uncompressed file
+
+    def FileHeader(self):
+        """Return the per-file header as a string."""
+        dt = self.date_time
+        dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
+        dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
+        if self.flag_bits & 0x08:
+            # Set these to zero because we write them after the file data
+            CRC = compress_size = file_size = 0
+        else:
+            CRC = self.CRC
+            compress_size = self.compress_size
+            file_size = self.file_size
+
+        extra = self.extra
+
+        if file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT:
+            # File is larger than what fits into a 4 byte integer,
+            # fall back to the ZIP64 extension
+            fmt = '<HHQQ'
+            extra = extra + struct.pack(fmt,
+                    1, struct.calcsize(fmt)-4, file_size, compress_size)
+            file_size = 0xffffffff
+            compress_size = 0xffffffff
+            self.extract_version = max(45, self.extract_version)
+            self.create_version = max(45, self.extract_version)
+
+        filename, flag_bits = self._encodeFilenameFlags()
+        header = struct.pack(structFileHeader, stringFileHeader,
+                 self.extract_version, self.reserved, flag_bits,
+                 self.compress_type, dostime, dosdate, CRC,
+                 compress_size, file_size,
+                 len(filename), len(extra))
+        return header + filename + extra
+
+    def _encodeFilenameFlags(self):
+        if isinstance(self.filename, unicode):
+            try:
+                return self.filename.encode('ascii'), self.flag_bits
+            except UnicodeEncodeError:
+                return self.filename.encode('utf-8'), self.flag_bits | 0x800
+        else:
+            return self.filename, self.flag_bits
+
+    def _decodeFilename(self):
+        if self.flag_bits & 0x800:
+            return self.filename.decode('utf-8')
+        else:
+            return self.filename
+
+    def _decodeExtra(self):
+        # Try to decode the extra field.
+        extra = self.extra
+        unpack = struct.unpack
+        while extra:
+            tp, ln = unpack('<HH', extra[:4])
+            if tp == 1:
+                if ln >= 24:
+                    counts = unpack('<QQQ', extra[4:28])
+                elif ln == 16:
+                    counts = unpack('<QQ', extra[4:20])
+                elif ln == 8:
+                    counts = unpack('<Q', extra[4:12])
+                elif ln == 0:
+                    counts = ()
+                else:
+                    raise RuntimeError, "Corrupt extra field %s"%(ln,)
+
+                idx = 0
+
+                # ZIP64 extension (large files and/or large archives)
+                if self.file_size in (0xffffffffffffffffL, 0xffffffffL):
+                    self.file_size = counts[idx]
+                    idx += 1
+
+                if self.compress_size == 0xFFFFFFFFL:
+                    self.compress_size = counts[idx]
+                    idx += 1
+
+                if self.header_offset == 0xffffffffL:
+                    old = self.header_offset
+                    self.header_offset = counts[idx]
+                    idx+=1
+
+            extra = extra[ln+4:]
+
+
+class _ZipDecrypter:
+    """Class to handle decryption of files stored within a ZIP archive.
+
+    ZIP supports a password-based form of encryption. Even though known
+    plaintext attacks have been found against it, it is still useful
+    to be able to get data out of such a file.
+
+    Usage:
+        zd = _ZipDecrypter(mypwd)
+        plain_char = zd(cypher_char)
+        plain_text = map(zd, cypher_text)
+    """
+
+    def _GenerateCRCTable():
+        """Generate a CRC-32 table.
+
+        ZIP encryption uses the CRC32 one-byte primitive for scrambling some
+        internal keys. We noticed that a direct implementation is faster than
+        relying on binascii.crc32().
+        """
+        poly = 0xedb88320
+        table = [0] * 256
+        for i in range(256):
+            crc = i
+            for j in range(8):
+                if crc & 1:
+                    crc = ((crc >> 1) & 0x7FFFFFFF) ^ poly
+                else:
+                    crc = ((crc >> 1) & 0x7FFFFFFF)
+            table[i] = crc
+        return table
+    crctable = _GenerateCRCTable()
+
+    def _crc32(self, ch, crc):
+        """Compute the CRC32 primitive on one byte."""
+        return ((crc >> 8) & 0xffffff) ^ self.crctable[(crc ^ ord(ch)) & 0xff]
+
+    def __init__(self, pwd):
+        self.key0 = 305419896
+        self.key1 = 591751049
+        self.key2 = 878082192
+        for p in pwd:
+            self._UpdateKeys(p)
+
+    def _UpdateKeys(self, c):
+        self.key0 = self._crc32(c, self.key0)
+        self.key1 = (self.key1 + (self.key0 & 255)) & 4294967295
+        self.key1 = (self.key1 * 134775813 + 1) & 4294967295
+        self.key2 = self._crc32(chr((self.key1 >> 24) & 255), self.key2)
+
+    def __call__(self, c):
+        """Decrypt a single character."""
+        c = ord(c)
+        k = self.key2 | 2
+        c = c ^ (((k * (k^1)) >> 8) & 255)
+        c = chr(c)
+        self._UpdateKeys(c)
+        return c
+
+class ZipExtFile(io.BufferedIOBase):
+    """File-like object for reading an archive member.
+       Is returned by ZipFile.open().
+    """
+
+    # Max size supported by decompressor.
+    MAX_N = 1 << 31 - 1
+
+    # Read from compressed files in 4k blocks.
+    MIN_READ_SIZE = 4096
+
+    # Search for universal newlines or line chunks.
+    PATTERN = re.compile(r'^(?P<chunk>[^\r\n]+)|(?P<newline>\n|\r\n?)')
+
+    def __init__(self, fileobj, mode, zipinfo, decrypter=None):
+        self._fileobj = fileobj
+        self._decrypter = decrypter
+
+        self._compress_type = zipinfo.compress_type
+        self._compress_size = zipinfo.compress_size
+        self._compress_left = zipinfo.compress_size
+
+        if self._compress_type == ZIP_DEFLATED:
+            self._decompressor = zlib.decompressobj(-15)
+        elif self._compress_type == ZIP_BZIP2:
+            self._decompressor = bz2.BZ2Decompressor()
+            self.MIN_READ_SIZE = 900000
+        self._unconsumed = ''
+
+        self._readbuffer = ''
+        self._offset = 0
+
+        self._universal = 'U' in mode
+        self.newlines = None
+
+        # Adjust read size for encrypted files since the first 12 bytes
+        # are for the encryption/password information.
+        if self._decrypter is not None:
+            self._compress_left -= 12
+
+        self.mode = mode
+        self.name = zipinfo.filename
+
+        if hasattr(zipinfo, 'CRC'):
+            self._expected_crc = zipinfo.CRC
+            self._running_crc = crc32(b'') & 0xffffffff
+        else:
+            self._expected_crc = None
+
+    def readline(self, limit=-1):
+        """Read and return a line from the stream.
+
+        If limit is specified, at most limit bytes will be read.
+        """
+
+        if not self._universal and limit < 0:
+            # Shortcut common case - newline found in buffer.
+            i = self._readbuffer.find('\n', self._offset) + 1
+            if i > 0:
+                line = self._readbuffer[self._offset: i]
+                self._offset = i
+                return line
+
+        if not self._universal:
+            return io.BufferedIOBase.readline(self, limit)
+
+        line = ''
+        while limit < 0 or len(line) < limit:
+            readahead = self.peek(2)
+            if readahead == '':
+                return line
+
+            #
+            # Search for universal newlines or line chunks.
+            #
+            # The pattern returns either a line chunk or a newline, but not
+            # both. Combined with peek(2), we are assured that the sequence
+            # '\r\n' is always retrieved completely and never split into
+            # separate newlines - '\r', '\n' due to coincidental readaheads.
+            #
+            match = self.PATTERN.search(readahead)
+            newline = match.group('newline')
+            if newline is not None:
+                if self.newlines is None:
+                    self.newlines = []
+                if newline not in self.newlines:
+                    self.newlines.append(newline)
+                self._offset += len(newline)
+                return line + '\n'
+
+            chunk = match.group('chunk')
+            if limit >= 0:
+                chunk = chunk[: limit - len(line)]
+
+            self._offset += len(chunk)
+            line += chunk
+
+        return line
+
+    def peek(self, n=1):
+        """Returns buffered bytes without advancing the position."""
+        if n > len(self._readbuffer) - self._offset:
+            chunk = self.read(n)
+            self._offset -= len(chunk)
+
+        # Return up to 512 bytes to reduce allocation overhead for tight loops.
+        return self._readbuffer[self._offset: self._offset + 512]
+
+    def readable(self):
+        return True
+
+    def read(self, n=-1):
+        """Read and return up to n bytes.
+        If the argument is omitted, None, or negative, data is read and returned until EOF is reached..
+        """
+        buf = ''
+        if n is None:
+            n = -1
+        while True:
+            if n < 0:
+                data = self.read1(n)
+            elif n > len(buf):
+                data = self.read1(n - len(buf))
+            else:
+                return buf
+            if len(data) == 0:
+                return buf
+            buf += data
+
+    def _update_crc(self, newdata, eof):
+        # Update the CRC using the given data.
+        if self._expected_crc is None:
+            # No need to compute the CRC if we don't have a reference value
+            return
+        self._running_crc = crc32(newdata, self._running_crc) & 0xffffffff
+        # Check the CRC if we're at the end of the file
+        if eof and self._running_crc != self._expected_crc:
+            raise BadZipfile("Bad CRC-32 for file %r" % self.name)
+
+    def read1(self, n):
+        """Read up to n bytes with at most one read() system call."""
+
+        # Simplify algorithm (branching) by transforming negative n to large n.
+        if n < 0 or n is None:
+            n = self.MAX_N
+
+        # Bytes available in read buffer.
+        len_readbuffer = len(self._readbuffer) - self._offset
+
+        # Read from file.
+        if self._compress_left > 0 and n > len_readbuffer + len(self._unconsumed):
+            nbytes = n - len_readbuffer - len(self._unconsumed)
+            nbytes = max(nbytes, self.MIN_READ_SIZE)
+            nbytes = min(nbytes, self._compress_left)
+
+            data = self._fileobj.read(nbytes)
+            self._compress_left -= len(data)
+
+            if data and self._decrypter is not None:
+                data = ''.join(map(self._decrypter, data))
+
+            if self._compress_type == ZIP_STORED:
+                self._update_crc(data, eof=(self._compress_left==0))
+                self._readbuffer = self._readbuffer[self._offset:] + data
+                self._offset = 0
+            else:
+                # Prepare deflated bytes for decompression.
+                self._unconsumed += data
+
+        # Handle unconsumed data.
+        if (len(self._unconsumed) > 0 and n > len_readbuffer and
+            self._compress_type == ZIP_DEFLATED):
+            data = self._decompressor.decompress(
+                self._unconsumed,
+                max(n - len_readbuffer, self.MIN_READ_SIZE)
+            )
+
+            self._unconsumed = self._decompressor.unconsumed_tail
+            eof = len(self._unconsumed) == 0 and self._compress_left == 0
+            if eof:
+                data += self._decompressor.flush()
+
+            self._update_crc(data, eof=eof)
+            self._readbuffer = self._readbuffer[self._offset:] + data
+            self._offset = 0
+        elif (len(self._unconsumed) > 0 and n > len_readbuffer and
+            self._compress_type == ZIP_BZIP2):
+            data = self._decompressor.decompress(self._unconsumed)
+
+            self._unconsumed = ''
+            self._readbuffer = self._readbuffer[self._offset:] + data
+            self._offset = 0
+
+        # Read from buffer.
+        data = self._readbuffer[self._offset: self._offset + n]
+        self._offset += len(data)
+        return data
+
+
+
+class ZipFile:
+    """ Class with methods to open, read, write, close, list zip files.
+
+    z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=False)
+
+    file: Either the path to the file, or a file-like object.
+          If it is a path, the file will be opened and closed by ZipFile.
+    mode: The mode can be either read "r", write "w" or append "a".
+    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
+                 or ZIP_BZIP2 (requires bz2).
+    allowZip64: if True ZipFile will create files with ZIP64 extensions when
+                needed, otherwise it will raise an exception when this would
+                be necessary.
+
+    """
+
+    fp = None                   # Set here since __del__ checks it
+
+    def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=False):
+        """Open the ZIP file with mode read "r", write "w" or append "a"."""
+        if mode not in ("r", "w", "a"):
+            raise RuntimeError('ZipFile() requires mode "r", "w", or "a"')
+
+        if compression == ZIP_STORED:
+            pass
+        elif compression == ZIP_DEFLATED:
+            if not zlib:
+                raise RuntimeError,\
+                      "Compression requires the (missing) zlib module"
+        elif compression == ZIP_BZIP2:
+            if not bz2:
+                raise RuntimeError,\
+                      "Compression requires the (missing) bz2 module"
+        else:
+            raise RuntimeError, "That compression method is not supported"
+
+        self._allowZip64 = allowZip64
+        self._didModify = False
+        self.debug = 0  # Level of printing: 0 through 3
+        self.NameToInfo = {}    # Find file info given name
+        self.filelist = []      # List of ZipInfo instances for archive
+        self.compression = compression  # Method of compression
+        self.mode = key = mode.replace('b', '')[0]
+        self.pwd = None
+        self.comment = ''
+
+        # Check if we were passed a file-like object
+        if isinstance(file, basestring):
+            self._filePassed = 0
+            self.filename = file
+            modeDict = {'r' : 'rb', 'w': 'wb', 'a' : 'r+b'}
+            try:
+                self.fp = open(file, modeDict[mode])
+            except IOError:
+                if mode == 'a':
+                    mode = key = 'w'
+                    self.fp = open(file, modeDict[mode])
+                else:
+                    raise
+        else:
+            self._filePassed = 1
+            self.fp = file
+            self.filename = getattr(file, 'name', None)
+
+        if key == 'r':
+            self._GetContents()
+        elif key == 'w':
+            # set the modified flag so central directory gets written
+            # even if no files are added to the archive
+            self._didModify = True
+        elif key == 'a':
+            try:
+                # See if file is a zip file
+                self._RealGetContents()
+                # seek to start of directory and overwrite
+                self.fp.seek(self.start_dir, 0)
+            except BadZipfile:
+                # file is not a zip file, just append
+                self.fp.seek(0, 2)
+
+                # set the modified flag so central directory gets written
+                # even if no files are added to the archive
+                self._didModify = True
+        else:
+            if not self._filePassed:
+                self.fp.close()
+                self.fp = None
+            raise RuntimeError, 'Mode must be "r", "w" or "a"'
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, value, traceback):
+        self.close()
+
+    def _GetContents(self):
+        """Read the directory, making sure we close the file if the format
+        is bad."""
+        try:
+            self._RealGetContents()
+        except BadZipfile:
+            if not self._filePassed:
+                self.fp.close()
+                self.fp = None
+            raise
+
+    def _RealGetContents(self):
+        """Read in the table of contents for the ZIP file."""
+        fp = self.fp
+        try:
+            endrec = _EndRecData(fp)
+        except IOError:
+            raise BadZipfile("File is not a zip file")
+        if not endrec:
+            raise BadZipfile, "File is not a zip file"
+        if self.debug > 1:
+            print endrec
+        size_cd = endrec[_ECD_SIZE]             # bytes in central directory
+        offset_cd = endrec[_ECD_OFFSET]         # offset of central directory
+        self.comment = endrec[_ECD_COMMENT]     # archive comment
+
+        # "concat" is zero, unless zip was concatenated to another file
+        concat = endrec[_ECD_LOCATION] - size_cd - offset_cd
+        if endrec[_ECD_SIGNATURE] == stringEndArchive64:
+            # If Zip64 extension structures are present, account for them
+            concat -= (sizeEndCentDir64 + sizeEndCentDir64Locator)
+
+        if self.debug > 2:
+            inferred = concat + offset_cd
+            print "given, inferred, offset", offset_cd, inferred, concat
+        # self.start_dir:  Position of start of central directory
+        self.start_dir = offset_cd + concat
+        fp.seek(self.start_dir, 0)
+        data = fp.read(size_cd)
+        fp = cStringIO.StringIO(data)
+        total = 0
+        while total < size_cd:
+            centdir = fp.read(sizeCentralDir)
+            if centdir[0:4] != stringCentralDir:
+                raise BadZipfile, "Bad magic number for central directory"
+            centdir = struct.unpack(structCentralDir, centdir)
+            if self.debug > 2:
+                print centdir
+            filename = fp.read(centdir[_CD_FILENAME_LENGTH])
+            # Create ZipInfo instance to store file information
+            x = ZipInfo(filename)
+            x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
+            x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
+            x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET]
+            (x.create_version, x.create_system, x.extract_version, x.reserved,
+                x.flag_bits, x.compress_type, t, d,
+                x.CRC, x.compress_size, x.file_size) = centdir[1:12]
+            x.volume, x.internal_attr, x.external_attr = centdir[15:18]
+            # Convert date/time code to (year, month, day, hour, min, sec)
+            x._raw_time = t
+            x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
+                                     t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
+
+            x._decodeExtra()
+            x.header_offset = x.header_offset + concat
+            x.filename = x._decodeFilename()
+            self.filelist.append(x)
+            self.NameToInfo[x.filename] = x
+
+            # update total bytes read from central directory
+            total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH]
+                     + centdir[_CD_EXTRA_FIELD_LENGTH]
+                     + centdir[_CD_COMMENT_LENGTH])
+
+            if self.debug > 2:
+                print "total", total
+
+
+    def namelist(self):
+        """Return a list of file names in the archive."""
+        l = []
+        for data in self.filelist:
+            l.append(data.filename)
+        return l
+
+    def infolist(self):
+        """Return a list of class ZipInfo instances for files in the
+        archive."""
+        return self.filelist
+
+    def printdir(self):
+        """Print a table of contents for the zip file."""
+        print "%-46s %19s %12s" % ("File Name", "Modified    ", "Size")
+        for zinfo in self.filelist:
+            date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]
+            print "%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size)
+
+    def testzip(self):
+        """Read all the files and check the CRC."""
+        chunk_size = 2 ** 20
+        for zinfo in self.filelist:
+            try:
+                # Read by chunks, to avoid an OverflowError or a
+                # MemoryError with very large embedded files.
+                f = self.open(zinfo.filename, "r")
+                while f.read(chunk_size):     # Check CRC-32
+                    pass
+            except BadZipfile:
+                return zinfo.filename
+
+    def getinfo(self, name):
+        """Return the instance of ZipInfo given 'name'."""
+        info = self.NameToInfo.get(name)
+        if info is None:
+            raise KeyError(
+                'There is no item named %r in the archive' % name)
+
+        return info
+
+    def setpassword(self, pwd):
+        """Set default password for encrypted files."""
+        self.pwd = pwd
+
+    def read(self, name, pwd=None):
+        """Return file bytes (as a string) for name."""
+        return self.open(name, "r", pwd).read()
+
+    def open(self, name, mode="r", pwd=None):
+        """Return file-like object for 'name'."""
+        if mode not in ("r", "U", "rU"):
+            raise RuntimeError, 'open() requires mode "r", "U", or "rU"'
+        if not self.fp:
+            raise RuntimeError, \
+                  "Attempt to read ZIP archive that was already closed"
+
+        # Only open a new file for instances where we were not
+        # given a file object in the constructor
+        if self._filePassed:
+            zef_file = self.fp
+        else:
+            zef_file = open(self.filename, 'rb')
+
+        # Make sure we have an info object
+        if isinstance(name, ZipInfo):
+            # 'name' is already an info object
+            zinfo = name
+        else:
+            # Get info object for name
+            zinfo = self.getinfo(name)
+
+        zef_file.seek(zinfo.header_offset, 0)
+
+        # Skip the file header:
+        fheader = zef_file.read(sizeFileHeader)
+        if fheader[0:4] != stringFileHeader:
+            raise BadZipfile, "Bad magic number for file header"
+
+        fheader = struct.unpack(structFileHeader, fheader)
+        fname = zef_file.read(fheader[_FH_FILENAME_LENGTH])
+        if fheader[_FH_EXTRA_FIELD_LENGTH]:
+            zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
+
+        if fname != zinfo.orig_filename:
+            raise BadZipfile, \
+                      'File name in directory "%s" and header "%s" differ.' % (
+                          zinfo.orig_filename, fname)
+
+        # check for encrypted flag & handle password
+        is_encrypted = zinfo.flag_bits & 0x1
+        zd = None
+        if is_encrypted:
+            if not pwd:
+                pwd = self.pwd
+            if not pwd:
+                raise RuntimeError, "File %s is encrypted, " \
+                      "password required for extraction" % name
+
+            zd = _ZipDecrypter(pwd)
+            # The first 12 bytes in the cypher stream is an encryption header
+            #  used to strengthen the algorithm. The first 11 bytes are
+            #  completely random, while the 12th contains the MSB of the CRC,
+            #  or the MSB of the file time depending on the header type
+            #  and is used to check the correctness of the password.
+            bytes = zef_file.read(12)
+            h = map(zd, bytes[0:12])
+            if zinfo.flag_bits & 0x8:
+                # compare against the file type from extended local headers
+                check_byte = (zinfo._raw_time >> 8) & 0xff
+            else:
+                # compare against the CRC otherwise
+                check_byte = (zinfo.CRC >> 24) & 0xff
+            if ord(h[11]) != check_byte:
+                raise RuntimeError("Bad password for file", name)
+
+        return  ZipExtFile(zef_file, mode, zinfo, zd)
+
+    def extract(self, member, path=None, pwd=None):
+        """Extract a member from the archive to the current working directory,
+           using its full name. Its file information is extracted as accurately
+           as possible. `member' may be a filename or a ZipInfo object. You can
+           specify a different directory using `path'.
+        """
+        if not isinstance(member, ZipInfo):
+            member = self.getinfo(member)
+
+        if path is None:
+            path = os.getcwd()
+
+        return self._extract_member(member, path, pwd)
+
+    def extractall(self, path=None, members=None, pwd=None):
+        """Extract all members from the archive to the current working
+           directory. `path' specifies a different directory to extract to.
+           `members' is optional and must be a subset of the list returned
+           by namelist().
+        """
+        if members is None:
+            members = self.namelist()
+
+        for zipinfo in members:
+            self.extract(zipinfo, path, pwd)
+
+    def _extract_member(self, member, targetpath, pwd):
+        """Extract the ZipInfo object 'member' to a physical
+           file on the path targetpath.
+        """
+        # build the destination pathname, replacing
+        # forward slashes to platform specific separators.
+        # Strip trailing path separator, unless it represents the root.
+        if (targetpath[-1:] in (os.path.sep, os.path.altsep)
+            and len(os.path.splitdrive(targetpath)[1]) > 1):
+            targetpath = targetpath[:-1]
+
+        # don't include leading "/" from file name if present
+        if member.filename[0] == '/':
+            targetpath = os.path.join(targetpath, member.filename[1:])
+        else:
+            targetpath = os.path.join(targetpath, member.filename)
+
+        targetpath = os.path.normpath(targetpath)
+
+        # Create all upper directories if necessary.
+        upperdirs = os.path.dirname(targetpath)
+        if upperdirs and not os.path.exists(upperdirs):
+            os.makedirs(upperdirs)
+
+        if member.filename[-1] == '/':
+            if not os.path.isdir(targetpath):
+                os.mkdir(targetpath)
+            return targetpath
+
+        source = self.open(member, pwd=pwd)
+        target = file(targetpath, "wb")
+        shutil.copyfileobj(source, target)
+        source.close()
+        target.close()
+
+        return targetpath
+
+    def _writecheck(self, zinfo):
+        """Check for errors before writing a file to the archive."""
+        if zinfo.filename in self.NameToInfo:
+            if self.debug:      # Warning for duplicate names
+                print "Duplicate name:", zinfo.filename
+        if self.mode not in ("w", "a"):
+            raise RuntimeError, 'write() requires mode "w" or "a"'
+        if not self.fp:
+            raise RuntimeError, \
+                  "Attempt to write ZIP archive that was already closed"
+        if zinfo.compress_type == ZIP_DEFLATED and not zlib:
+            raise RuntimeError, \
+                  "Compression requires the (missing) zlib module"
+        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
+            raise RuntimeError, \
+                  "Compression requires the (missing) bz2 module"
+        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
+            raise RuntimeError, \
+                  "That compression method is not supported"
+        if zinfo.file_size > ZIP64_LIMIT:
+            if not self._allowZip64:
+                raise LargeZipFile("Filesize would require ZIP64 extensions")
+        if zinfo.header_offset > ZIP64_LIMIT:
+            if not self._allowZip64:
+                raise LargeZipFile("Zipfile size would require ZIP64 extensions")
+
+    def write(self, filename, arcname=None, compress_type=None):
+        """Put the bytes from filename into the archive under the name
+        arcname."""
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to write to ZIP archive that was already closed")
+
+        st = os.stat(filename)
+        isdir = stat.S_ISDIR(st.st_mode)
+        mtime = time.localtime(st.st_mtime)
+        date_time = mtime[0:6]
+        # Create ZipInfo instance to store file information
+        if arcname is None:
+            arcname = filename
+        arcname = os.path.normpath(os.path.splitdrive(arcname)[1])
+        while arcname[0] in (os.sep, os.altsep):
+            arcname = arcname[1:]
+        if isdir:
+            arcname += '/'
+        zinfo = ZipInfo(arcname, date_time)
+        zinfo.external_attr = (st[0] & 0xFFFF) << 16L      # Unix attributes
+        if compress_type is None:
+            zinfo.compress_type = self.compression
+        else:
+            zinfo.compress_type = compress_type
+
+        zinfo.file_size = st.st_size
+        zinfo.flag_bits = 0x00
+        zinfo.header_offset = self.fp.tell()    # Start of header bytes
+
+        self._writecheck(zinfo)
+        self._didModify = True
+
+        if isdir:
+            zinfo.file_size = 0
+            zinfo.compress_size = 0
+            zinfo.CRC = 0
+            self.filelist.append(zinfo)
+            self.NameToInfo[zinfo.filename] = zinfo
+            self.fp.write(zinfo.FileHeader())
+            return
+
+        with open(filename, "rb") as fp:
+            # Must overwrite CRC and sizes with correct data later
+            zinfo.CRC = CRC = 0
+            zinfo.compress_size = compress_size = 0
+            zinfo.file_size = file_size = 0
+            self.fp.write(zinfo.FileHeader())
+            if zinfo.compress_type == ZIP_DEFLATED:
+                cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                     zlib.DEFLATED, -15)
+            elif zinfo.compress_type == ZIP_BZIP2:
+                cmpr = bz2.BZ2Compressor()
+            else:
+                cmpr = None
+            while 1:
+                buf = fp.read(1024 * 8)
+                if not buf:
+                    break
+                file_size = file_size + len(buf)
+                CRC = crc32(buf, CRC) & 0xffffffff
+                if cmpr:
+                    buf = cmpr.compress(buf)
+                    compress_size = compress_size + len(buf)
+                self.fp.write(buf)
+        if cmpr:
+            buf = cmpr.flush()
+            compress_size = compress_size + len(buf)
+            self.fp.write(buf)
+            zinfo.compress_size = compress_size
+        else:
+            zinfo.compress_size = file_size
+        zinfo.CRC = CRC
+        zinfo.file_size = file_size
+        # Seek backwards and write CRC and file sizes
+        position = self.fp.tell()       # Preserve current position in file
+        self.fp.seek(zinfo.header_offset + 14, 0)
+        self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
+              zinfo.file_size))
+        self.fp.seek(position, 0)
+        self.filelist.append(zinfo)
+        self.NameToInfo[zinfo.filename] = zinfo
+
+    def writestr(self, zinfo_or_arcname, bytes, compress_type=None):
+        """Write a file into the archive.  The contents is the string
+        'bytes'.  'zinfo_or_arcname' is either a ZipInfo instance or
+        the name of the file in the archive."""
+        if not isinstance(zinfo_or_arcname, ZipInfo):
+            zinfo = ZipInfo(filename=zinfo_or_arcname,
+                            date_time=time.localtime(time.time())[:6])
+
+            zinfo.compress_type = self.compression
+            zinfo.external_attr = 0600 << 16
+        else:
+            zinfo = zinfo_or_arcname
+
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to write to ZIP archive that was already closed")
+
+        if compress_type is not None:
+            zinfo.compress_type = compress_type
+
+        zinfo.file_size = len(bytes)            # Uncompressed size
+        zinfo.header_offset = self.fp.tell()    # Start of header bytes
+        self._writecheck(zinfo)
+        self._didModify = True
+        zinfo.CRC = crc32(bytes) & 0xffffffff       # CRC-32 checksum
+        if zinfo.compress_type == ZIP_DEFLATED:
+            co = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                 zlib.DEFLATED, -15)
+            bytes = co.compress(bytes) + co.flush()
+            zinfo.compress_size = len(bytes)    # Compressed size
+        elif zinfo.compress_type == ZIP_BZIP2:
+            co = bz2.BZ2Compressor()
+            bytes = co.compress(bytes) + co.flush()
+            zinfo.compress_size = len(bytes)    # Compressed size
+        else:
+            zinfo.compress_size = zinfo.file_size
+        zinfo.header_offset = self.fp.tell()    # Start of header bytes
+        self.fp.write(zinfo.FileHeader())
+        self.fp.write(bytes)
+        self.fp.flush()
+        if zinfo.flag_bits & 0x08:
+            # Write CRC and file sizes after the file data
+            self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
+                  zinfo.file_size))
+        self.filelist.append(zinfo)
+        self.NameToInfo[zinfo.filename] = zinfo
+
+    def __del__(self):
+        """Call the "close()" method in case the user forgot."""
+        self.close()
+
+    def close(self):
+        """Close the file, and for mode "w" and "a" write the ending
+        records."""
+        if self.fp is None:
+            return
+
+        if self.mode in ("w", "a") and self._didModify: # write ending records
+            count = 0
+            pos1 = self.fp.tell()
+            for zinfo in self.filelist:         # write central directory
+                count = count + 1
+                dt = zinfo.date_time
+                dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
+                dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
+                extra = []
+                if zinfo.file_size > ZIP64_LIMIT \
+                        or zinfo.compress_size > ZIP64_LIMIT:
+                    extra.append(zinfo.file_size)
+                    extra.append(zinfo.compress_size)
+                    file_size = 0xffffffff
+                    compress_size = 0xffffffff
+                else:
+                    file_size = zinfo.file_size
+                    compress_size = zinfo.compress_size
+
+                if zinfo.header_offset > ZIP64_LIMIT:
+                    extra.append(zinfo.header_offset)
+                    header_offset = 0xffffffffL
+                else:
+                    header_offset = zinfo.header_offset
+
+                extra_data = zinfo.extra
+                if extra:
+                    # Append a ZIP64 field to the extra's
+                    extra_data = struct.pack(
+                            '<HH' + 'Q'*len(extra),
+                            1, 8*len(extra), *extra) + extra_data
+
+                    extract_version = max(45, zinfo.extract_version)
+                    create_version = max(45, zinfo.create_version)
+                else:
+                    extract_version = zinfo.extract_version
+                    create_version = zinfo.create_version
+
+                try:
+                    filename, flag_bits = zinfo._encodeFilenameFlags()
+                    centdir = struct.pack(structCentralDir,
+                     stringCentralDir, create_version,
+                     zinfo.create_system, extract_version, zinfo.reserved,
+                     flag_bits, zinfo.compress_type, dostime, dosdate,
+                     zinfo.CRC, compress_size, file_size,
+                     len(filename), len(extra_data), len(zinfo.comment),
+                     0, zinfo.internal_attr, zinfo.external_attr,
+                     header_offset)
+                except DeprecationWarning:
+                    print >>sys.stderr, (structCentralDir,
+                     stringCentralDir, create_version,
+                     zinfo.create_system, extract_version, zinfo.reserved,
+                     zinfo.flag_bits, zinfo.compress_type, dostime, dosdate,
+                     zinfo.CRC, compress_size, file_size,
+                     len(zinfo.filename), len(extra_data), len(zinfo.comment),
+                     0, zinfo.internal_attr, zinfo.external_attr,
+                     header_offset)
+                    raise
+                self.fp.write(centdir)
+                self.fp.write(filename)
+                self.fp.write(extra_data)
+                self.fp.write(zinfo.comment)
+
+            pos2 = self.fp.tell()
+            # Write end-of-zip-archive record
+            centDirCount = count
+            centDirSize = pos2 - pos1
+            centDirOffset = pos1
+            if (centDirCount >= ZIP_FILECOUNT_LIMIT or
+                centDirOffset > ZIP64_LIMIT or
+                centDirSize > ZIP64_LIMIT):
+                # Need to write the ZIP64 end-of-archive records
+                zip64endrec = struct.pack(
+                        structEndArchive64, stringEndArchive64,
+                        44, 45, 45, 0, 0, centDirCount, centDirCount,
+                        centDirSize, centDirOffset)
+                self.fp.write(zip64endrec)
+
+                zip64locrec = struct.pack(
+                        structEndArchive64Locator,
+                        stringEndArchive64Locator, 0, pos2, 1)
+                self.fp.write(zip64locrec)
+                centDirCount = min(centDirCount, 0xFFFF)
+                centDirSize = min(centDirSize, 0xFFFFFFFF)
+                centDirOffset = min(centDirOffset, 0xFFFFFFFF)
+
+            # check for valid comment length
+            if len(self.comment) >= ZIP_MAX_COMMENT:
+                if self.debug > 0:
+                    msg = 'Archive comment is too long; truncating to %d bytes' \
+                          % ZIP_MAX_COMMENT
+                self.comment = self.comment[:ZIP_MAX_COMMENT]
+
+            endrec = struct.pack(structEndArchive, stringEndArchive,
+                                 0, 0, centDirCount, centDirCount,
+                                 centDirSize, centDirOffset, len(self.comment))
+            self.fp.write(endrec)
+            self.fp.write(self.comment)
+            self.fp.flush()
+
+        if not self._filePassed:
+            self.fp.close()
+        self.fp = None
+
+
+class PyZipFile(ZipFile):
+    """Class to create ZIP archives with Python library files and packages."""
+
+    def writepy(self, pathname, basename = ""):
+        """Add all files from "pathname" to the ZIP archive.
+
+        If pathname is a package directory, search the directory and
+        all package subdirectories recursively for all *.py and enter
+        the modules into the archive.  If pathname is a plain
+        directory, listdir *.py and enter all modules.  Else, pathname
+        must be a Python *.py file and the module will be put into the
+        archive.  Added modules are always module.pyo or module.pyc.
+        This method will compile the module.py into module.pyc if
+        necessary.
+        """
+        dir, name = os.path.split(pathname)
+        if os.path.isdir(pathname):
+            initname = os.path.join(pathname, "__init__.py")
+            if os.path.isfile(initname):
+                # This is a package directory, add it
+                if basename:
+                    basename = "%s/%s" % (basename, name)
+                else:
+                    basename = name
+                if self.debug:
+                    print "Adding package in", pathname, "as", basename
+                fname, arcname = self._get_codename(initname[0:-3], basename)
+                if self.debug:
+                    print "Adding", arcname
+                self.write(fname, arcname)
+                dirlist = os.listdir(pathname)
+                dirlist.remove("__init__.py")
+                # Add all *.py files and package subdirectories
+                for filename in dirlist:
+                    path = os.path.join(pathname, filename)
+                    root, ext = os.path.splitext(filename)
+                    if os.path.isdir(path):
+                        if os.path.isfile(os.path.join(path, "__init__.py")):
+                            # This is a package directory, add it
+                            self.writepy(path, basename)  # Recursive call
+                    elif ext == ".py":
+                        fname, arcname = self._get_codename(path[0:-3],
+                                         basename)
+                        if self.debug:
+                            print "Adding", arcname
+                        self.write(fname, arcname)
+            else:
+                # This is NOT a package directory, add its files at top level
+                if self.debug:
+                    print "Adding files from directory", pathname
+                for filename in os.listdir(pathname):
+                    path = os.path.join(pathname, filename)
+                    root, ext = os.path.splitext(filename)
+                    if ext == ".py":
+                        fname, arcname = self._get_codename(path[0:-3],
+                                         basename)
+                        if self.debug:
+                            print "Adding", arcname
+                        self.write(fname, arcname)
+        else:
+            if pathname[-3:] != ".py":
+                raise RuntimeError, \
+                      'Files added with writepy() must end with ".py"'
+            fname, arcname = self._get_codename(pathname[0:-3], basename)
+            if self.debug:
+                print "Adding file", arcname
+            self.write(fname, arcname)
+
+    def _get_codename(self, pathname, basename):
+        """Return (filename, archivename) for the path.
+
+        Given a module name path, return the correct file path and
+        archive name, compiling if necessary.  For example, given
+        /python/lib/string, return (/python/lib/string.pyc, string).
+        """
+        file_py  = pathname + ".py"
+        file_pyc = pathname + ".pyc"
+        file_pyo = pathname + ".pyo"
+        if os.path.isfile(file_pyo) and \
+                            os.stat(file_pyo).st_mtime >= os.stat(file_py).st_mtime:
+            fname = file_pyo    # Use .pyo file
+        elif not os.path.isfile(file_pyc) or \
+             os.stat(file_pyc).st_mtime < os.stat(file_py).st_mtime:
+            import py_compile
+            if self.debug:
+                print "Compiling", file_py
+            try:
+                py_compile.compile(file_py, file_pyc, None, True)
+            except py_compile.PyCompileError,err:
+                print err.msg
+            fname = file_pyc
+        else:
+            fname = file_pyc
+        archivename = os.path.split(fname)[1]
+        if basename:
+            archivename = "%s/%s" % (basename, archivename)
+        return (fname, archivename)
+
+
+def main(args = None):
+    import textwrap
+    USAGE=textwrap.dedent("""\
+        Usage:
+            zipfile.py -l zipfile.zip        # Show listing of a zipfile
+            zipfile.py -t zipfile.zip        # Test if a zipfile is valid
+            zipfile.py -e zipfile.zip target # Extract zipfile into target dir
+            zipfile.py -c zipfile.zip src ... # Create zipfile from sources
+        """)
+    if args is None:
+        args = sys.argv[1:]
+
+    if not args or args[0] not in ('-l', '-c', '-e', '-t'):
+        print USAGE
+        sys.exit(1)
+
+    if args[0] == '-l':
+        if len(args) != 2:
+            print USAGE
+            sys.exit(1)
+        zf = ZipFile(args[1], 'r')
+        zf.printdir()
+        zf.close()
+
+    elif args[0] == '-t':
+        if len(args) != 2:
+            print USAGE
+            sys.exit(1)
+        zf = ZipFile(args[1], 'r')
+        badfile = zf.testzip()
+        if badfile:
+            print("The following enclosed file is corrupted: {!r}".format(badfile))
+        print "Done testing"
+
+    elif args[0] == '-e':
+        if len(args) != 3:
+            print USAGE
+            sys.exit(1)
+
+        zf = ZipFile(args[1], 'r')
+        out = args[2]
+        for path in zf.namelist():
+            if path.startswith('./'):
+                tgt = os.path.join(out, path[2:])
+            else:
+                tgt = os.path.join(out, path)
+
+            tgtdir = os.path.dirname(tgt)
+            if not os.path.exists(tgtdir):
+                os.makedirs(tgtdir)
+            with open(tgt, 'wb') as fp:
+                fp.write(zf.read(path))
+        zf.close()
+
+    elif args[0] == '-c':
+        if len(args) < 3:
+            print USAGE
+            sys.exit(1)
+
+        def addToZip(zf, path, zippath):
+            if os.path.isfile(path):
+                zf.write(path, zippath, ZIP_DEFLATED)
+            elif os.path.isdir(path):
+                for nm in os.listdir(path):
+                    addToZip(zf,
+                            os.path.join(path, nm), os.path.join(zippath, nm))
+            # else: ignore
+
+        zf = ZipFile(args[1], 'w', allowZip64=True)
+        for src in args[2:]:
+            addToZip(zf, src, os.path.basename(src))
+
+        zf.close()
+
+if __name__ == "__main__":
+    main()
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zipfile271.diff	Sun Dec 19 23:23:24 2010 +0200
@@ -0,0 +1,110 @@
+--- /usr/local/lib/python2.7/zipfile.py	2010-11-29 00:56:38.000000000 +0000
++++ zipfile271.py	2010-11-29 01:20:17.000000000 +0000
+@@ -1,6 +1,7 @@
+ """
+ Read and write ZIP files.
+ """
++# Improved by Chortos-2 in 2010 (added bzip2 support)
+ import struct, os, time, sys, shutil
+ import binascii, cStringIO, stat
+ import io
+@@ -13,8 +14,13 @@
+     zlib = None
+     crc32 = binascii.crc32
+ 
++try:
++    import bz2 # We may need its compression method
++except ImportError:
++    bz2 = None
++
+ __all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
+-           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile" ]
++           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
+ 
+ class BadZipfile(Exception):
+     pass
+@@ -35,6 +41,7 @@
+ # constants for Zip file compression methods
+ ZIP_STORED = 0
+ ZIP_DEFLATED = 8
++ZIP_BZIP2 = 12
+ # Other ZIP compression methods not supported
+ 
+ # Below are some formats and associated data for reading/writing headers using
+@@ -483,6 +490,9 @@
+ 
+         if self._compress_type == ZIP_DEFLATED:
+             self._decompressor = zlib.decompressobj(-15)
++        elif self._compress_type == ZIP_BZIP2:
++            self._decompressor = bz2.BZ2Decompressor()
++            self.MIN_READ_SIZE = 900000
+         self._unconsumed = ''
+ 
+         self._readbuffer = ''
+@@ -641,6 +651,13 @@
+             self._update_crc(data, eof=eof)
+             self._readbuffer = self._readbuffer[self._offset:] + data
+             self._offset = 0
++        elif (len(self._unconsumed) > 0 and n > len_readbuffer and
++            self._compress_type == ZIP_BZIP2):
++            data = self._decompressor.decompress(self._unconsumed)
++
++            self._unconsumed = ''
++            self._readbuffer = self._readbuffer[self._offset:] + data
++            self._offset = 0
+ 
+         # Read from buffer.
+         data = self._readbuffer[self._offset: self._offset + n]
+@@ -657,7 +674,8 @@
+     file: Either the path to the file, or a file-like object.
+           If it is a path, the file will be opened and closed by ZipFile.
+     mode: The mode can be either read "r", write "w" or append "a".
+-    compression: ZIP_STORED (no compression) or ZIP_DEFLATED (requires zlib).
++    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
++                 or ZIP_BZIP2 (requires bz2).
+     allowZip64: if True ZipFile will create files with ZIP64 extensions when
+                 needed, otherwise it will raise an exception when this would
+                 be necessary.
+@@ -677,6 +695,10 @@
+             if not zlib:
+                 raise RuntimeError,\
+                       "Compression requires the (missing) zlib module"
++        elif compression == ZIP_BZIP2:
++            if not bz2:
++                raise RuntimeError,\
++                      "Compression requires the (missing) bz2 module"
+         else:
+             raise RuntimeError, "That compression method is not supported"
+ 
+@@ -1011,7 +1033,10 @@
+         if zinfo.compress_type == ZIP_DEFLATED and not zlib:
+             raise RuntimeError, \
+                   "Compression requires the (missing) zlib module"
+-        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED):
++        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
++            raise RuntimeError, \
++                  "Compression requires the (missing) bz2 module"
++        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
+             raise RuntimeError, \
+                   "That compression method is not supported"
+         if zinfo.file_size > ZIP64_LIMIT:
+@@ -1072,6 +1097,8 @@
+             if zinfo.compress_type == ZIP_DEFLATED:
+                 cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                      zlib.DEFLATED, -15)
++            elif zinfo.compress_type == ZIP_BZIP2:
++                cmpr = bz2.BZ2Compressor()
+             else:
+                 cmpr = None
+             while 1:
+@@ -1132,6 +1159,10 @@
+                  zlib.DEFLATED, -15)
+             bytes = co.compress(bytes) + co.flush()
+             zinfo.compress_size = len(bytes)    # Compressed size
++        elif zinfo.compress_type == ZIP_BZIP2:
++            co = bz2.BZ2Compressor()
++            bytes = co.compress(bytes) + co.flush()
++            zinfo.compress_size = len(bytes)    # Compressed size
+         else:
+             zinfo.compress_size = zinfo.file_size
+         zinfo.header_offset = self.fp.tell()    # Start of header bytes
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zipfile31.py	Sun Dec 19 23:23:24 2010 +0200
@@ -0,0 +1,1493 @@
+"""
+Read and write ZIP files.
+
+XXX references to utf-8 need further investigation.
+"""
+# Improved by Chortos-2 in 2010 (added bzip2 support)
+import struct, os, time, sys, shutil
+import binascii, io, stat
+
+try:
+    import zlib # We may need its compression method
+    crc32 = zlib.crc32
+except ImportError:
+    zlib = None
+    crc32 = binascii.crc32
+
+try:
+    import bz2 # We may need its compression method
+except ImportError:
+    bz2 = None
+
+__all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
+           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
+
+class BadZipfile(Exception):
+    pass
+
+
+class LargeZipFile(Exception):
+    """
+    Raised when writing a zipfile, the zipfile requires ZIP64 extensions
+    and those extensions are disabled.
+    """
+
+error = BadZipfile      # The exception raised by this module
+
+ZIP64_LIMIT = (1 << 31) - 1
+ZIP_FILECOUNT_LIMIT = 1 << 16
+ZIP_MAX_COMMENT = (1 << 16) - 1
+
+# constants for Zip file compression methods
+ZIP_STORED = 0
+ZIP_DEFLATED = 8
+ZIP_BZIP2 = 12
+# Other ZIP compression methods not supported
+
+# Below are some formats and associated data for reading/writing headers using
+# the struct module.  The names and structures of headers/records are those used
+# in the PKWARE description of the ZIP file format:
+#     http://www.pkware.com/documents/casestudies/APPNOTE.TXT
+# (URL valid as of January 2008)
+
+# The "end of central directory" structure, magic number, size, and indices
+# (section V.I in the format document)
+structEndArchive = b"<4s4H2LH"
+stringEndArchive = b"PK\005\006"
+sizeEndCentDir = struct.calcsize(structEndArchive)
+
+_ECD_SIGNATURE = 0
+_ECD_DISK_NUMBER = 1
+_ECD_DISK_START = 2
+_ECD_ENTRIES_THIS_DISK = 3
+_ECD_ENTRIES_TOTAL = 4
+_ECD_SIZE = 5
+_ECD_OFFSET = 6
+_ECD_COMMENT_SIZE = 7
+# These last two indices are not part of the structure as defined in the
+# spec, but they are used internally by this module as a convenience
+_ECD_COMMENT = 8
+_ECD_LOCATION = 9
+
+# The "central directory" structure, magic number, size, and indices
+# of entries in the structure (section V.F in the format document)
+structCentralDir = "<4s4B4HL2L5H2L"
+stringCentralDir = b"PK\001\002"
+sizeCentralDir = struct.calcsize(structCentralDir)
+
+# indexes of entries in the central directory structure
+_CD_SIGNATURE = 0
+_CD_CREATE_VERSION = 1
+_CD_CREATE_SYSTEM = 2
+_CD_EXTRACT_VERSION = 3
+_CD_EXTRACT_SYSTEM = 4
+_CD_FLAG_BITS = 5
+_CD_COMPRESS_TYPE = 6
+_CD_TIME = 7
+_CD_DATE = 8
+_CD_CRC = 9
+_CD_COMPRESSED_SIZE = 10
+_CD_UNCOMPRESSED_SIZE = 11
+_CD_FILENAME_LENGTH = 12
+_CD_EXTRA_FIELD_LENGTH = 13
+_CD_COMMENT_LENGTH = 14
+_CD_DISK_NUMBER_START = 15
+_CD_INTERNAL_FILE_ATTRIBUTES = 16
+_CD_EXTERNAL_FILE_ATTRIBUTES = 17
+_CD_LOCAL_HEADER_OFFSET = 18
+
+# The "local file header" structure, magic number, size, and indices
+# (section V.A in the format document)
+structFileHeader = "<4s2B4HL2L2H"
+stringFileHeader = b"PK\003\004"
+sizeFileHeader = struct.calcsize(structFileHeader)
+
+_FH_SIGNATURE = 0
+_FH_EXTRACT_VERSION = 1
+_FH_EXTRACT_SYSTEM = 2
+_FH_GENERAL_PURPOSE_FLAG_BITS = 3
+_FH_COMPRESSION_METHOD = 4
+_FH_LAST_MOD_TIME = 5
+_FH_LAST_MOD_DATE = 6
+_FH_CRC = 7
+_FH_COMPRESSED_SIZE = 8
+_FH_UNCOMPRESSED_SIZE = 9
+_FH_FILENAME_LENGTH = 10
+_FH_EXTRA_FIELD_LENGTH = 11
+
+# The "Zip64 end of central directory locator" structure, magic number, and size
+structEndArchive64Locator = "<4sLQL"
+stringEndArchive64Locator = b"PK\x06\x07"
+sizeEndCentDir64Locator = struct.calcsize(structEndArchive64Locator)
+
+# The "Zip64 end of central directory" record, magic number, size, and indices
+# (section V.G in the format document)
+structEndArchive64 = "<4sQ2H2L4Q"
+stringEndArchive64 = b"PK\x06\x06"
+sizeEndCentDir64 = struct.calcsize(structEndArchive64)
+
+_CD64_SIGNATURE = 0
+_CD64_DIRECTORY_RECSIZE = 1
+_CD64_CREATE_VERSION = 2
+_CD64_EXTRACT_VERSION = 3
+_CD64_DISK_NUMBER = 4
+_CD64_DISK_NUMBER_START = 5
+_CD64_NUMBER_ENTRIES_THIS_DISK = 6
+_CD64_NUMBER_ENTRIES_TOTAL = 7
+_CD64_DIRECTORY_SIZE = 8
+_CD64_OFFSET_START_CENTDIR = 9
+
+def _check_zipfile(fp):
+    try:
+        if _EndRecData(fp):
+            return True         # file has correct magic number
+    except IOError:
+        pass
+    return False
+
+def is_zipfile(filename):
+    """Quickly see if a file is a ZIP file by checking the magic number.
+
+    The filename argument may be a file or file-like object too.
+    """
+    result = False
+    try:
+        if hasattr(filename, "read"):
+            result = _check_zipfile(fp=filename)
+        else:
+            with open(filename, "rb") as fp:
+                result = _check_zipfile(fp)
+    except IOError:
+        pass
+    return result
+
+def _EndRecData64(fpin, offset, endrec):
+    """
+    Read the ZIP64 end-of-archive records and use that to update endrec
+    """
+    try:
+        fpin.seek(offset - sizeEndCentDir64Locator, 2)
+    except IOError:
+        # If the seek fails, the file is not large enough to contain a ZIP64
+        # end-of-archive record, so just return the end record we were given.
+        return endrec
+
+    data = fpin.read(sizeEndCentDir64Locator)
+    sig, diskno, reloff, disks = struct.unpack(structEndArchive64Locator, data)
+    if sig != stringEndArchive64Locator:
+        return endrec
+
+    if diskno != 0 or disks != 1:
+        raise BadZipfile("zipfiles that span multiple disks are not supported")
+
+    # Assume no 'zip64 extensible data'
+    fpin.seek(offset - sizeEndCentDir64Locator - sizeEndCentDir64, 2)
+    data = fpin.read(sizeEndCentDir64)
+    sig, sz, create_version, read_version, disk_num, disk_dir, \
+            dircount, dircount2, dirsize, diroffset = \
+            struct.unpack(structEndArchive64, data)
+    if sig != stringEndArchive64:
+        return endrec
+
+    # Update the original endrec using data from the ZIP64 record
+    endrec[_ECD_SIGNATURE] = sig
+    endrec[_ECD_DISK_NUMBER] = disk_num
+    endrec[_ECD_DISK_START] = disk_dir
+    endrec[_ECD_ENTRIES_THIS_DISK] = dircount
+    endrec[_ECD_ENTRIES_TOTAL] = dircount2
+    endrec[_ECD_SIZE] = dirsize
+    endrec[_ECD_OFFSET] = diroffset
+    return endrec
+
+
+def _EndRecData(fpin):
+    """Return data from the "End of Central Directory" record, or None.
+
+    The data is a list of the nine items in the ZIP "End of central dir"
+    record followed by a tenth item, the file seek offset of this record."""
+
+    # Determine file size
+    fpin.seek(0, 2)
+    filesize = fpin.tell()
+
+    # Check to see if this is ZIP file with no archive comment (the
+    # "end of central directory" structure should be the last item in the
+    # file if this is the case).
+    try:
+        fpin.seek(-sizeEndCentDir, 2)
+    except IOError:
+        return None
+    data = fpin.read()
+    if data[0:4] == stringEndArchive and data[-2:] == b"\000\000":
+        # the signature is correct and there's no comment, unpack structure
+        endrec = struct.unpack(structEndArchive, data)
+        endrec=list(endrec)
+
+        # Append a blank comment and record start offset
+        endrec.append(b"")
+        endrec.append(filesize - sizeEndCentDir)
+
+        # Try to read the "Zip64 end of central directory" structure
+        return _EndRecData64(fpin, -sizeEndCentDir, endrec)
+
+    # Either this is not a ZIP file, or it is a ZIP file with an archive
+    # comment.  Search the end of the file for the "end of central directory"
+    # record signature. The comment is the last item in the ZIP file and may be
+    # up to 64K long.  It is assumed that the "end of central directory" magic
+    # number does not appear in the comment.
+    maxCommentStart = max(filesize - (1 << 16) - sizeEndCentDir, 0)
+    fpin.seek(maxCommentStart, 0)
+    data = fpin.read()
+    start = data.rfind(stringEndArchive)
+    if start >= 0:
+        # found the magic number; attempt to unpack and interpret
+        recData = data[start:start+sizeEndCentDir]
+        endrec = list(struct.unpack(structEndArchive, recData))
+        comment = data[start+sizeEndCentDir:]
+        # check that comment length is correct
+        if endrec[_ECD_COMMENT_SIZE] == len(comment):
+            # Append the archive comment and start offset
+            endrec.append(comment)
+            endrec.append(maxCommentStart + start)
+
+            # Try to read the "Zip64 end of central directory" structure
+            return _EndRecData64(fpin, maxCommentStart + start - filesize,
+                                 endrec)
+
+    # Unable to find a valid end of central directory structure
+    return
+
+
+class ZipInfo (object):
+    """Class with attributes describing each file in the ZIP archive."""
+
+    __slots__ = (
+            'orig_filename',
+            'filename',
+            'date_time',
+            'compress_type',
+            'comment',
+            'extra',
+            'create_system',
+            'create_version',
+            'extract_version',
+            'reserved',
+            'flag_bits',
+            'volume',
+            'internal_attr',
+            'external_attr',
+            'header_offset',
+            'CRC',
+            'compress_size',
+            'file_size',
+            '_raw_time',
+        )
+
+    def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)):
+        self.orig_filename = filename   # Original file name in archive
+
+        # Terminate the file name at the first null byte.  Null bytes in file
+        # names are used as tricks by viruses in archives.
+        null_byte = filename.find(chr(0))
+        if null_byte >= 0:
+            filename = filename[0:null_byte]
+        # This is used to ensure paths in generated ZIP files always use
+        # forward slashes as the directory separator, as required by the
+        # ZIP format specification.
+        if os.sep != "/" and os.sep in filename:
+            filename = filename.replace(os.sep, "/")
+
+        self.filename = filename        # Normalized file name
+        self.date_time = date_time      # year, month, day, hour, min, sec
+        # Standard values:
+        self.compress_type = ZIP_STORED # Type of compression for the file
+        self.comment = b""              # Comment for each file
+        self.extra = b""                # ZIP extra data
+        if sys.platform == 'win32':
+            self.create_system = 0          # System which created ZIP archive
+        else:
+            # Assume everything else is unix-y
+            self.create_system = 3          # System which created ZIP archive
+        self.create_version = 20        # Version which created ZIP archive
+        self.extract_version = 20       # Version needed to extract archive
+        self.reserved = 0               # Must be zero
+        self.flag_bits = 0              # ZIP flag bits
+        self.volume = 0                 # Volume number of file header
+        self.internal_attr = 0          # Internal attributes
+        self.external_attr = 0          # External file attributes
+        # Other attributes are set by class ZipFile:
+        # header_offset         Byte offset to the file header
+        # CRC                   CRC-32 of the uncompressed file
+        # compress_size         Size of the compressed file
+        # file_size             Size of the uncompressed file
+
+    def FileHeader(self):
+        """Return the per-file header as a string."""
+        dt = self.date_time
+        dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
+        dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
+        if self.flag_bits & 0x08:
+            # Set these to zero because we write them after the file data
+            CRC = compress_size = file_size = 0
+        else:
+            CRC = self.CRC
+            compress_size = self.compress_size
+            file_size = self.file_size
+
+        extra = self.extra
+
+        if file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT:
+            # File is larger than what fits into a 4 byte integer,
+            # fall back to the ZIP64 extension
+            fmt = '<HHQQ'
+            extra = extra + struct.pack(fmt,
+                    1, struct.calcsize(fmt)-4, file_size, compress_size)
+            file_size = 0xffffffff
+            compress_size = 0xffffffff
+            self.extract_version = max(45, self.extract_version)
+            self.create_version = max(45, self.extract_version)
+
+        filename, flag_bits = self._encodeFilenameFlags()
+        header = struct.pack(structFileHeader, stringFileHeader,
+                 self.extract_version, self.reserved, flag_bits,
+                 self.compress_type, dostime, dosdate, CRC,
+                 compress_size, file_size,
+                 len(filename), len(extra))
+        return header + filename + extra
+
+    def _encodeFilenameFlags(self):
+        try:
+            return self.filename.encode('ascii'), self.flag_bits
+        except UnicodeEncodeError:
+            return self.filename.encode('utf-8'), self.flag_bits | 0x800
+
+    def _decodeExtra(self):
+        # Try to decode the extra field.
+        extra = self.extra
+        unpack = struct.unpack
+        while extra:
+            tp, ln = unpack('<HH', extra[:4])
+            if tp == 1:
+                if ln >= 24:
+                    counts = unpack('<QQQ', extra[4:28])
+                elif ln == 16:
+                    counts = unpack('<QQ', extra[4:20])
+                elif ln == 8:
+                    counts = unpack('<Q', extra[4:12])
+                elif ln == 0:
+                    counts = ()
+                else:
+                    raise RuntimeError("Corrupt extra field %s"%(ln,))
+
+                idx = 0
+
+                # ZIP64 extension (large files and/or large archives)
+                if self.file_size in (0xffffffffffffffff, 0xffffffff):
+                    self.file_size = counts[idx]
+                    idx += 1
+
+                if self.compress_size == 0xFFFFFFFF:
+                    self.compress_size = counts[idx]
+                    idx += 1
+
+                if self.header_offset == 0xffffffff:
+                    old = self.header_offset
+                    self.header_offset = counts[idx]
+                    idx+=1
+
+            extra = extra[ln+4:]
+
+
+class _ZipDecrypter:
+    """Class to handle decryption of files stored within a ZIP archive.
+
+    ZIP supports a password-based form of encryption. Even though known
+    plaintext attacks have been found against it, it is still useful
+    to be able to get data out of such a file.
+
+    Usage:
+        zd = _ZipDecrypter(mypwd)
+        plain_char = zd(cypher_char)
+        plain_text = map(zd, cypher_text)
+    """
+
+    def _GenerateCRCTable():
+        """Generate a CRC-32 table.
+
+        ZIP encryption uses the CRC32 one-byte primitive for scrambling some
+        internal keys. We noticed that a direct implementation is faster than
+        relying on binascii.crc32().
+        """
+        poly = 0xedb88320
+        table = [0] * 256
+        for i in range(256):
+            crc = i
+            for j in range(8):
+                if crc & 1:
+                    crc = ((crc >> 1) & 0x7FFFFFFF) ^ poly
+                else:
+                    crc = ((crc >> 1) & 0x7FFFFFFF)
+            table[i] = crc
+        return table
+    crctable = _GenerateCRCTable()
+
+    def _crc32(self, ch, crc):
+        """Compute the CRC32 primitive on one byte."""
+        return ((crc >> 8) & 0xffffff) ^ self.crctable[(crc ^ ch) & 0xff]
+
+    def __init__(self, pwd):
+        self.key0 = 305419896
+        self.key1 = 591751049
+        self.key2 = 878082192
+        for p in pwd:
+            self._UpdateKeys(p)
+
+    def _UpdateKeys(self, c):
+        self.key0 = self._crc32(c, self.key0)
+        self.key1 = (self.key1 + (self.key0 & 255)) & 4294967295
+        self.key1 = (self.key1 * 134775813 + 1) & 4294967295
+        self.key2 = self._crc32((self.key1 >> 24) & 255, self.key2)
+
+    def __call__(self, c):
+        """Decrypt a single character."""
+        assert isinstance(c, int)
+        k = self.key2 | 2
+        c = c ^ (((k * (k^1)) >> 8) & 255)
+        self._UpdateKeys(c)
+        return c
+
+class ZipExtFile:
+    """File-like object for reading an archive member.
+       Is returned by ZipFile.open().
+    """
+
+    def __init__(self, fileobj, zipinfo, decrypt=None):
+        self.fileobj = fileobj
+        self.decrypter = decrypt
+        self.bytes_read = 0
+        self.rawbuffer = b''
+        self.readbuffer = b''
+        self.linebuffer = b''
+        self.eof = False
+        self.univ_newlines = False
+        self.nlSeps = (b"\n", )
+        self.lastdiscard = b''
+
+        self.compress_type = zipinfo.compress_type
+        self.compress_size = zipinfo.compress_size
+
+        self.closed  = False
+        self.mode    = "r"
+        self.name = zipinfo.filename
+
+        # read from compressed files in 64k blocks
+        self.compreadsize = 64*1024
+        if self.compress_type == ZIP_DEFLATED:
+            self.dc = zlib.decompressobj(-15)
+        elif self.compress_type == ZIP_BZIP2:
+            self.dc = bz2.BZ2Decompressor()
+            self.compreadsize = 900000
+
+        if hasattr(zipinfo, 'CRC'):
+            self._expected_crc = zipinfo.CRC
+            self._running_crc = crc32(b'') & 0xffffffff
+        else:
+            self._expected_crc = None
+
+    def set_univ_newlines(self, univ_newlines):
+        self.univ_newlines = univ_newlines
+
+        # pick line separator char(s) based on universal newlines flag
+        self.nlSeps = (b"\n", )
+        if self.univ_newlines:
+            self.nlSeps = (b"\r\n", b"\r", b"\n")
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        nextline = self.readline()
+        if not nextline:
+            raise StopIteration()
+
+        return nextline
+
+    def close(self):
+        self.closed = True
+
+    def _checkfornewline(self):
+        nl, nllen = -1, -1
+        if self.linebuffer:
+            # ugly check for cases where half of an \r\n pair was
+            # read on the last pass, and the \r was discarded.  In this
+            # case we just throw away the \n at the start of the buffer.
+            if (self.lastdiscard, self.linebuffer[:1]) == (b'\r', b'\n'):
+                self.linebuffer = self.linebuffer[1:]
+
+            for sep in self.nlSeps:
+                nl = self.linebuffer.find(sep)
+                if nl >= 0:
+                    nllen = len(sep)
+                    return nl, nllen
+
+        return nl, nllen
+
+    def readline(self, size = -1):
+        """Read a line with approx. size. If size is negative,
+           read a whole line.
+        """
+        if size < 0:
+            size = sys.maxsize
+        elif size == 0:
+            return b''
+
+        # check for a newline already in buffer
+        nl, nllen = self._checkfornewline()
+
+        if nl >= 0:
+            # the next line was already in the buffer
+            nl = min(nl, size)
+        else:
+            # no line break in buffer - try to read more
+            size -= len(self.linebuffer)
+            while nl < 0 and size > 0:
+                buf = self.read(min(size, 100))
+                if not buf:
+                    break
+                self.linebuffer += buf
+                size -= len(buf)
+
+                # check for a newline in buffer
+                nl, nllen = self._checkfornewline()
+
+            # we either ran out of bytes in the file, or
+            # met the specified size limit without finding a newline,
+            # so return current buffer
+            if nl < 0:
+                s = self.linebuffer
+                self.linebuffer = b''
+                return s
+
+        buf = self.linebuffer[:nl]
+        self.lastdiscard = self.linebuffer[nl:nl + nllen]
+        self.linebuffer = self.linebuffer[nl + nllen:]
+
+        # line is always returned with \n as newline char (except possibly
+        # for a final incomplete line in the file, which is handled above).
+        return buf + b"\n"
+
+    def readlines(self, sizehint = -1):
+        """Return a list with all (following) lines. The sizehint parameter
+        is ignored in this implementation.
+        """
+        result = []
+        while True:
+            line = self.readline()
+            if not line: break
+            result.append(line)
+        return result
+
+    def _update_crc(self, newdata, eof):
+        # Update the CRC using the given data.
+        if self._expected_crc is None:
+            # No need to compute the CRC if we don't have a reference value
+            return
+        self._running_crc = crc32(newdata, self._running_crc) & 0xffffffff
+        # Check the CRC if we're at the end of the file
+        if eof and self._running_crc != self._expected_crc:
+            raise BadZipfile("Bad CRC-32 for file %r" % self.name)
+
+    def read(self, size = None):
+        # act like file obj and return empty string if size is 0
+        if size == 0:
+            return b''
+
+        # determine read size
+        bytesToRead = self.compress_size - self.bytes_read
+
+        # adjust read size for encrypted files since the first 12 bytes
+        # are for the encryption/password information
+        if self.decrypter is not None:
+            bytesToRead -= 12
+
+        if size is not None and size >= 0:
+            if self.compress_type == ZIP_STORED:
+                lr = len(self.readbuffer)
+                bytesToRead = min(bytesToRead, size - lr)
+            else:
+                if len(self.readbuffer) > size:
+                    # the user has requested fewer bytes than we've already
+                    # pulled through the decompressor; don't read any more
+                    bytesToRead = 0
+                else:
+                    # user will use up the buffer, so read some more
+                    lr = len(self.rawbuffer)
+                    bytesToRead = min(bytesToRead, self.compreadsize - lr)
+
+        # avoid reading past end of file contents
+        if bytesToRead + self.bytes_read > self.compress_size:
+            bytesToRead = self.compress_size - self.bytes_read
+
+        # try to read from file (if necessary)
+        if bytesToRead > 0:
+            data = self.fileobj.read(bytesToRead)
+            self.bytes_read += len(data)
+            try:
+                self.rawbuffer += data
+            except:
+                print(repr(self.fileobj), repr(self.rawbuffer),
+                      repr(data))
+                raise
+
+            # handle contents of raw buffer
+            if self.rawbuffer:
+                newdata = self.rawbuffer
+                self.rawbuffer = b''
+
+                # decrypt new data if we were given an object to handle that
+                if newdata and self.decrypter is not None:
+                    newdata = bytes(map(self.decrypter, newdata))
+
+                # decompress newly read data if necessary
+                if newdata and self.compress_type != ZIP_STORED:
+                    newdata = self.dc.decompress(newdata)
+                    self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
+                    if self.eof and len(self.rawbuffer) == 0:
+                        # we're out of raw bytes (both from the file and
+                        # the local buffer); flush just to make sure the
+                        # decompressor is done
+                        try:
+                            newdata += self.dc.flush()
+                        except AttributeError:
+                            pass
+                        # prevent decompressor from being used again
+                        self.dc = None
+
+                self._update_crc(newdata, eof=(
+                    self.compress_size == self.bytes_read and
+                    len(self.rawbuffer) == 0))
+                self.readbuffer += newdata
+
+        # return what the user asked for
+        if size is None or len(self.readbuffer) <= size:
+            data = self.readbuffer
+            self.readbuffer = b''
+        else:
+            data = self.readbuffer[:size]
+            self.readbuffer = self.readbuffer[size:]
+
+        return data
+
+
+class ZipFile:
+    """ Class with methods to open, read, write, close, list zip files.
+
+    z = ZipFile(file, mode="r", compression=ZIP_STORED, allowZip64=False)
+
+    file: Either the path to the file, or a file-like object.
+          If it is a path, the file will be opened and closed by ZipFile.
+    mode: The mode can be either read "r", write "w" or append "a".
+    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
+                 or ZIP_BZIP2 (requires bz2).
+    allowZip64: if True ZipFile will create files with ZIP64 extensions when
+                needed, otherwise it will raise an exception when this would
+                be necessary.
+
+    """
+
+    fp = None                   # Set here since __del__ checks it
+
+    def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=False):
+        """Open the ZIP file with mode read "r", write "w" or append "a"."""
+        if mode not in ("r", "w", "a"):
+            raise RuntimeError('ZipFile() requires mode "r", "w", or "a"')
+
+        if compression == ZIP_STORED:
+            pass
+        elif compression == ZIP_DEFLATED:
+            if not zlib:
+                raise RuntimeError(
+                      "Compression requires the (missing) zlib module")
+        elif compression == ZIP_BZIP2:
+            if not bz2:
+                raise RuntimeError(
+                      "Compression requires the (missing) bz2 module")
+        else:
+            raise RuntimeError("That compression method is not supported")
+
+        self._allowZip64 = allowZip64
+        self._didModify = False
+        self.debug = 0  # Level of printing: 0 through 3
+        self.NameToInfo = {}    # Find file info given name
+        self.filelist = []      # List of ZipInfo instances for archive
+        self.compression = compression  # Method of compression
+        self.mode = key = mode.replace('b', '')[0]
+        self.pwd = None
+        self.comment = b''
+
+        # Check if we were passed a file-like object
+        if isinstance(file, str):
+            # No, it's a filename
+            self._filePassed = 0
+            self.filename = file
+            modeDict = {'r' : 'rb', 'w': 'wb', 'a' : 'r+b'}
+            try:
+                self.fp = io.open(file, modeDict[mode])
+            except IOError:
+                if mode == 'a':
+                    mode = key = 'w'
+                    self.fp = io.open(file, modeDict[mode])
+                else:
+                    raise
+        else:
+            self._filePassed = 1
+            self.fp = file
+            self.filename = getattr(file, 'name', None)
+
+        if key == 'r':
+            self._GetContents()
+        elif key == 'w':
+            # set the modified flag so central directory gets written
+            # even if no files are added to the archive
+            self._didModify = True
+        elif key == 'a':
+            try:
+                # See if file is a zip file
+                self._RealGetContents()
+                # seek to start of directory and overwrite
+                self.fp.seek(self.start_dir, 0)
+            except BadZipfile:
+                # file is not a zip file, just append
+                self.fp.seek(0, 2)
+
+                # set the modified flag so central directory gets written
+                # even if no files are added to the archive
+                self._didModify = True
+        else:
+            if not self._filePassed:
+                self.fp.close()
+                self.fp = None
+            raise RuntimeError('Mode must be "r", "w" or "a"')
+
+    def _GetContents(self):
+        """Read the directory, making sure we close the file if the format
+        is bad."""
+        try:
+            self._RealGetContents()
+        except BadZipfile:
+            if not self._filePassed:
+                self.fp.close()
+                self.fp = None
+            raise
+
+    def _RealGetContents(self):
+        """Read in the table of contents for the ZIP file."""
+        fp = self.fp
+        try:
+            endrec = _EndRecData(fp)
+        except IOError:
+            raise BadZipfile("File is not a zip file")
+        if not endrec:
+            raise BadZipfile("File is not a zip file")
+        if self.debug > 1:
+            print(endrec)
+        size_cd = endrec[_ECD_SIZE]             # bytes in central directory
+        offset_cd = endrec[_ECD_OFFSET]         # offset of central directory
+        self.comment = endrec[_ECD_COMMENT]     # archive comment
+
+        # "concat" is zero, unless zip was concatenated to another file
+        concat = endrec[_ECD_LOCATION] - size_cd - offset_cd
+        if endrec[_ECD_SIGNATURE] == stringEndArchive64:
+            # If Zip64 extension structures are present, account for them
+            concat -= (sizeEndCentDir64 + sizeEndCentDir64Locator)
+
+        if self.debug > 2:
+            inferred = concat + offset_cd
+            print("given, inferred, offset", offset_cd, inferred, concat)
+        # self.start_dir:  Position of start of central directory
+        self.start_dir = offset_cd + concat
+        fp.seek(self.start_dir, 0)
+        data = fp.read(size_cd)
+        fp = io.BytesIO(data)
+        total = 0
+        while total < size_cd:
+            centdir = fp.read(sizeCentralDir)
+            if centdir[0:4] != stringCentralDir:
+                raise BadZipfile("Bad magic number for central directory")
+            centdir = struct.unpack(structCentralDir, centdir)
+            if self.debug > 2:
+                print(centdir)
+            filename = fp.read(centdir[_CD_FILENAME_LENGTH])
+            flags = centdir[5]
+            if flags & 0x800:
+                # UTF-8 file names extension
+                filename = filename.decode('utf-8')
+            else:
+                # Historical ZIP filename encoding
+                filename = filename.decode('cp437')
+            # Create ZipInfo instance to store file information
+            x = ZipInfo(filename)
+            x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
+            x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
+            x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET]
+            (x.create_version, x.create_system, x.extract_version, x.reserved,
+                x.flag_bits, x.compress_type, t, d,
+                x.CRC, x.compress_size, x.file_size) = centdir[1:12]
+            x.volume, x.internal_attr, x.external_attr = centdir[15:18]
+            # Convert date/time code to (year, month, day, hour, min, sec)
+            x._raw_time = t
+            x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
+                                     t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
+
+            x._decodeExtra()
+            x.header_offset = x.header_offset + concat
+            self.filelist.append(x)
+            self.NameToInfo[x.filename] = x
+
+            # update total bytes read from central directory
+            total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH]
+                     + centdir[_CD_EXTRA_FIELD_LENGTH]
+                     + centdir[_CD_COMMENT_LENGTH])
+
+            if self.debug > 2:
+                print("total", total)
+
+
+    def namelist(self):
+        """Return a list of file names in the archive."""
+        l = []
+        for data in self.filelist:
+            l.append(data.filename)
+        return l
+
+    def infolist(self):
+        """Return a list of class ZipInfo instances for files in the
+        archive."""
+        return self.filelist
+
+    def printdir(self, file=None):
+        """Print a table of contents for the zip file."""
+        print("%-46s %19s %12s" % ("File Name", "Modified    ", "Size"),
+              file=file)
+        for zinfo in self.filelist:
+            date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6]
+            print("%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size),
+                  file=file)
+
+    def testzip(self):
+        """Read all the files and check the CRC."""
+        chunk_size = 2 ** 20
+        for zinfo in self.filelist:
+            try:
+                # Read by chunks, to avoid an OverflowError or a
+                # MemoryError with very large embedded files.
+                f = self.open(zinfo.filename, "r")
+                while f.read(chunk_size):     # Check CRC-32
+                    pass
+            except BadZipfile:
+                return zinfo.filename
+
+    def getinfo(self, name):
+        """Return the instance of ZipInfo given 'name'."""
+        info = self.NameToInfo.get(name)
+        if info is None:
+            raise KeyError(
+                'There is no item named %r in the archive' % name)
+
+        return info
+
+    def setpassword(self, pwd):
+        """Set default password for encrypted files."""
+        assert isinstance(pwd, bytes)
+        self.pwd = pwd
+
+    def read(self, name, pwd=None):
+        """Return file bytes (as a string) for name."""
+        return self.open(name, "r", pwd).read()
+
+    def open(self, name, mode="r", pwd=None):
+        """Return file-like object for 'name'."""
+        if mode not in ("r", "U", "rU"):
+            raise RuntimeError('open() requires mode "r", "U", or "rU"')
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to read ZIP archive that was already closed")
+
+        # Only open a new file for instances where we were not
+        # given a file object in the constructor
+        if self._filePassed:
+            zef_file = self.fp
+        else:
+            zef_file = io.open(self.filename, 'rb')
+
+        # Make sure we have an info object
+        if isinstance(name, ZipInfo):
+            # 'name' is already an info object
+            zinfo = name
+        else:
+            # Get info object for name
+            zinfo = self.getinfo(name)
+
+        zef_file.seek(zinfo.header_offset, 0)
+
+        # Skip the file header:
+        fheader = zef_file.read(sizeFileHeader)
+        if fheader[0:4] != stringFileHeader:
+            raise BadZipfile("Bad magic number for file header")
+
+        fheader = struct.unpack(structFileHeader, fheader)
+        fname = zef_file.read(fheader[_FH_FILENAME_LENGTH])
+        if fheader[_FH_EXTRA_FIELD_LENGTH]:
+            zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH])
+
+        if fname != zinfo.orig_filename.encode("utf-8"):
+            raise BadZipfile(
+                  'File name in directory %r and header %r differ.'
+                  % (zinfo.orig_filename, fname))
+
+        # check for encrypted flag & handle password
+        is_encrypted = zinfo.flag_bits & 0x1
+        zd = None
+        if is_encrypted:
+            if not pwd:
+                pwd = self.pwd
+            if not pwd:
+                raise RuntimeError("File %s is encrypted, "
+                                   "password required for extraction" % name)
+
+            zd = _ZipDecrypter(pwd)
+            # The first 12 bytes in the cypher stream is an encryption header
+            #  used to strengthen the algorithm. The first 11 bytes are
+            #  completely random, while the 12th contains the MSB of the CRC,
+            #  or the MSB of the file time depending on the header type
+            #  and is used to check the correctness of the password.
+            bytes = zef_file.read(12)
+            h = list(map(zd, bytes[0:12]))
+            if zinfo.flag_bits & 0x8:
+                # compare against the file type from extended local headers
+                check_byte = (zinfo._raw_time >> 8) & 0xff
+            else:
+                # compare against the CRC otherwise
+                check_byte = (zinfo.CRC >> 24) & 0xff
+            if h[11] != check_byte:
+                raise RuntimeError("Bad password for file", name)
+
+        # build and return a ZipExtFile
+        if zd is None:
+            zef = ZipExtFile(zef_file, zinfo)
+        else:
+            zef = ZipExtFile(zef_file, zinfo, zd)
+
+        # set universal newlines on ZipExtFile if necessary
+        if "U" in mode:
+            zef.set_univ_newlines(True)
+        return zef
+
+    def extract(self, member, path=None, pwd=None):
+        """Extract a member from the archive to the current working directory,
+           using its full name. Its file information is extracted as accurately
+           as possible. `member' may be a filename or a ZipInfo object. You can
+           specify a different directory using `path'.
+        """
+        if not isinstance(member, ZipInfo):
+            member = self.getinfo(member)
+
+        if path is None:
+            path = os.getcwd()
+
+        return self._extract_member(member, path, pwd)
+
+    def extractall(self, path=None, members=None, pwd=None):
+        """Extract all members from the archive to the current working
+           directory. `path' specifies a different directory to extract to.
+           `members' is optional and must be a subset of the list returned
+           by namelist().
+        """
+        if members is None:
+            members = self.namelist()
+
+        for zipinfo in members:
+            self.extract(zipinfo, path, pwd)
+
+    def _extract_member(self, member, targetpath, pwd):
+        """Extract the ZipInfo object 'member' to a physical
+           file on the path targetpath.
+        """
+        # build the destination pathname, replacing
+        # forward slashes to platform specific separators.
+        # Strip trailing path separator, unless it represents the root.
+        if (targetpath[-1:] in (os.path.sep, os.path.altsep)
+            and len(os.path.splitdrive(targetpath)[1]) > 1):
+            targetpath = targetpath[:-1]
+
+        # don't include leading "/" from file name if present
+        if member.filename[0] == '/':
+            targetpath = os.path.join(targetpath, member.filename[1:])
+        else:
+            targetpath = os.path.join(targetpath, member.filename)
+
+        targetpath = os.path.normpath(targetpath)
+
+        # Create all upper directories if necessary.
+        upperdirs = os.path.dirname(targetpath)
+        if upperdirs and not os.path.exists(upperdirs):
+            os.makedirs(upperdirs)
+
+        if member.filename[-1] == '/':
+            if not os.path.isdir(targetpath):
+                os.mkdir(targetpath)
+            return targetpath
+
+        source = self.open(member, pwd=pwd)
+        target = open(targetpath, "wb")
+        shutil.copyfileobj(source, target)
+        source.close()
+        target.close()
+
+        return targetpath
+
+    def _writecheck(self, zinfo):
+        """Check for errors before writing a file to the archive."""
+        if zinfo.filename in self.NameToInfo:
+            if self.debug:      # Warning for duplicate names
+                print("Duplicate name:", zinfo.filename)
+        if self.mode not in ("w", "a"):
+            raise RuntimeError('write() requires mode "w" or "a"')
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to write ZIP archive that was already closed")
+        if zinfo.compress_type == ZIP_DEFLATED and not zlib:
+            raise RuntimeError(
+                  "Compression requires the (missing) zlib module")
+        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
+            raise RuntimeError(
+                  "Compression requires the (missing) bz2 module")
+        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
+            raise RuntimeError("That compression method is not supported")
+        if zinfo.file_size > ZIP64_LIMIT:
+            if not self._allowZip64:
+                raise LargeZipFile("Filesize would require ZIP64 extensions")
+        if zinfo.header_offset > ZIP64_LIMIT:
+            if not self._allowZip64:
+                raise LargeZipFile(
+                      "Zipfile size would require ZIP64 extensions")
+
+    def write(self, filename, arcname=None, compress_type=None):
+        """Put the bytes from filename into the archive under the name
+        arcname."""
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to write to ZIP archive that was already closed")
+
+        st = os.stat(filename)
+        isdir = stat.S_ISDIR(st.st_mode)
+        mtime = time.localtime(st.st_mtime)
+        date_time = mtime[0:6]
+        # Create ZipInfo instance to store file information
+        if arcname is None:
+            arcname = filename
+        arcname = os.path.normpath(os.path.splitdrive(arcname)[1])
+        while arcname[0] in (os.sep, os.altsep):
+            arcname = arcname[1:]
+        if isdir:
+            arcname += '/'
+        zinfo = ZipInfo(arcname, date_time)
+        zinfo.external_attr = (st[0] & 0xFFFF) << 16      # Unix attributes
+        if compress_type is None:
+            zinfo.compress_type = self.compression
+        else:
+            zinfo.compress_type = compress_type
+
+        zinfo.file_size = st.st_size
+        zinfo.flag_bits = 0x00
+        zinfo.header_offset = self.fp.tell()    # Start of header bytes
+
+        self._writecheck(zinfo)
+        self._didModify = True
+
+        if isdir:
+            zinfo.file_size = 0
+            zinfo.compress_size = 0
+            zinfo.CRC = 0
+            self.filelist.append(zinfo)
+            self.NameToInfo[zinfo.filename] = zinfo
+            self.fp.write(zinfo.FileHeader())
+            return
+
+        with open(filename, "rb") as fp:
+            # Must overwrite CRC and sizes with correct data later
+            zinfo.CRC = CRC = 0
+            zinfo.compress_size = compress_size = 0
+            zinfo.file_size = file_size = 0
+            self.fp.write(zinfo.FileHeader())
+            if zinfo.compress_type == ZIP_DEFLATED:
+                cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                     zlib.DEFLATED, -15)
+            elif zinfo.compress_type == ZIP_BZIP2:
+                cmpr = bz2.BZ2Compressor()
+            else:
+                cmpr = None
+            while 1:
+                buf = fp.read(1024 * 8)
+                if not buf:
+                    break
+                file_size = file_size + len(buf)
+                CRC = crc32(buf, CRC) & 0xffffffff
+                if cmpr:
+                    buf = cmpr.compress(buf)
+                    compress_size = compress_size + len(buf)
+                self.fp.write(buf)
+        if cmpr:
+            buf = cmpr.flush()
+            compress_size = compress_size + len(buf)
+            self.fp.write(buf)
+            zinfo.compress_size = compress_size
+        else:
+            zinfo.compress_size = file_size
+        zinfo.CRC = CRC
+        zinfo.file_size = file_size
+        # Seek backwards and write CRC and file sizes
+        position = self.fp.tell()       # Preserve current position in file
+        self.fp.seek(zinfo.header_offset + 14, 0)
+        self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
+              zinfo.file_size))
+        self.fp.seek(position, 0)
+        self.filelist.append(zinfo)
+        self.NameToInfo[zinfo.filename] = zinfo
+
+    def writestr(self, zinfo_or_arcname, data):
+        """Write a file into the archive.  The contents is 'data', which
+        may be either a 'str' or a 'bytes' instance; if it is a 'str',
+        it is encoded as UTF-8 first.
+        'zinfo_or_arcname' is either a ZipInfo instance or
+        the name of the file in the archive."""
+        if isinstance(data, str):
+            data = data.encode("utf-8")
+        if not isinstance(zinfo_or_arcname, ZipInfo):
+            zinfo = ZipInfo(filename=zinfo_or_arcname,
+                            date_time=time.localtime(time.time())[:6])
+            zinfo.compress_type = self.compression
+            zinfo.external_attr = 0o600 << 16
+        else:
+            zinfo = zinfo_or_arcname
+
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to write to ZIP archive that was already closed")
+
+        zinfo.file_size = len(data)            # Uncompressed size
+        zinfo.header_offset = self.fp.tell()    # Start of header data
+        self._writecheck(zinfo)
+        self._didModify = True
+        zinfo.CRC = crc32(data) & 0xffffffff       # CRC-32 checksum
+        if zinfo.compress_type == ZIP_DEFLATED:
+            co = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                 zlib.DEFLATED, -15)
+            data = co.compress(data) + co.flush()
+            zinfo.compress_size = len(data)    # Compressed size
+        elif zinfo.compress_type == ZIP_BZIP2:
+            co = bz2.BZ2Compressor()
+            data = co.compress(data) + co.flush()
+            zinfo.compress_size = len(data)    # Compressed size
+        else:
+            zinfo.compress_size = zinfo.file_size
+        zinfo.header_offset = self.fp.tell()    # Start of header data
+        self.fp.write(zinfo.FileHeader())
+        self.fp.write(data)
+        self.fp.flush()
+        if zinfo.flag_bits & 0x08:
+            # Write CRC and file sizes after the file data
+            self.fp.write(struct.pack("<LLL", zinfo.CRC, zinfo.compress_size,
+                  zinfo.file_size))
+        self.filelist.append(zinfo)
+        self.NameToInfo[zinfo.filename] = zinfo
+
+    def __del__(self):
+        """Call the "close()" method in case the user forgot."""
+        self.close()
+
+    def close(self):
+        """Close the file, and for mode "w" and "a" write the ending
+        records."""
+        if self.fp is None:
+            return
+
+        if self.mode in ("w", "a") and self._didModify: # write ending records
+            count = 0
+            pos1 = self.fp.tell()
+            for zinfo in self.filelist:         # write central directory
+                count = count + 1
+                dt = zinfo.date_time
+                dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
+                dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
+                extra = []
+                if zinfo.file_size > ZIP64_LIMIT \
+                        or zinfo.compress_size > ZIP64_LIMIT:
+                    extra.append(zinfo.file_size)
+                    extra.append(zinfo.compress_size)
+                    file_size = 0xffffffff
+                    compress_size = 0xffffffff
+                else:
+                    file_size = zinfo.file_size
+                    compress_size = zinfo.compress_size
+
+                if zinfo.header_offset > ZIP64_LIMIT:
+                    extra.append(zinfo.header_offset)
+                    header_offset = 0xffffffff
+                else:
+                    header_offset = zinfo.header_offset
+
+                extra_data = zinfo.extra
+                if extra:
+                    # Append a ZIP64 field to the extra's
+                    extra_data = struct.pack(
+                            '<HH' + 'Q'*len(extra),
+                            1, 8*len(extra), *extra) + extra_data
+
+                    extract_version = max(45, zinfo.extract_version)
+                    create_version = max(45, zinfo.create_version)
+                else:
+                    extract_version = zinfo.extract_version
+                    create_version = zinfo.create_version
+
+                try:
+                    filename, flag_bits = zinfo._encodeFilenameFlags()
+                    centdir = struct.pack(structCentralDir,
+                        stringCentralDir, create_version,
+                        zinfo.create_system, extract_version, zinfo.reserved,
+                        flag_bits, zinfo.compress_type, dostime, dosdate,
+                        zinfo.CRC, compress_size, file_size,
+                        len(filename), len(extra_data), len(zinfo.comment),
+                        0, zinfo.internal_attr, zinfo.external_attr,
+                        header_offset)
+                except DeprecationWarning:
+                    print((structCentralDir, stringCentralDir, create_version,
+                        zinfo.create_system, extract_version, zinfo.reserved,
+                        zinfo.flag_bits, zinfo.compress_type, dostime, dosdate,
+                        zinfo.CRC, compress_size, file_size,
+                        len(zinfo.filename), len(extra_data), len(zinfo.comment),
+                        0, zinfo.internal_attr, zinfo.external_attr,
+                        header_offset), file=sys.stderr)
+                    raise
+                self.fp.write(centdir)
+                self.fp.write(filename)
+                self.fp.write(extra_data)
+                self.fp.write(zinfo.comment)
+
+            pos2 = self.fp.tell()
+            # Write end-of-zip-archive record
+            centDirCount = count
+            centDirSize = pos2 - pos1
+            centDirOffset = pos1
+            if (centDirCount >= ZIP_FILECOUNT_LIMIT or
+                centDirOffset > ZIP64_LIMIT or
+                centDirSize > ZIP64_LIMIT):
+                # Need to write the ZIP64 end-of-archive records
+                zip64endrec = struct.pack(
+                        structEndArchive64, stringEndArchive64,
+                        44, 45, 45, 0, 0, centDirCount, centDirCount,
+                        centDirSize, centDirOffset)
+                self.fp.write(zip64endrec)
+
+                zip64locrec = struct.pack(
+                        structEndArchive64Locator,
+                        stringEndArchive64Locator, 0, pos2, 1)
+                self.fp.write(zip64locrec)
+                centDirCount = min(centDirCount, 0xFFFF)
+                centDirSize = min(centDirSize, 0xFFFFFFFF)
+                centDirOffset = min(centDirOffset, 0xFFFFFFFF)
+
+            # check for valid comment length
+            if len(self.comment) >= ZIP_MAX_COMMENT:
+                if self.debug > 0:
+                    msg = 'Archive comment is too long; truncating to %d bytes' \
+                          % ZIP_MAX_COMMENT
+                self.comment = self.comment[:ZIP_MAX_COMMENT]
+
+            endrec = struct.pack(structEndArchive, stringEndArchive,
+                                 0, 0, centDirCount, centDirCount,
+                                 centDirSize, centDirOffset, len(self.comment))
+            self.fp.write(endrec)
+            self.fp.write(self.comment)
+            self.fp.flush()
+
+        if not self._filePassed:
+            self.fp.close()
+        self.fp = None
+
+
+class PyZipFile(ZipFile):
+    """Class to create ZIP archives with Python library files and packages."""
+
+    def writepy(self, pathname, basename=""):
+        """Add all files from "pathname" to the ZIP archive.
+
+        If pathname is a package directory, search the directory and
+        all package subdirectories recursively for all *.py and enter
+        the modules into the archive.  If pathname is a plain
+        directory, listdir *.py and enter all modules.  Else, pathname
+        must be a Python *.py file and the module will be put into the
+        archive.  Added modules are always module.pyo or module.pyc.
+        This method will compile the module.py into module.pyc if
+        necessary.
+        """
+        dir, name = os.path.split(pathname)
+        if os.path.isdir(pathname):
+            initname = os.path.join(pathname, "__init__.py")
+            if os.path.isfile(initname):
+                # This is a package directory, add it
+                if basename:
+                    basename = "%s/%s" % (basename, name)
+                else:
+                    basename = name
+                if self.debug:
+                    print("Adding package in", pathname, "as", basename)
+                fname, arcname = self._get_codename(initname[0:-3], basename)
+                if self.debug:
+                    print("Adding", arcname)
+                self.write(fname, arcname)
+                dirlist = os.listdir(pathname)
+                dirlist.remove("__init__.py")
+                # Add all *.py files and package subdirectories
+                for filename in dirlist:
+                    path = os.path.join(pathname, filename)
+                    root, ext = os.path.splitext(filename)
+                    if os.path.isdir(path):
+                        if os.path.isfile(os.path.join(path, "__init__.py")):
+                            # This is a package directory, add it
+                            self.writepy(path, basename)  # Recursive call
+                    elif ext == ".py":
+                        fname, arcname = self._get_codename(path[0:-3],
+                                         basename)
+                        if self.debug:
+                            print("Adding", arcname)
+                        self.write(fname, arcname)
+            else:
+                # This is NOT a package directory, add its files at top level
+                if self.debug:
+                    print("Adding files from directory", pathname)
+                for filename in os.listdir(pathname):
+                    path = os.path.join(pathname, filename)
+                    root, ext = os.path.splitext(filename)
+                    if ext == ".py":
+                        fname, arcname = self._get_codename(path[0:-3],
+                                         basename)
+                        if self.debug:
+                            print("Adding", arcname)
+                        self.write(fname, arcname)
+        else:
+            if pathname[-3:] != ".py":
+                raise RuntimeError(
+                      'Files added with writepy() must end with ".py"')
+            fname, arcname = self._get_codename(pathname[0:-3], basename)
+            if self.debug:
+                print("Adding file", arcname)
+            self.write(fname, arcname)
+
+    def _get_codename(self, pathname, basename):
+        """Return (filename, archivename) for the path.
+
+        Given a module name path, return the correct file path and
+        archive name, compiling if necessary.  For example, given
+        /python/lib/string, return (/python/lib/string.pyc, string).
+        """
+        file_py  = pathname + ".py"
+        file_pyc = pathname + ".pyc"
+        file_pyo = pathname + ".pyo"
+        if os.path.isfile(file_pyo) and \
+                            os.stat(file_pyo).st_mtime >= os.stat(file_py).st_mtime:
+            fname = file_pyo    # Use .pyo file
+        elif not os.path.isfile(file_pyc) or \
+             os.stat(file_pyc).st_mtime < os.stat(file_py).st_mtime:
+            import py_compile
+            if self.debug:
+                print("Compiling", file_py)
+            try:
+                py_compile.compile(file_py, file_pyc, None, True)
+            except py_compile.PyCompileError as err:
+                print(err.msg)
+            fname = file_pyc
+        else:
+            fname = file_pyc
+        archivename = os.path.split(fname)[1]
+        if basename:
+            archivename = "%s/%s" % (basename, archivename)
+        return (fname, archivename)
+
+
+def main(args = None):
+    import textwrap
+    USAGE=textwrap.dedent("""\
+        Usage:
+            zipfile.py -l zipfile.zip        # Show listing of a zipfile
+            zipfile.py -t zipfile.zip        # Test if a zipfile is valid
+            zipfile.py -e zipfile.zip target # Extract zipfile into target dir
+            zipfile.py -c zipfile.zip src ... # Create zipfile from sources
+        """)
+    if args is None:
+        args = sys.argv[1:]
+
+    if not args or args[0] not in ('-l', '-c', '-e', '-t'):
+        print(USAGE)
+        sys.exit(1)
+
+    if args[0] == '-l':
+        if len(args) != 2:
+            print(USAGE)
+            sys.exit(1)
+        zf = ZipFile(args[1], 'r')
+        zf.printdir()
+        zf.close()
+
+    elif args[0] == '-t':
+        if len(args) != 2:
+            print(USAGE)
+            sys.exit(1)
+        zf = ZipFile(args[1], 'r')
+        badfile = zf.testzip()
+        if badfile:
+            print("The following enclosed file is corrupted: {!r}".format(badfile))
+        print("Done testing")
+
+    elif args[0] == '-e':
+        if len(args) != 3:
+            print(USAGE)
+            sys.exit(1)
+
+        zf = ZipFile(args[1], 'r')
+        out = args[2]
+        for path in zf.namelist():
+            if path.startswith('./'):
+                tgt = os.path.join(out, path[2:])
+            else:
+                tgt = os.path.join(out, path)
+
+            tgtdir = os.path.dirname(tgt)
+            if not os.path.exists(tgtdir):
+                os.makedirs(tgtdir)
+            with open(tgt, 'wb') as fp:
+                fp.write(zf.read(path))
+        zf.close()
+
+    elif args[0] == '-c':
+        if len(args) < 3:
+            print(USAGE)
+            sys.exit(1)
+
+        def addToZip(zf, path, zippath):
+            if os.path.isfile(path):
+                zf.write(path, zippath, ZIP_DEFLATED)
+            elif os.path.isdir(path):
+                for nm in os.listdir(path):
+                    addToZip(zf,
+                            os.path.join(path, nm), os.path.join(zippath, nm))
+            # else: ignore
+
+        zf = ZipFile(args[1], 'w', allowZip64=True)
+        for src in args[2:]:
+            addToZip(zf, src, os.path.basename(src))
+
+        zf.close()
+
+if __name__ == "__main__":
+    main()
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zipfile313.diff	Sun Dec 19 23:23:24 2010 +0200
@@ -0,0 +1,126 @@
+--- /usr/local/lib/python3.1/zipfile.py	2010-11-29 00:59:28.000000000 +0000
++++ zipfile313.py	2010-11-29 01:22:19.000000000 +0000
+@@ -3,6 +3,7 @@
+ 
+ XXX references to utf-8 need further investigation.
+ """
++# Improved by Chortos-2 in 2010 (added bzip2 support)
+ import struct, os, time, sys, shutil
+ import binascii, io, stat
+ 
+@@ -13,8 +14,13 @@
+     zlib = None
+     crc32 = binascii.crc32
+ 
++try:
++    import bz2 # We may need its compression method
++except ImportError:
++    bz2 = None
++
+ __all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
+-           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile" ]
++           "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
+ 
+ class BadZipfile(Exception):
+     pass
+@@ -35,6 +41,7 @@
+ # constants for Zip file compression methods
+ ZIP_STORED = 0
+ ZIP_DEFLATED = 8
++ZIP_BZIP2 = 12
+ # Other ZIP compression methods not supported
+ 
+ # Below are some formats and associated data for reading/writing headers using
+@@ -477,6 +484,9 @@
+         self.compreadsize = 64*1024
+         if self.compress_type == ZIP_DEFLATED:
+             self.dc = zlib.decompressobj(-15)
++        elif self.compress_type == ZIP_BZIP2:
++            self.dc = bz2.BZ2Decompressor()
++            self.compreadsize = 900000
+ 
+         if hasattr(zipinfo, 'CRC'):
+             self._expected_crc = zipinfo.CRC
+@@ -604,7 +614,7 @@
+             if self.compress_type == ZIP_STORED:
+                 lr = len(self.readbuffer)
+                 bytesToRead = min(bytesToRead, size - lr)
+-            elif self.compress_type == ZIP_DEFLATED:
++            else:
+                 if len(self.readbuffer) > size:
+                     # the user has requested fewer bytes than we've already
+                     # pulled through the decompressor; don't read any more
+@@ -639,14 +649,17 @@
+                     newdata = bytes(map(self.decrypter, newdata))
+ 
+                 # decompress newly read data if necessary
+-                if newdata and self.compress_type == ZIP_DEFLATED:
++                if newdata and self.compress_type != ZIP_STORED:
+                     newdata = self.dc.decompress(newdata)
+-                    self.rawbuffer = self.dc.unconsumed_tail
++                    self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
+                     if self.eof and len(self.rawbuffer) == 0:
+                         # we're out of raw bytes (both from the file and
+                         # the local buffer); flush just to make sure the
+                         # decompressor is done
+-                        newdata += self.dc.flush()
++                        try:
++                            newdata += self.dc.flush()
++                        except AttributeError:
++                            pass
+                         # prevent decompressor from being used again
+                         self.dc = None
+ 
+@@ -674,7 +687,8 @@
+     file: Either the path to the file, or a file-like object.
+           If it is a path, the file will be opened and closed by ZipFile.
+     mode: The mode can be either read "r", write "w" or append "a".
+-    compression: ZIP_STORED (no compression) or ZIP_DEFLATED (requires zlib).
++    compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
++                 or ZIP_BZIP2 (requires bz2).
+     allowZip64: if True ZipFile will create files with ZIP64 extensions when
+                 needed, otherwise it will raise an exception when this would
+                 be necessary.
+@@ -694,6 +708,10 @@
+             if not zlib:
+                 raise RuntimeError(
+                       "Compression requires the (missing) zlib module")
++        elif compression == ZIP_BZIP2:
++            if not bz2:
++                raise RuntimeError(
++                      "Compression requires the (missing) bz2 module")
+         else:
+             raise RuntimeError("That compression method is not supported")
+ 
+@@ -1041,7 +1059,10 @@
+         if zinfo.compress_type == ZIP_DEFLATED and not zlib:
+             raise RuntimeError(
+                   "Compression requires the (missing) zlib module")
+-        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED):
++        if zinfo.compress_type == ZIP_BZIP2 and not bz2:
++            raise RuntimeError(
++                  "Compression requires the (missing) bz2 module")
++        if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
+             raise RuntimeError("That compression method is not supported")
+         if zinfo.file_size > ZIP64_LIMIT:
+             if not self._allowZip64:
+@@ -1102,6 +1123,8 @@
+             if zinfo.compress_type == ZIP_DEFLATED:
+                 cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
+                      zlib.DEFLATED, -15)
++            elif zinfo.compress_type == ZIP_BZIP2:
++                cmpr = bz2.BZ2Compressor()
+             else:
+                 cmpr = None
+             while 1:
+@@ -1162,6 +1185,10 @@
+                  zlib.DEFLATED, -15)
+             data = co.compress(data) + co.flush()
+             zinfo.compress_size = len(data)    # Compressed size
++        elif zinfo.compress_type == ZIP_BZIP2:
++            co = bz2.BZ2Compressor()
++            data = co.compress(data) + co.flush()
++            zinfo.compress_size = len(data)    # Compressed size
+         else:
+             zinfo.compress_size = zinfo.file_size
+         zinfo.header_offset = self.fp.tell()    # Start of header data