Upreckon: compat.py annotate

annotate compat.py @ 75:007f7eb6fb2b

The test context stack is now a deque. Deques have a faster pop() than lists do.

author	Oleg Oshmyan <chortos@inbox.lv>
date	Thu, 06 Jan 2011 23:53:31 +0200
parents	b9d5857f7b9a
children	d46bd7ee3e69

rev	line source
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	1 #! /usr/bin/env python
16 f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	2 # Copyright (c) 2010 Chortos-2 <chortos@inbox.lv>
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	3
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	4 # A compatibility layer for Python 2.5+. This is what lets test.py
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	5 # run on all versions of Python starting with 2.5, including Python 3.
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	6
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	7 # A few notes regarding some compatibility-driven peculiarities
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	8 # in the use of the language that can be seen in all modules:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	9 #
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	10 # * Except statements never specify target; instead, when needed,
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	11 # the exception is taken from sys.exc_info(). Blame the incompatible
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	12 # syntaxes of the except clause in Python 2.5 and Python 3 and the lack
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	13 # of preprocessor macros in Python of any version ;P.
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	14 #
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	15 # * Keyword-only parameters are never used, even for parameters
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	16 # that should never be given in as arguments. The reason is
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	17 # the laziness of some Python developers who have failed to finish
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	18 # implementing them in Python 2 even though they had several years
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	19 # of time and multiple version releases to sneak them in.
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	20 #
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	21 # * Abstract classes are only implemented for Python 2.6 and 2.7.
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	22 # ABC's require the abc module and the specification of metaclasses,
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	23 # but in Python 2.5, the abc module does not exist, while in Python 3,
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	24 # metaclasses are specified using a syntax totally incompatible
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	25 # with Python 2 and not usable conditionally via exec() and such
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	26 # because it is a detail of the syntax of the class statement itself.
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	27
67 e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	28 # Some code was adapted from Python 2.7.1 and its documentation.
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	29 # This code is clearly marked as such in preceding comments and is
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	30 # covered by copyright as follows:
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	31 #
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	32 # Copyright (c) 2001-2010 Python Software Foundation; all rights reserved.
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	33 #
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	34 # The code is used according to the PSF License Agreement
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	35 # for Python 2.7.1, whose full text is available from your local
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	36 # installation of Python (enter 'license()' in the interactive
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	37 # interpreter) or from the Web at the following URL:
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	38 #
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	39 # http://docs.python.org/2.7.1/license.html#terms-and-conditions-for-accessing-or-otherwise-using-python
e0f8b28e15b5 Added a copyright & licensing notice about code borrowed from Python itself Oleg Oshmyan <chortos@inbox.lv> parents: 50 diff changeset	40
27 dc4be35d17e0 Bug fixes Oleg Oshmyan <chortos@inbox.lv> parents: 25 diff changeset	41 try:
dc4be35d17e0 Bug fixes Oleg Oshmyan <chortos@inbox.lv> parents: 25 diff changeset	42 import builtins
dc4be35d17e0 Bug fixes Oleg Oshmyan <chortos@inbox.lv> parents: 25 diff changeset	43 except ImportError:
dc4be35d17e0 Bug fixes Oleg Oshmyan <chortos@inbox.lv> parents: 25 diff changeset	44 import __builtin__ as builtins
25 b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	45
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	46 pseudobuiltins = ('say', 'basestring', 'range', 'map', 'zip', 'filter', 'next',
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	47 'items', 'keys', 'values', 'zip_longest', 'callable')
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	48 __all__ = pseudobuiltins + ('ABCMeta', 'abstractmethod', 'CompatBuiltins')
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	49
16 f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	50 try:
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	51 # Python 3
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	52 exec('say = print')
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	53 except SyntaxError:
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	54 try:
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	55 # Python 2.6/2.7
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	56 # An alternative is exec('from __future__ import print_function; say = print');
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	57 # if problems arise with the current line, one should try replacing it
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	58 # with this one with the future import before abandoning the idea altogether
27 dc4be35d17e0 Bug fixes Oleg Oshmyan <chortos@inbox.lv> parents: 25 diff changeset	59 say = getattr(builtins, 'print')
16 f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	60 except Exception:
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	61 # Python 2.5
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	62 import sys
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	63 # This should fully emulate the print function of Python 2.6 in Python 2.3+
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	64 # The error messages are taken from Python 2.6
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	65 # The name bindings at the bottom of this file are in effect
16 f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	66 def saytypeerror(value, name):
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	67 return TypeError(' '.join((name, 'must be None, str or unicode, not', type(value).__name__)))
16 f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	68 def say(values, *kwargs):
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	69 sep = kwargs.pop('sep' , None)
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	70 end = kwargs.pop('end' , None)
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	71 file = kwargs.pop('file', None)
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	72 if kwargs: raise TypeError("'%s' is an invalid keyword argument for this function" % kwargs.popitem()[0])
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	73 if sep is None: sep = ' '
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	74 if end is None: end = '\n'
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	75 if file is None: file = sys.stdout
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	76 if not isinstance(sep, basestring): raise saytypeerror(sep, 'sep')
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	77 if not isinstance(end, basestring): raise saytypeerror(end, 'end')
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	78 file.write(sep.join(map(str, values)) + end)
16 f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	79
34 8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	80 try:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	81 from os.path import relpath
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	82 except ImportError:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	83 # Python 2.5
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	84 import os.path as _path
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	85
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	86 # Adapted from Python 2.7.1
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	87
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	88 if hasattr(_path, 'splitunc'):
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	89 def _abspath_split(path):
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	90 abs = _path.abspath(_path.normpath(path))
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	91 prefix, rest = _path.splitunc(abs)
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	92 is_unc = bool(prefix)
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	93 if not is_unc:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	94 prefix, rest = _path.splitdrive(abs)
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	95 return is_unc, prefix, [x for x in rest.split(_path.sep) if x]
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	96 else:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	97 def _abspath_split(path):
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	98 prefix, rest = _path.splitdrive(_path.abspath(_path.normpath(path)))
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	99 return False, prefix, [x for x in rest.split(_path.sep) if x]
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	100
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	101 def relpath(path, start=_path.curdir):
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	102 """Return a relative version of a path"""
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	103
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	104 if not path:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	105 raise ValueError("no path specified")
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	106
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	107 start_is_unc, start_prefix, start_list = _abspath_split(start)
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	108 path_is_unc, path_prefix, path_list = _abspath_split(path)
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	109
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	110 if path_is_unc ^ start_is_unc:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	111 raise ValueError("Cannot mix UNC and non-UNC paths (%s and %s)"
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	112 % (path, start))
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	113 if path_prefix.lower() != start_prefix.lower():
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	114 if path_is_unc:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	115 raise ValueError("path is on UNC root %s, start on UNC root %s"
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	116 % (path_prefix, start_prefix))
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	117 else:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	118 raise ValueError("path is on drive %s, start on drive %s"
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	119 % (path_prefix, start_prefix))
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	120 # Work out how much of the filepath is shared by start and path.
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	121 i = 0
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	122 for e1, e2 in zip(start_list, path_list):
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	123 if e1.lower() != e2.lower():
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	124 break
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	125 i += 1
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	126
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	127 rel_list = [_path.pardir] * (len(start_list)-i) + path_list[i:]
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	128 if not rel_list:
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	129 return _path.curdir
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	130 return _path.join(*rel_list)
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	131
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	132 _path.relpath = relpath
8fec38b0dd6e A os.path.relpath implementation for Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 31 diff changeset	133
16 f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	134 def import_urllib():
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	135 try:
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	136 # Python 3
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	137 import urllib.request
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	138 return urllib.request, lambda url: urllib.request.urlopen(url).read().decode('ascii')
16 f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	139 except ImportError:
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	140 # Python 2
f2279b7602d3 Initial 2.00 commit Oleg Oshmyan <chortos@inbox.lv> parents: diff changeset	141 import urllib
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	142 return urllib, lambda url: urllib.urlopen(url).read()
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	143
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	144 try:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	145 from abc import ABCMeta, abstractmethod
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	146 except ImportError:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	147 ABCMeta, abstractmethod = None, lambda x: x
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	148
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	149 try:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	150 basestring = basestring
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	151 except NameError:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	152 basestring = str
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	153
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	154 # xrange is set to support simple testconf.py's written for test.py 1.x
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	155 try:
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	156 xrange = range = xrange
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	157 except NameError:
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	158 xrange = range = range
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	159
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	160 try:
25 b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	161 callable = callable
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	162 except NameError:
68 e00ab6d1f0ba Corrected the implementation of callable() for Python 3.0 and 3.1 Oleg Oshmyan <chortos@inbox.lv> parents: 67 diff changeset	163 from collections import Callable
e00ab6d1f0ba Corrected the implementation of callable() for Python 3.0 and 3.1 Oleg Oshmyan <chortos@inbox.lv> parents: 67 diff changeset	164 callable = lambda obj: isinstance(obj, Callable)
25 b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	165
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	166 try:
35 23aa8da5be5f compat.py now emulates the next() built-in in Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 34 diff changeset	167 next = next
23aa8da5be5f compat.py now emulates the next() built-in in Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 34 diff changeset	168 except NameError:
23aa8da5be5f compat.py now emulates the next() built-in in Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 34 diff changeset	169 next = lambda obj: obj.next()
23aa8da5be5f compat.py now emulates the next() built-in in Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 34 diff changeset	170
23aa8da5be5f compat.py now emulates the next() built-in in Python 2.5 Oleg Oshmyan <chortos@inbox.lv> parents: 34 diff changeset	171 try:
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	172 from itertools import imap as map
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	173 except ImportError:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	174 map = map
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	175
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	176 try:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	177 from itertools import izip as zip
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	178 except ImportError:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	179 zip = zip
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	180
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	181 try:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	182 from itertools import ifilter as filter
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	183 except ImportError:
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	184 filter = filter
ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	185
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	186 try:
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	187 items = dict.iteritems
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	188 except AttributeError:
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	189 items = dict.items
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	190
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	191 try:
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	192 keys = dict.iterkeys
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	193 except AttributeError:
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	194 keys = dict.keys
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	195
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	196 try:
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	197 values = dict.itervalues
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	198 except AttributeError:
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	199 values = dict.values
21 ec6f1a132109 A pretty usable version Oleg Oshmyan <chortos@inbox.lv> parents: 16 diff changeset	200
25 b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	201 try:
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	202 # Python 3
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	203 from itertools import zip_longest
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	204 except ImportError:
31 fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	205 try:
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	206 # Python 2.6/2.7
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	207 from itertools import izip_longest as zip_longest
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	208 except ImportError:
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	209 # Python 2.5
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	210 from itertools import chain, repeat
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	211 # Adapted from the documentation of itertools.izip_longest
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	212 def zip_longest(args, *kwargs):
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	213 fillvalue = kwargs.get('fillvalue')
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	214 def sentinel(counter=([fillvalue]*(len(args)-1)).pop):
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	215 yield counter()
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	216 fillers = repeat(fillvalue)
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	217 iters = [chain(it, sentinel(), fillers) for it in args]
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	218 try:
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	219 for tup in zip(*iters):
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	220 yield tup
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	221 except IndexError:
fe1463e7e24d Clean up try-except clauses Oleg Oshmyan <chortos@inbox.lv> parents: 27 diff changeset	222 pass
25 b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	223
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	224 # Automatically import * from this module into testconf.py's
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	225 class CompatBuiltins(object):
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	226 __slots__ = 'originals'
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	227 globals = globals()
25 b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	228 def __enter__(self):
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	229 self.originals = {}
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	230 for name in pseudobuiltins:
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	231 try:
27 dc4be35d17e0 Bug fixes Oleg Oshmyan <chortos@inbox.lv> parents: 25 diff changeset	232 self.originals[name] = getattr(builtins, name)
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	233 except AttributeError:
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	234 pass
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	235 setattr(builtins, name, self.globals[name])
b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	236 return self
25 b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	237 def __exit__(self, exc_type, exc_val, exc_tb):
b500e117080e Bug fixes and overhead reduction Oleg Oshmyan <chortos@inbox.lv> parents: 22 diff changeset	238 for name in self.originals:
70 b9d5857f7b9a Better emulation of built-ins for testconf Oleg Oshmyan <chortos@inbox.lv> parents: 68 diff changeset	239 setattr(builtins, name, self.originals[name])

Mercurial > ~astiob > upreckon > hgweb

annotate compat.py @ 75:007f7eb6fb2b