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annotate 2.00/zipfile313.diff @ 40:af9c45708987

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Cemented a decision previously being unsure about The mere presense of the tasknames configuration variable now always makes problem names to be printed. This is not new, but the old behaviour (only printing names if we test more than one problem), previously commented out, has now been removed altogether.
author Oleg Oshmyan <chortos@inbox.lv>
date Sun, 05 Dec 2010 14:34:24 +0100
parents 3000bb94addb
children
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32
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1 --- /usr/local/lib/python3.1/zipfile.py 2010-11-29 00:59:28.000000000 +0000
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2 +++ zipfile313.py 2010-11-29 01:22:19.000000000 +0000
29
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3 @@ -3,6 +3,7 @@
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4
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5 XXX references to utf-8 need further investigation.
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6 """
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7 +# Improved by Chortos-2 in 2010 (added bzip2 support)
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8 import struct, os, time, sys, shutil
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9 import binascii, io, stat
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10
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11 @@ -13,8 +14,13 @@
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12 zlib = None
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13 crc32 = binascii.crc32
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14
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15 +try:
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16 + import bz2 # We may need its compression method
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17 +except ImportError:
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18 + bz2 = None
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19 +
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20 __all__ = ["BadZipfile", "error", "ZIP_STORED", "ZIP_DEFLATED", "is_zipfile",
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21 - "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile" ]
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22 + "ZipInfo", "ZipFile", "PyZipFile", "LargeZipFile", "ZIP_BZIP2" ]
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23
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24 class BadZipfile(Exception):
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25 pass
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26 @@ -35,6 +41,7 @@
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27 # constants for Zip file compression methods
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28 ZIP_STORED = 0
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29 ZIP_DEFLATED = 8
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30 +ZIP_BZIP2 = 12
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31 # Other ZIP compression methods not supported
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32
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33 # Below are some formats and associated data for reading/writing headers using
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34 @@ -477,6 +484,9 @@
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35 self.compreadsize = 64*1024
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36 if self.compress_type == ZIP_DEFLATED:
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37 self.dc = zlib.decompressobj(-15)
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38 + elif self.compress_type == ZIP_BZIP2:
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39 + self.dc = bz2.BZ2Decompressor()
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40 + self.compreadsize = 900000
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41
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42 if hasattr(zipinfo, 'CRC'):
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43 self._expected_crc = zipinfo.CRC
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44 @@ -604,7 +614,7 @@
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45 if self.compress_type == ZIP_STORED:
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46 lr = len(self.readbuffer)
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47 bytesToRead = min(bytesToRead, size - lr)
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48 - elif self.compress_type == ZIP_DEFLATED:
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49 + else:
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50 if len(self.readbuffer) > size:
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51 # the user has requested fewer bytes than we've already
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52 # pulled through the decompressor; don't read any more
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53 @@ -639,14 +649,17 @@
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54 newdata = bytes(map(self.decrypter, newdata))
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55
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56 # decompress newly read data if necessary
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57 - if newdata and self.compress_type == ZIP_DEFLATED:
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58 + if newdata and self.compress_type != ZIP_STORED:
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59 newdata = self.dc.decompress(newdata)
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60 - self.rawbuffer = self.dc.unconsumed_tail
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61 + self.rawbuffer = self.dc.unconsumed_tail if self.compress_type == ZIP_DEFLATED else ''
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62 if self.eof and len(self.rawbuffer) == 0:
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63 # we're out of raw bytes (both from the file and
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64 # the local buffer); flush just to make sure the
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65 # decompressor is done
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66 - newdata += self.dc.flush()
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67 + try:
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68 + newdata += self.dc.flush()
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69 + except AttributeError:
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70 + pass
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71 # prevent decompressor from being used again
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72 self.dc = None
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73
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74 @@ -674,7 +687,8 @@
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75 file: Either the path to the file, or a file-like object.
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76 If it is a path, the file will be opened and closed by ZipFile.
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77 mode: The mode can be either read "r", write "w" or append "a".
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78 - compression: ZIP_STORED (no compression) or ZIP_DEFLATED (requires zlib).
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79 + compression: ZIP_STORED (no compression), ZIP_DEFLATED (requires zlib),
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80 + or ZIP_BZIP2 (requires bz2).
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81 allowZip64: if True ZipFile will create files with ZIP64 extensions when
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82 needed, otherwise it will raise an exception when this would
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83 be necessary.
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84 @@ -694,6 +708,10 @@
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85 if not zlib:
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86 raise RuntimeError(
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87 "Compression requires the (missing) zlib module")
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88 + elif compression == ZIP_BZIP2:
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89 + if not bz2:
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90 + raise RuntimeError(
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91 + "Compression requires the (missing) bz2 module")
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92 else:
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93 raise RuntimeError("That compression method is not supported")
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94
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95 @@ -1041,7 +1059,10 @@
29
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96 if zinfo.compress_type == ZIP_DEFLATED and not zlib:
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97 raise RuntimeError(
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98 "Compression requires the (missing) zlib module")
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99 - if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED):
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100 + if zinfo.compress_type == ZIP_BZIP2 and not bz2:
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101 + raise RuntimeError(
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102 + "Compression requires the (missing) bz2 module")
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103 + if zinfo.compress_type not in (ZIP_STORED, ZIP_DEFLATED, ZIP_BZIP2):
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104 raise RuntimeError("That compression method is not supported")
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105 if zinfo.file_size > ZIP64_LIMIT:
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106 if not self._allowZip64:
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107 @@ -1102,6 +1123,8 @@
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108 if zinfo.compress_type == ZIP_DEFLATED:
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109 cmpr = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION,
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110 zlib.DEFLATED, -15)
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111 + elif zinfo.compress_type == ZIP_BZIP2:
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112 + cmpr = bz2.BZ2Compressor()
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113 else:
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114 cmpr = None
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115 while 1:
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116 @@ -1162,6 +1185,10 @@
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117 zlib.DEFLATED, -15)
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118 data = co.compress(data) + co.flush()
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119 zinfo.compress_size = len(data) # Compressed size
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120 + elif zinfo.compress_type == ZIP_BZIP2:
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121 + co = bz2.BZ2Compressor()
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122 + data = co.compress(data) + co.flush()
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123 + zinfo.compress_size = len(data) # Compressed size
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124 else:
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125 zinfo.compress_size = zinfo.file_size
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126 zinfo.header_offset = self.fp.tell() # Start of header data