[issue10903] ZipExtFile:_update_crc fails for CRC >= 0x80000000

2011-01-17 Thread arindam
arindam added the comment: Legacy code in my module was setting zipfile.structCentralDir to "<4s4B4H3l5H2L" (was added to fix some issues with older version of python) was the root cause of this issue. Sorry, should have checked before filing. Thanks for your time. Sorry once again.

[issue10903] ZipExtFile:_update_crc fails for CRC >= 0x80000000

2011-01-17 Thread Antoine Pitrou
Antoine Pitrou added the comment: > Able to get the issue with > Python 2.7.1 (r271:86832, Nov 27 2010, 18:30:46) [MSC v.1500 32 bit (Intel)] > on win32 Ok, I tried with this exact version and I still can't reproduce. Can you explain which steps exactly are necessary to exhibit this issue? --

[issue10903] ZipExtFile:_update_crc fails for CRC >= 0x80000000

2011-01-17 Thread arindam
arindam added the comment: Able to get the issue with Python 2.7.1 (r271:86832, Nov 27 2010, 18:30:46) [MSC v.1500 32 bit (Intel)] on win32 This is the latest version for 2.7.x Please try with the uploaded a.zip -- ___ Python tracker

[issue10903] ZipExtFile:_update_crc fails for CRC >= 0x80000000

2011-01-17 Thread Antoine Pitrou
Antoine Pitrou added the comment: > Attached test file a.zip. Happening with 2.7.1.3. The changes came > with /python/branches/release27-maint/Lib/zipfile.py revision 83961 I tested with 2.7.x and 3.2 (both from latest SVN) and couldn't reproduce (I used testzip() and extractall()), both in

[issue10903] ZipExtFile:_update_crc fails for CRC >= 0x80000000

2011-01-17 Thread arindam
arindam added the comment: Attached test file a.zip. Happening with 2.7.1.3. The changes came with /python/branches/release27-maint/Lib/zipfile.py revision 83961 -- Added file: http://bugs.python.org/file20425/a.zip ___ Python tracker

[issue10903] ZipExtFile:_update_crc fails for CRC >= 0x80000000

2011-01-15 Thread Nadeem Vawda
Nadeem Vawda added the comment: I have been unable to reproduce this on either 3.2rc1 or 2.6. I used a Zip archive containing a single file with the data b"a\n" (CRC 0xDDEAA107). -- nosy: +nvawda ___ Python tracker

[issue10903] ZipExtFile:_update_crc fails for CRC >= 0x80000000

2011-01-14 Thread Antoine Pitrou
Antoine Pitrou added the comment: Can you provide such a file? What system are you testing on? -- nosy: +pitrou ___ Python tracker ___ __

[issue10903] ZipExtFile:_update_crc fails for CRC >= 0x80000000

2011-01-14 Thread arindam
New submission from arindam : File: zipfile.py Function: _update_crc statement: if eof and self._running_crc != self._expected_crc: Due to comparison of long with int, "if eof and self._running_crc != self._expected_crc:" fails when _expected_crc is negative (0x8000 or more). Type of _runn