Bugs item #1742205, was opened at 2007-06-23 16:07 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1742205&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: alexis (asak) Assigned to: Nobody/Anonymous (nobody) Summary: ZipFile.writestr writes incorrect extended local headers Initial Comment: According to http://www.onicos.com/staff/iz/formats/zip.html the format of an optional extended local header is: Extended local header: Offset Length Contents 0 4 bytes Extended Local file header signature (0x08074b50) 4 4 bytes CRC-32 8 4 bytes Compressed size 12 4 bytes Uncompressed size If you call ZipFile.writestr passing a ZipInfo where flag_bits & 0x08 is true, it will try to write an extended local header, but it won't write the header signature. Even though (on Linux) unzip doesn't complain about it, a zip -T file.zip tells me: $ zip -T file.zip zip warning: extended local header not found for filename zip error: Zip file structure invalid (file.zip) Tested on a debian unstable system, with Python 2.3.5, 2.4.4 and 2.5.1. I'm attaching a simple test case. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1742205&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
