[Patches] [ python-Patches-1446489 ] zipfile: support for ZIP64
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Tue May 16 09:55:25 CEST 2006
Patches item #1446489, was opened at 2006-03-09 15:58
Message generated for change (Comment added) made by ronaldoussoren
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Category: Library (Lib)
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Ronald Oussoren (ronaldoussoren)
Assigned to: Ronald Oussoren (ronaldoussoren)
Summary: zipfile: support for ZIP64
Initial Comment:
The attached patch implements support for ZIP64, that is zipfiles
containing very large (>4GByte) files and zipfiles that are larger than
4GByte themselves.
The output of this patch can be read by pkzip (see below for the actual
version I used for testing).
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>Comment By: Ronald Oussoren (ronaldoussoren)
Date: 2006-05-16 09:55
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I haven't had time to work on this, all time I had to work on python related stuff
has been eaten by finishing PyObjC's port to intel macs and universal binary
patches.
The former is now done, the latter almost so I'll have some time to work on this
again especially because I'm using this patch at work and might be able to claim
some time to work on this during work-hours.
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Comment By: Georg Brandl (gbrandl)
Date: 2006-05-16 09:41
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Since 2.5 beta is coming close, have you made progress on
the tests/docs?
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Comment By: Ronald Oussoren (ronaldoussoren)
Date: 2006-04-02 21:13
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The "don't use the ZIP64 extension" flag is a good idea, zipfiles that use this
extension aren't readable by the infozip tools (zip and unzip on most unix
systems).
I'll add tests and documentation in the near future.
The version of zipfile that I'm currently using also contains a patch for
speeding up the opening of zipfiles, for the type of files I'm dealing with
(about 11GByte large with tens of thousands of files) the speedup is very
significant. I suppose it's better to file that as a separate patch after this has
been approved.
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Comment By: Anthony Baxter (anthonybaxter)
Date: 2006-04-02 07:02
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I'd like to see a testcase and possibly a note for the
documentation about the new semantics. Also, should it be
possible to say "don't use the ZIP64 extension, instead
raise an Error" for people who don't want to generate these?
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Comment By: Ronald Oussoren (ronaldoussoren)
Date: 2006-03-09 16:28
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Oops, I've uploaded the wrong file. zipfile-zip64.patch is the correct one.
I've tested the correctness of created archives using this version of pkzip:
pkzipc -version
PKZIP(R) Server Version 8 ZIP Compression Utility for Linux X86
Copyright (C) 1989-2005 PKWARE, Inc. All Rights Reserved. Evaluation
Version
PKZIP Reg. U.S. Pat. and Tm. Off. Patent No. 5,051,745
Patent Pending
Version 8.40.66
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