[ python-Bugs-1189216 ] zipfile module and 2G boundary

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Bugs item #1189216, was opened at 2005-04-24 21:08
Message generated for change (Comment added) made by mdcowles
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Category: Python Library
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Bob Ippolito (etrepum)
Assigned to: Nobody/Anonymous (nobody)
Summary: zipfile module and 2G boundary

Initial Comment:
The zipfile module currently can not handle archives that have file 
headers that begin past the 2**31 byte boundary.  This is really bug 
#679953 all over again -- that fix didn't solve all of the problem.

Patch to CVS HEAD attached, backport candidate to 2.4.2 and 
2.3.6.

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Comment By: Matthew Cowles (mdcowles)
Date: 2005-10-16 14:18

Message:
Logged In: YES 
user_id=198518

[From a post to python-help]

Related to this is that zipfile raises an exception on creating a file 
that's too big. It seems that the limitation should be documented or 
removed.

This is from the message to python-help:

python version 4.2.  the class zipfile in the module zipfile is unable 
to .close() a file bigger than
2^32-1 (or whatever) bytes.

Traceback (most recent call last):
  File "bk.py", line 12, in ?
    zf.close()
  File "C:\Python24\lib\zipfile.py", line 503, in close
    zinfo.header_offset)
OverflowError: long int too large to convert to int


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