[ python-Bugs-1215928 ] Large tarfiles cause overflow

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Bugs item #1215928, was opened at 2005-06-06 21:19
Message generated for change (Comment added) made by gustaebel
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Category: Python Library
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Tom Emerson (tree)
Assigned to: Nobody/Anonymous (nobody)
Summary: Large tarfiles cause overflow

Initial Comment:
I have a 4 gigabyte bz2 compressed tarfile containing some 3.3 
million documents. I have a script which opens this file with "r:bz2" 
and is simply iterating over the contents using next(). With 2.4.1 I 
still get an Overflow error (originally tried with 2.3.5 as packaged in 
Mac OS 10.4.1):

Traceback (most recent call last):
  File "extract_part.py", line 47, in ?
    main(sys.argv)
  File "extract_part.py", line 39, in main
    pathnames = find_valid_paths(argv[1], 1024, count)
  File "extract_part.py", line 13, in find_valid_paths
    f = tf.next()
  File "/usr/local/lib/python2.4/tarfile.py", line 1584, in next
    self.fileobj.seek(self.offset)
OverflowError: long int too large to convert to int


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Comment By: Lars Gustäbel (gustaebel)
Date: 2005-06-07 15:23

Message:
Logged In: YES 
user_id=642936

A quick look at the problem reveals that this is a bug in
bz2.BZ2File. The seek() method does not allow position
values >= 2GiB.

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