[ python-Bugs-1672853 ] Error reading files larger than 4GB

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Bugs item #1672853, was opened at 2007-03-03 03:01
Message generated for change (Comment added) made by joearmbruster
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Category: Windows
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Case Van Horsen (casevh)
Assigned to: Nobody/Anonymous (nobody)
Summary: Error reading files larger than 4GB

Initial Comment:
When reading test files larger than 4GB, sometimes two lines are merged into a single line. The problem is reproducible on Windows 2K SP4 with both Python 2.4 and 2.5. It does not appear to occur on Linux.

I have attached a test case that creates the problem.



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Comment By: Joseph Armbruster (joearmbruster)
Date: 2007-04-25 21:40

Message:
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URL:  http://svn.python.org/projects/python/trunk
Revision: 54922

Note:  Reproduced Error using test application on the following system

OS Name:    Microsoft Windows XP Professional
OS Version: 5.1.2600 Service Pack 2 Build 2600

Try modifying line 13:

fh = open(fname, 'r')
to:
fh = open(fname, 'rb')

and notice the behavior.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1672853&group_id=5470