[ python-Bugs-1636950 ] Newline skipped in "for line in file"

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Bugs item #1636950, was opened at 2007-01-16 10:56
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Category: Python Library
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Andy Monthei (amonthei)
Assigned to: Nobody/Anonymous (nobody)
Summary: Newline skipped in "for line in file"

Initial Comment:
When processing huge fixed block files of about 7000 bytes wide and several hundred thousand lines long some pairs of lines get read as one long line with no line break when using "for line in file:".  The problem is even worse when using the fileinput module and reading in five or six huge files consisting of 4.8 million records causes several hundred pairs of lines to be read as single lines. When a newline is skipped it is usually followed by several more in the next few hundred lines. I have not noticed any other characters being skipped, only the line break.

O.S. Windows (5, 1, 2600, 2, 'Service Pack 2')
Python 2.5

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1636950&group_id=5470