Bugs item #1636950, was opened at 2007-01-16 10:56 Message generated for change (Comment added) made by amonthei You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1636950&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. 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 ---------------------------------------------------------------------- >Comment By: Andy Monthei (amonthei) Date: 2007-01-17 15:58 Message: Logged In: YES user_id=1693612 Originator: YES I can not upload the files that trigger this because of the data that is in them but I am working on getting around that. In my data line 617391 in a fixed block file of 6990 bytes wide gets read in with the next line after it. The line break is 0d0a (same as the others) where the bug happens so I am wondering if it is a buffer issue where the linebreak falls at the edge, however no other characters are ever missed. The total file is 888420 lines and this happens in four spots. I will hopefully have a file to send soon. ---------------------------------------------------------------------- Comment By: Brett Cannon (bcannon) Date: 2007-01-16 16:33 Message: Logged In: YES user_id=357491 Originator: NO Do you happen to have a sample you could upload that triggers the bug? ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1636950&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
