Bugs item #1569057, was opened at 2006-10-01 23:49 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1569057&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 Submitted By: andrei kulakov (rainy) Assigned to: Nobody/Anonymous (nobody) Summary: Using .next() on file open in write mode writes junk to file Initial Comment: When you open a file in write mode and use .next(), it prints an error and writes many lines of junk to file. I tested on windows and python 2.5: >>> f = open('test', 'w') >>> f.fileno() 4 >>> f.write('1\n') >>> f.write('2\n3\n4\n') >>> f.next() Traceback (most recent call last): File "<pyshell#8>", line 1, in <module> f.next() IOError: [Errno 9] Bad file descriptor >>> f.close() >>> f = open('test') >>> f.next() '1\n' >>> f.next() '2\n' >>> f.next() '3\n' >>> f.next() '4\n' >>> f.next() '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x 00\x00\x00\x00\x00\x 00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00\x00\x00\ x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00 ...many more lines of junk...' ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1569057&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com