Bugs item #1575169, was opened at 2006-10-11 05:35 Message generated for change (Comment added) made by rhettinger You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1575169&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 Interpreter Core Group: Python 2.4 Status: Open Resolution: None Priority: 5 Private: No Submitted By: Martin Gfeller (gfe) Assigned to: Raymond Hettinger (rhettinger) Summary: isSequenceType returns True for dict subclasses (<> 2.3) Initial Comment: The following behavior is correct according to the documentation. However, it seems weird to me, and broke my code when going from 2.3 to 2.4: Python 2.4.2: >>> import operator >>> class deriveddict(dict): pass ... >>> d =dict() >>> dd = deriveddict() >>> operator.isSequenceType(d) False >>> operator.isSequenceType(dd) True The last statement returns False in Python 2.3.4. ---------------------------------------------------------------------- >Comment By: Raymond Hettinger (rhettinger) Date: 2006-11-27 13:28 Message: Logged In: YES user_id=80475 Originator: NO Hmm, it may be possible to make the test smarter by checking base classes known mappings or known sequences in cases where the __getitem__ method hasn't been overridden. That would reduce false positives in cases like this where there is some hint as to whether the __getitem__ method is for mapping or for sequence behavior. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1575169&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
