Bugs item #1733184, was opened at 2007-06-07 21:30 Message generated for change (Comment added) made by rhettinger You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1733184&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 2.5 Status: Open Resolution: None Priority: 5 Private: No Submitted By: L. Peter Deutsch (lpd) Assigned to: Nobody/Anonymous (nobody) Summary: slice type is unhashable Initial Comment: Patch # 408326 is a "bug fix" that makes slice objects comparable but explicitly NOT hashable. I don't understand why Guido thinks this is the right behavior for them: they are immutable, have well-defined state, do not include references to mutable objects, and can be compared property for equality. Why shouldn't they be usable as dictionary keys? I have an application that really would like them to be usable as such. I know I can define a class Slice of my own .. but that seems so silly. ---------------------------------------------------------------------- >Comment By: Raymond Hettinger (rhettinger) Date: 2007-06-08 00:24 Message: Logged In: YES user_id=80475 Originator: NO FWIW, you have a easy work-around. Use repr(yourslice) as the dictionary key. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1733184&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
