Bugs item #1179957, was opened at 2005-04-09 17:10 Message generated for change (Comment added) made by rhettinger You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1179957&group_id=5470
Category: Documentation Group: Python 2.5 Status: Open Resolution: None Priority: 5 Submitted By: Skip Montanaro (montanaro) Assigned to: Nobody/Anonymous (nobody) Summary: Missing def'n of equality for set elements Initial Comment: The documentation of the sets module doesn't describe the properties of set elements that they must have to properly work in sets (at least I didn't see it described). In creating a set of instances, I had to sort of stumble around and discover that the class needed to define both __eq__ and __hash__. Either alone didn't seem to work. Perhaps I've got it all wrong and there's a better way to do things. It would be nice if the docs described things officially though. ---------------------------------------------------------------------- >Comment By: Raymond Hettinger (rhettinger) Date: 2005-04-10 12:20 Message: Logged In: YES user_id=80475 It does say that sets are implemented using dictionaries. That implies that the requirements for set elements are the same as for dictionary keys. Will see if I can add some clarifying wording. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1179957&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
