On Tue, 10 Sep 2013 14:44:01 +0200 "Martin v. Löwis" <mar...@v.loewis.de> wrote: > Am 10.09.13 14:35, schrieb Antoine Pitrou: > >> ['FOO'] or ['foo']? Both answers are justifiable. Both are possibly > >> even useful depending on context... > > > > I think it would be best to leave it as an implementation detail, > > because whichever is easiest to implement depends on the exact > > implementation choices (e.g. C vs. Python). > > I think this is the point where the datatype is *not* clearly > straight-forward, and thus deserves a PEP.
Not saying you're necessary wrong, but a few data points: - defaultdict was added without a PEP: http://bugs.python.org/issue1433928 - Counter was added without a PEP: http://bugs.python.org/issue1696199 - ChainMap was added without a PEP: http://bugs.python.org/issue11089 http://bugs.python.org/issue11297 - namedtuple was added without a PEP: https://mail.python.org/pipermail/python-dev/2007-February/071196.html (no tracker reference for its addition) OrderedDict, however, came with a PEP: http://www.python.org/dev/peps/pep-0372/ > I think it would be a flaw to have this detail implementation-defined. > This would be like saying that it is implementation-defined which > of A,B,C is returned from "A and B and C" if all are true. Ok, it seems everyone (except me :-)) agrees that it should return the first key value, so that's how it will be. Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
