On Fri, Apr 26, 2013 at 3:01 PM, Steven D'Aprano <[email protected]> wrote: > On 26/04/13 13:22, Greg wrote: >> >> On 26/04/2013 3:12 p.m., Glenn Linderman wrote: >>> >>> On 4/25/2013 7:49 PM, Nick Coghlan wrote: >> >> >>>> You couldn't create an enum of callables, but that would be a >>>> seriously weird thing to do anyway.... >>> >>> >>> But aren't all classes callable? >> >> >> An enum of classes would be seriously weird as well, I think. > > I don't think iscallable will work, since that descriptors like > staticmethod and classmethod aren't callable. Nor are properties.
My point was there *are* broad categories that we can reasonably say "you can't use these as values in an enumeration". Callables are one, descriptors are probably another. Alternatively, we can flip it around and require that each enum definition nominate an expected value type (defaulting to int) and only convert class attributes that are instances of that type to instances of the enum class. Either can be made to work, so it's really Guido's call as to which he would prefer. As Barry noted, the next step is actually for someone to create a proof of concept that shows the merge is possible in practice, not just theory. Cheers, Nick. -- Nick Coghlan | [email protected] | Brisbane, Australia _______________________________________________ Python-Dev mailing list [email protected] http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
