[Python-Dev] constant/enum type in stdlib (original) (raw)

Michael Foord fuzzyman at voidspace.org.uk
Tue Nov 23 17:07:30 CET 2010

On 23/11/2010 16:05, Antoine Pitrou wrote:

Le mardi 23 novembre 2010 à 15:40 +0000, Michael Foord a écrit :

On 23/11/2010 15:30, Antoine Pitrou wrote:

Le mardi 23 novembre 2010 à 15:15 +0000, Michael Foord a écrit :

There are still two reasonable APIs (unless you have changed your mind and think that sticking with plain integers is best), of which I prefer the latter:

SOMECONST = Constant('SOMECONST', 1) OTHERCONST = Constant('OTHERCONST', 2) or: Constants = makeconstants('Constants', 'SOMECONST OTHERCONST', start=1) Or: Constants = makeconstants('Constants', 'SOMECONST OTHERCONST', values=range(1, 3)) Again, auto-enumeration is useless since it's trivial to achieve explicitly. Ah, I see. It is the auto-enumeration you disliked. Sure - not a problem. I think the step that Nick described, of evaluating places in the standard library that this could be used, is a good one. I'll try to get around to it and perhaps attempt to resuscitate the PEP. (Any suggestions as to an appropriate module if having it live in its own module is still an objection?) We already have a bunch of bizarrely unrelated stuff in collections (such as Callable), so we could put enum there too.

I guess it creates collections of constants...

Michael

Regards

Antoine.

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