[Python-Dev] constant/enum type in stdlib

[Michael Foord]

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:
>>>>
>>>> SOME_CONST = Constant('SOME_CONST', 1)
>>>> OTHER_CONST = Constant('OTHER_CONST', 2)
>>>>
>>>> or:
>>>>
>>>> Constants = make_constants('Constants', 'SOME_CONST OTHER_CONST', start=1)
>>> Or:
>>>
>>> Constants = make_constants('Constants', 'SOME_CONST OTHER_CONST',
>>>                              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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