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[Python-Dev] Minor change to Enum -- should it go into 3.5.2?

Guido van Rossum gvanrossum at gmail.com
Sun May 8 18:29:20 EDT 2016 
If enum were provisional it would be okay, but since it isn't, I think this
change can't go into 3.5.2. Think if this: could any code that works in
3.5.1 be broken by the change?

--Guido (mobile)
On May 8, 2016 1:11 PM, "Ethan Furman" <ethan at stoneleaf.us> wrote:

> Currently, the Enum creation process ignores __dunder__ attributes, and
> blocks all _sunder_ attributes.
>
> Because of this, the enum34 backport used __order__ instead of _order_ to
> provide a mechanism for ordering the enum members (which I never really
> liked).
>
> However, I've been working on my aenum [1] package, which uses several
> other _sunder_ attributes (for python2 compatibility) so I enabled _order_
> instead and promote that spelling in the docs.
>
> Unlike the other _sunder_ attributes, _order_ has no meaningful affect in
> Python 3 so I'd like to change the stdlib Enum to allow it (and either
> ignore completely, or check it is the same as the definition order).
>
> My question is:  Should I put this change in 3.5.2?
>
> - Yes means 3.5.2+ will work with _order_, 3.4, 3.5.0, and 3.5.1
>   will not;
>
> - No means 3.4 and all of 3.5 will not.
>
> --
> ~Ethan~
>
>
> [1] https://pypi.python.org/pypi/aenum
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