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[Python-Dev] Enum: subclassing?

Eli Bendersky eliben at gmail.com
Wed May 1 23:04:11 CEST 2013 
On Wed, May 1, 2013 at 2:00 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:

> On Wed, 1 May 2013 13:57:11 -0700
> Eli Bendersky <eliben at gmail.com> wrote:
> >
> > I still don't understand what you mean, sorry. Like, this:
> >
> > class MyEmptyEnum(Enum):
> >   pass
> >
> > Why would you want to subclass MyEmptyEnum ?
> >
> > Or do you mean this:
> >
> > class IntEnum(int, Enum):
> >   pass
> >
> > Now I can have:
> >
> > class SocketFamily(IntEnum):
> >   ??
> >
> > If it's the latter, then why allow subclassing explicitly just for this
> > reason?
>
> Because I may want to share methods accross all concrete subclasses of
> IntEnum (or WhateverEnum).
>

You mean this?

class BehaviorMixin:
  # bla bla

class MyBehavingIntEnum(int, BehaviorMixin, Enum):
  foo = 1
  bar = 2

Eli
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