[Python-Dev] Enum: subclassing?

[Guido van Rossum]

On Wed, May 1, 2013 at 11:04 AM, Eli Bendersky <eliben at gmail.com> wrote:
> Actually, in flufl.enum, IntEnum had to define a magic __value_factory__
> attribute, but in the current ref435 implementation this isn't needed, so
> IntEnum is just:
>
> class IntEnum(int, Enum):
>     '''
>     Class where every instance is a subclass of int.
>     '''
>
> So why don't we just drop IntEnum from the API and tell users they should do
> the above explicitly, i.e.:
>
> class SocketFamily(int, Enum):
>   AF_UNIX = 1
>   AF_INET = 2
>
> As opposed to having an IntEnum explicitly, this just saves 2 characters
> (comma+space), but is more explicit (zen!) and helps us avoid the
> special-casing the subclass restriction implementation.

Sounds good to me.

--
--Guido van Rossum (python.org/~guido)