[Python-Dev] Enum: subclassing?
Guido van Rossum
guido at python.org
Wed May 1 20:14:36 CEST 2013
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)
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