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[Python-Dev] enum discussion: can someone please summarize open issues?

Eli Bendersky eliben at gmail.com
Thu May 2 18:00:35 CEST 2013 
On Thu, May 2, 2013 at 8:57 AM, Barry Warsaw <barry at python.org> wrote:

> On May 02, 2013, at 08:42 AM, Larry Hastings wrote:
>
> >So, for the second time: How can Color.red and MoreColor.red be the same
> >object when they are of different types?
>
> It's a moot point now given Guido's pronouncement.
>

Correct. There's no Color.red and MoreColor.red. Subclassing is allowed
only of enums that define no members. So this is forbidden:

>>> class MoreColor(Color):
...   pink = 17
...
TypeError: Cannot subclass enumerations

But this is allowed:

>>> class Foo(Enum):
...   def some_behavior(self):
...     pass
...
>>> class Bar(Foo):
...   happy = 1
...   sad = 2
...

Eli
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