[Python-3000] PEP for Metaclasses in Python 3000

[Collin Winter]

On 3/12/07, Guido van Rossum <guido at python.org> wrote:
[snip stuff I agree with]
> On 3/9/07, Brett Cannon <brett at python.org> wrote:
> > Do the keywords have to follow the metaclass keyword, or is order
> > irrelevant?  While order makes sense, it would be a new precedent for
> > keyword arguments to have an important order.
>
> I'd like the syntax between () to be identical to that for a function
> call, i.e. including *args and **kwds. That way the cognitive load for
> the user is the smallest. Sorting out the semantics of the keywords is
> purely a runtime activity anywaty.

Woohoo! I've wanted to be able to say "class X(*args):" before, so
this is great news.

On a 2to3-related topic, will a __metaclass__ class attribute do the
same thing as a metaclass keyword argument, or will a fixer be needed
for this?

Collin Winter