[Python-3000] Metaclass syntax?

[Jonathan LaCour]

Guido van Rossum wrote:
> This has usually been solved by creating a non-meta class whose only
> purpose is to introduce the new metaclass. You'd write
>
> class TheLarch(KindsOfTrees, deciduous): ...
>
> and the metaclass would be called KindsOfTreesMeta.

I think many people find this ugly.  I have a little helper function  
that
I use to make things a little clearer (at least in my eyes).  Of course,
these things are always in the eye of the beholder (as evidenced by the
original message).

     def of_type(metaclass):
         class MetaclassMixin(object):
             __metaclass__ = metaclass
         return MetaclassMixin

... and then I simply use this on my classes when I define them:

     class MyClass(of_type(SomeMetaclass)):
         ...

I find this to be fairly useful, and simple.

--
Jonathan LaCour
http://cleverdevil.org