[Python-Dev] PEP 318 - posting draft

[Phillip J. Eby]

At 09:41 PM 3/24/04 +0100, Alex Martelli wrote:

>Perhaps something like...:
>
>class metaSingleton(type):
>     def __new__(cls, classname, classbases, classdict):
>         result = type.__new__(cls, classname, classbases, classdict)
>         if classbases:
>             return result()
>         else:
>             return result

By the way, there's a bug in the above implementation: it can't be safely 
mixed with other metaclasses, because it calls 'type' directly instead of 
using 'super()'.