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Wed Mar 24 11:21:57 EST 2004 · http://mail.python.org/pipermail/python-dev/2004-March/043468.html

    >> I think this use case is rather elegant:
    >> 
    >> def singleton(cls):
    >>     return cls()
    >> 
    >> class Foo [singleton]:
    >>     ...

    Guido> And how would this be better than

    Guido>     class Foo(singleton):
    Guido>         ...

    Guido> (with a suitable definition of singleton, which could just be
    Guido> 'object' AFAICT from your example)?

"Better"?  I don't know.  Certainly different.  In the former, Foo gets
bound to a class instance.  In the latter, it would be a separate step which
you omitted:

    class Foo(singleton):
        ...
    Foo = Foo()

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[Python-Dev] PEP 318 - posting draft