[Python-3000] Metaclasses in Py3K
Phillip J. Eby
pje at telecommunity.com
Tue Dec 12 20:17:15 CET 2006
At 11:07 AM 12/12/2006 -0800, Thomas Wouters wrote:
>I do wonder why classes don't use fast locals, though.
Because fast locals were an optimization added for functions. Before that,
there was no such thing as fast locals: everything used dictionaries.
>Building the locals dict from the fast locals at the end of the class
>suite execution seems more logical to me than what happens now...
Well, code that does things like this:
def some_func(an_ob, whatever):
some_func = some_func
Wouldn't work any more if you switched to fast locals. Whether you
consider that a good thing or a bad thing depends on your perspective, I
suppose. Some people complain that the above pattern doesn't work in
functions, due to the existence of fast locals. (I'm not one of them,
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