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Sun Sep 5 17:30:56 CEST 2004 · https://mail.python.org/pipermail/python-dev/2004-September/048622.html

On Sun, 2004-09-05 at 00:32, Tim Peters wrote:

> You'll rarely hear me say this <wink>, but fiddling classes at class
> creation time is exactly what metaclasses are for.  For example,
> suppose you said a Template subclass could define a class variable
> `idpat`, containing a regexp matching that subclass's idea of "an
> identifier".

Very cool idea, thanks Tim!  I like that much more than forcing users to
specify the entire pattern.

-Barry

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[Python-Dev] Re: Alternative Implementation for PEP 292:Simple String Substitutions