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Mon Dec 12 23:59:53 CET 2005 · http://mail.python.org/pipermail/python-dev/2005-December/058633.html

On 12/12/05, Phillip J. Eby <pje at telecommunity.com> wrote:
> At 02:25 PM 12/12/2005 -0600, Ian Bicking wrote:
> >That looks good to me.  Well, I actually try not to use cls as the first
> >argument to metaclass's __new__ method, because there's so many classes
> >being tossed about at that point that I try to be more explicit.  But I
> >don't consider that a common enough issue to be worth mentioning in PEP 8.
>
> I usually use 'meta' as the first argument of a metaclass __new__ or a
> metaclass classmethod, to avoid this particular bit of confusion.

...while I use 'mcl' for the same purpose (seems closer to me in
spirit to 'cls' than 'meta' would be); Guido said he liked that, at
the time (a couple of years ago) when he was following a talk of mine
on metaclasses where I introduced this convention.

Alex

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[Python-Dev] PEP 8 updates/clarifications