[Python-3000] Sky pie: a "var" keyword

[Fredrik Lundh]

Mike Krell wrote:

> The fact that this issue gets raised over and over again tells me that
> I'm not alone in thinking this is a big language wart.

there's no connection whatsoever between things that are raised now and 
then in various forums, and things that are real "seriously hurts people
trying to get things done in Python" warts.

the vast majority of all Python programmers never uses nested functions 
at all.

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