[Python-Dev] Making None a keyword

[Gustavo Niemeyer]

> Note too that we can't change the generated code at all for 2.3 unless under
> the control of a new future statement, else existing None-abusing code could
> break.

I'm trying to eat the cake and have it too, by detecting if None is
being abused and disabling the change of LOAD_GLOBAL to LOAD_CONST. If
it works (and probably will), we may then choose to include warnings,
keep it that way forever, or whatever.

-- 
Gustavo Niemeyer

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