[Python-Dev] towards a faster Python

["Martin v. Löwis"]

Guido van Rossum wrote:

> I still would like to be able to say "if you add a module global that
> corresponds to a built-in name used in the module, the module may
> continue to use the built-in name".  As long as we can detect *most*
> of the ways of inserting such module globals, the remaining ways could
> be declared illegal without making them impossible.

I'd phrase this differently: Those cases just get a different semantics
then they have now; the module-level name is ignored unless explicitly
qualified. In the spirit of C, hiding builtins would cause "undefined 
behaviour" or "implementation-defined behaviour", and not be "illegal".

Regards,
Martin