[Python-Dev] Explicit Lexical Scoping (pre-PEP?)

Phillip J. Eby pje at telecommunity.com
Wed Jul 5 17:57:03 CEST 2006


At 05:40 AM 7/5/2006 -0400, Scott Dial wrote:
>Guido van Rossum wrote:
> > Would this also use ..num to refer to num in an outer scope two levels 
> removed?
>
>I realize this was a wink, but it is a valid problem with the
>"dot"-proposal.

Actually, it isn't.  :)  See below.


>def foo(n):
>    def bar(n):
>      def baz():
>        return .n
>
>So, which 'n' outer 'n' is being referenced?

Notice that this is a made-up example.  Existing Python scoping rules don't 
allow this!  Thus your example is not a bug, it's a feature request.  And I 
say we say "no" to adding this feature.  ;-)



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