loop scope

[Josiah Carlson]

> One way to avoid this problem is to have an explicit scope-creating
> construct instead.
> 
> def foo(a):
>    scope outer:
>       a = 3
>       scope inner:
>          a = 4
>          print a            # prints 4
>          print outer.a      # prints 3
>          print foo.a        # prints the function parameter
>       print a               # inner.a is out of scope, so prints 3
>       foo.b = 5             # Creates a new function-scope variable.
>    print b                  # prints 5

Ick.  Thank god Python doesn't seem to be heading in this direction.

  - Josiah