On 4/24/06, Aahz <[EMAIL PROTECTED]> wrote:
> Let's go back to a pseudo-coded with statement:
>
> with EXPRESSION [as NAME]:
> BLOCK
>
> What happens while BLOCK is being executed? Again, here's what I said
> originally:
>
> EXPRESSION returns a value that the with statement uses to create a
> context (a special kind of namespace). The context is used to
> execute the BLOCK. The block might end normally, get terminated by
> a break or return, or raise an exception. No matter which of those
> things happens, the context contains code to clean up after the
> block.
I strongly object to your use of the term "namespace" here. The with
statement does *not* create a new namespace. Using the term namespace
will only confuse people who understand what it means (in Python) --
we have the global namespace, the builtin namespace, the local
namespace, classes introduce a new namespace, etc. The with-statement
does *not* create a namespace in this sense -- there's no new place
where name lookup can take place. In particular, this code prints 42:
x = 1
with whatever(doesnt_matter):
x = 42
print x
--
--Guido van Rossum (home page: http://www.python.org/~guido/)
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