[Python-Dev] PEP 318 trial balloon (wrappers)
Phillip J. Eby
pje at telecommunity.com
Fri Mar 12 10:03:36 EST 2004
At 06:50 PM 3/11/04 -0500, Jewett, Jim J wrote:
> [transform] from:
> def x():
> class x:
> def x():
>x() is now defined exactly as it was before,
>except that it has an extra indent to the right.
>I understand most of the objections well enough to
>summarize them; I'm singling these out because I'm
>not sure I that I do.
>Phillip J. Eby:
> > It is ambiguous precisely *because* it introduces a new suite.
> > Suites in Python indicate a difference in execution context,
> > often along with introducing a new namespace. This new syntax
> > does neither.
>Today, if we wait until the declaration is finished, we can write
> for decorator in seq:
> var = decorator(var)
>How does this construct change the context or namespace any less
>than a for loop?
In your proposal, the function definition is nested, but its execution
context and namespace are unchanged. The presence of a suite implies that
either the control flow or the namespace (or both) are affected, but your
proposed syntax affects neither.
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