[Python-Dev] List comprehensions

[Tim Peters]

[Gerald S. Williams, on listcomp (non)scopes]
> No problem. As long as it was decided that there's a use for
> the current behavior, I won't question it.

I'm not sure there's a use for it, but I am sure I'd shoot any coworker who
found one and relied on it <wink>.  Python didn't have lexical scoping at
the time listcomps were getting hammered out, and it would have been nuts to
introduce a "local scope" for a single, isolated construct.  Then and now,
the semantics of listcomps can be exactly explained via a straightforward
transformation to a for-loop.  Now that we have lexical scoping, a local
index vrbl would also be easy to explain -- but it would be "a change".