[Python-Dev] namespace for generator expressions (original) (raw)

Delaney, Timothy C (Timothy) tdelaney at avaya.com
Mon Jan 26 17:02:17 EST 2004

From: Guido van Rossum

> I'm happy to see progress on the generator expressions implementation, > but I think the specification of namespaces, which is just a sketch, > might be simplified. Ouch! Where were you when this PEP was discussed on python-dev? I was originally strongly in your camp, but Tim and several others convinced me that in every single case where a generator expression has a free variable, you want early binding, not late.

I think I agree with Jeremy. I was originally in the early-binding camp, but I think we're better off trusting the programmer.

How often is a generator expression not going to be evaluated almost immediately? I guess, when they're passed to a function. But even in that case, how often are the bindings going to change? Except in pathological cases, they won't.

Anyway, got a meeting to go to :(

Tim Delaney

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