On Feb 5, 2010, at 2:49 PM, Ed Leafe wrote:
> They are more memory-efficient, because you don't have to create a complete
> copy of the list, as you would in a list comp.
I clicked 'send' before I wrote the main point: the efficiency gain in
my example isn't list comp vs. genexp; it's adding the filter to the expression
instead of iterating through potentially thousands of equality tests.
-- Ed Leafe
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