Partial directory search question
alex23
wuwei23 at gmail.com
Wed Sep 30 20:55:25 EDT 2009
Tim Chase <python.l... at tim.thechases.com> wrote:
> If you're doing more processing than just printing it, your
> for-loop is a better (clearer) way to go. If you have lots of
> processing code, it might help to do the inverse:
>
> for filename in os.listdir(location):
> if not filename.startswith('_'): continue
> lots()
> of_processing()
> and_your_complex_logic()
> goes()
> here()
Personally, I'd still go with a generator to drive the for-loop:
underscored_files = (f for f in os.listdir(<location>) if not
f.startswith('_'))
for filename in underscored_files:
etc...
What I'm traversing in the for-loop is far more obvious (to me) from
the name of the generator than from having to parse the first few
lines of the loop. It's a lot easier to genericise that behaviour too.
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