list comprehension problem
Ben Finney
ben+python at benfinney.id.au
Tue Nov 3 02:59:37 EST 2009
Paul Rudin <paul.nospam at rudin.co.uk> writes:
> Falcolas <garrickp at gmail.com> writes:
>
> > [s.strip() for s in hosts if s.strip()]
>
> There's something in me that rebels against seeing the same call
> twice.
Agreed. I'd probably use:
>>> lines = ["foo", " ", " bar ", "", "baz"]
>>> [s for s in (s.strip() for s in lines) if s]
['foo', 'bar', 'baz']
--
\ “[I]t is impossible for anyone to begin to learn that which he |
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Ben Finney
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