while expression feature proposal
Paul Rubin
no.email at nospam.invalid
Wed Oct 24 19:08:21 EDT 2012
Ian Kelly <ian.g.kelly at gmail.com> writes:
> j = int(random() * n)
> while j in selected:
> j = int(random() * n)
from itertools import dropwhile
j = dropwhile(lambda j: j in selected,
iter(lambda: int(random() * n), object()))
.next()
kind of ugly, makes me wish for a few more itertools primitives, but I
think it expresses reasonably directly what you are trying to do.
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