[Python-Dev] Re: "groupby" iterator
David Eppstein
eppstein at ics.uci.edu
Sun Nov 30 20:01:20 EST 2003
In article
<200311301650.hAUGofH28925 at c-24-5-183-134.client.comcast.net>,
Guido van Rossum <guido at python.org> wrote:
> But I don't think there's a good use case
> for what he wants to do instead: save enough state so that the
> subiterators can be used in arbitrary order. An application
> that saves the subiterators for later will end up saving a copy of
> everything, so it might as well be written so explicitly
I don't have a good explicit use case in mind, but my objective is to be
able to use itertools-like functionals without having to pay much
attention to which ones iterate through their arguments immediately and
which ones defer the iteration until later.
--
David Eppstein http://www.ics.uci.edu/~eppstein/
Univ. of California, Irvine, School of Information & Computer Science
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