In article <200311301650.hAUGofH28925@c-24-5-183-134.client.comcast.net>, Guido van Rossum <guido@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