On 11/30/03 11:35 PM -0500 Raymond Hettinger <python@rcn.com> wrote:
Okay, I've decided on this one.
Though David's idea is attractive in its generality, the use cases favor the previous implementation. IOW, there is a reasonable use case for skipping or partially consuming the subiterators (e.g. "sort s | uniq" and "sort s | uniq -d"). For the delinguent subiterators, the user can just convert them to a list if they are going to be needed later:
My implementation will skip or partially consume the subiterators, with only a very temporary additional use of memory, if you don't keep a reference to them. But I can see your arguments about visible vs silent failure modes and code complexity. -- David Eppstein http://www.ics.uci.edu/~eppstein/ Univ. of California, Irvine, School of Information & Computer Science