On Thu, Jul 11, 2013 at 10:34 AM, Oscar Benjamin <oscar.j.benja...@gmail.com> wrote: > On 11 July 2013 17:21, Russel Walker <russ.po...@gmail.com> wrote: >> To confess, this is the second time I've made the mistake of trying to >> implement generator like functionality of a builtin when there already is on >> in itertools. Need to start studying that module abit more I think. I'm >> looking at the docs now and I see there are actually a couple of >> isomethings(). > > Your xslice (or mine) would still be better than islice when the step > size is large; islice has to iterate over all the skipped elements > which could be wasteful if the input is indexable. Also islice doesn't > support negative values for start, stop or step which xslice does.
Ah, that's an interesting point. Of course the corollary to that is that xslice requires a sequence, not just an iterable. -- http://mail.python.org/mailman/listinfo/python-list
