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xslice idea | a generator slice

Oscar Benjamin oscar.j.benjamin at gmail.com
Thu Jul 11 12:34:33 EDT 2013 
On 11 July 2013 17:21, Russel Walker <russ.pobox at 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.
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