Paul Boddie wrote: > Yes, he wants range to return an iterator, just like xrange more or > less does now. Given that xrange objects support __getitem__, unlike a > lot of other iterators (and, of course, generators), adding > __contains__ wouldn't be much of a hardship. Certainly, compared to > other notational conveniences bounced around on the various development > lists, this one would probably provide an order of magnitude > improvement on the usual bang per buck development ratio.
xrange already has __contains__. The problem is, it's implemented by a highly-inefficient sequential search. Why not modify it to merely check the bounds and (value - start) % step == 0? -- http://mail.python.org/mailman/listinfo/python-list
