I think it would be useful if iterators on sequences had the __index__ method so that they could be used to slice sequences. I was writing a class and wanted to return a list iterator to callers. I then wanted to let callers slice from an iterator's position, but that isn't supported without creating a custom iterator class.
Are there reasons for not supporting this generally? I realize not all iterators would have the __index__ method, but that seems ok. In Python 3, maybe this could be called a SequenceIterator -Brad -- http://mail.python.org/mailman/listinfo/python-list
