[issue17343] Add a version of str.split which returns an iterator

[Raymond Hettinger]

Raymond Hettinger added the comment:

If someone wants whip-up a patch for str.iter_index(), I would be happy to review it.   Be sure to add a test case to make sure that the results are non-overlapping:   list('aaaa'.iter_index('aa')) == [0, 2]

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assignee:  -> rhettinger

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17343>
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