Raymond Hettinger added the comment: > What behavior both looks wrong and gets improved by the change?
The incorrect behavior is that matching_blocks is incorrectly cached so that calls to get_matching_blocks() returns an answer without the named tuple (in contravention of the documented behavior): >>> s = SequenceMatcher(None, "abxcd", "abcd") >>> s.get_matching_blocks() [Match(a=0, b=0, size=2), Match(a=3, b=2, size=2), Match(a=5, b=4, size=0)] >>> s.get_matching_blocks() [(0, 0, 2), (3, 2, 2), (5, 4, 0)] >>> s.get_matching_blocks() [(0, 0, 2), (3, 2, 2), (5, 4, 0)] ---------- priority: normal -> high stage: test needed -> needs patch versions: +Python 3.4, Python 3.5 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue21635> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
