Hello, This is about Python 2.5.2 - I don't know if there were fixes to this module in 2.6/3.0
I think I ran into a bug with difflib.SequenceMatcher class. Specifically, its ratio() method. The following: SequenceMatcher(None, [4] + [10] * 500 + [5], [10] * 500 + [5]).ratio () returns 0.0 While the same with 500 replaced by 100 returns .99... something Looking at the code of SequenceMatcher there's some caching going on when the sequences are longer than 200 elements (and indeed, I can reproduce the bug above 200 but not below). Can anyone confirm that this misbehaves and suggest a workaround ? P.S. quick_ratio() works fine, it seems. Thanks Eli -- http://mail.python.org/mailman/listinfo/python-list
