- **Group**: --> confirmed

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** [bugs:#509] showDiff() highlighting limitation due to difflib design**

**Status:** open **Labels:** General **Created:** Fri Sep 28, 2007 07:35 AM UTC by Francesco Cosoleto **Last Updated:** Sat Apr 11, 2009 09:18 AM UTC **Owner:** Francesco Cosoleto

showDiff() can fail to highlight a char-by-char difference because Python difflib seems don't support fully char-by-char comparison.

Please see in Python tracker:

* issue #1528074: "difflib.SequenceMatcher.find_longest_match() wrong result" (http://bugs.python.org/issue1528074%5C)

* issue #1678345: "A fix for the bug #1528074 [warning: quite slow]" (http://bugs.python.org/issue1678345%5C)

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