difflib . ... usr/local/Python-2.5/lib/python2.5/difflib.py . Module Docs . ... Use SequenceMatcher to return list of the best "good enough" matches. ... For two lists of strings, return a delta in context diff format. ... Return one of the two sequences that generated an ndiff delta. ... For producing human-readable deltas from sequences of lines of text. ... SequenceMatcher both to compare sequences of lines, and to compare . ... Compare two sequences of lines; generate the resulting delta. ...