[issue2986] difflib.SequenceMatcher not matching long sequences

[Terry J. Reedy]

Terry J. Reedy <tjreedy at udel.edu> added the comment:

Anyone can post on Python-dev, but non-developers should do so judiciously and with respect for the purpose of the list. It is also polite to introduce oneself with the first post. In any case, Tim Peters has approved making some change. The remaining question is exactly what.

There is no problem with extending the API in 3.2. The debate there is over 2.7.

My fourth proposal, detailed on pydev, is to introduce a fourth paramater, 'common', to set the frequency threshold to None or int 1-99.

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<http://bugs.python.org/issue2986>
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