[issue24904] Patch: add timeout to difflib SequenceMatcher ratio() and quick_ratio()

[Robert Collins]

Robert Collins added the comment:

So - I'm with Victor and Raymond here. I think modifying difflib to provide external control over the poor-O components would permit many more benefits than just controlling time: you could wrap them in a timer module to get what this patch does, you could replace them with alternative implementations (e.g. parallel ones).

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nosy: +rbcollins

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