[issue2057] difflib: add patch capability

[anatoly techtonik]

anatoly techtonik <techtonik at gmail.com> added the comment:

For this to move forward, PSF should accelerate work on new sane Contributor's Agreements or join Harmony (http://www.harmonyagreements.org/)

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue2057>
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