Here is a partial port of python 3 difflib package. Its main goal was to make available a unified diff implementation, mostly for testing purposes.

The following class and functions have be ported:

• SequenceMatcher
• unified_diff()
• context_diff()

Related doctests and unittests have been ported as well.

I have barely used to code yet so do not consider it being production-ready. The API is likely to evolve too.