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The followingbenchmark compares the performance in the originaldifflib implementation, the librarycdifflib and CyDifflib

You can install this library fromPyPI with pip:

pip install cydifflib

CyDifflib provides binary wheels for all common platforms.

For a source build (for example from a SDist packaged) you only require a C++11 compatible compiler. You can install directly from GitHub if you would like.

pip install git+https://github.com/rapidfuzz/CyDifflib.git@main

The library can be used in the same way as difflib. Just use thecydifflib module instead ofdifflib:

# from difflib import SequenceMatcherfromcydifflibimportSequenceMatcher

The officialdocumentation of difflib explains how to use the library. If you work with a library which internally uses some of the algorithms of difflib it is possible to replace the implementation before importing this library. E.g. forthefuzz this can be done in the following way:

fromcydifflibimportSequenceMatcherimportdifflibdifflib.SequenceMatcher=SequenceMatcherfromthefuzzimportfuzz

PRs are welcome!

• Found a bug? Report it in form of anissue. Any difference in behavior to difflib is considered as a bug.
• Can make something faster? Great! Just avoid external dependencies and remember that external behavior does not change.
• Have no time to code? Tell your friends and subscribers about CyDifflib.

Thank you ❤️

Copyright 2021-presentMax Bachmann.CyDifflib is free and open-source software licensed under theMIT License.