GitHub - toastdriven/pylev: A pure Python Levenshtein implementation that's not freaking GPL'd. (original) (raw)

Skip to content

Navigation Menu

• • GitHub Copilot Write better code with AI
  • GitHub Advanced Security Find and fix vulnerabilities
  • Actions Automate any workflow
  • Codespaces Instant dev environments
  • Issues Plan and track work
  • Code Review Manage code changes
  • Discussions Collaborate outside of code
  • Code Search Find more, search less
• Explore
  • Learning Pathways
  • Events & Webinars
  • Ebooks & Whitepapers
  • Customer Stories
  • Partners
  • Executive Insights
• • GitHub Sponsors Fund open source developers
  • The ReadME Project GitHub community articles
• • Enterprise platform AI-powered developer platform
• Pricing

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Sign up

pylev

A pure Python Levenshtein implementation that's not freaking GPL'd.

Based off the Wikipedia code samples athttp://en.wikipedia.org/wiki/Levenshtein_distance.

Requirements

• Python 2.7.X, Python 3.3+ or PyPy 1.6.0+

Usage

Usage is fairly straightforward:

import pylev distance = pylev.levenshtein('kitten', 'sitting') assert distance == 3

License

New BSD.

Tests

Setup:

$ git clone https://github.com/toastdriven/pylev.git $ cd pylev

Running:

$ python -m unittest tests

Alternatives

• https://pypi.org/project/levenshtein/ - GPL
• https://pypi.org/project/python-Levenshtein/ - GPL
• https://pypi.org/project/fuzzywuzzy/ - GPL
• https://pypi.org/project/pylevenshtein/ - GPL
• https://pypi.org/project/leven/ - Unknown license & requires Cython

Version History

• v1.5.0

  • Added an alternatives section. Thanks to @graingert for the start!

• v1.4.0

  • Updated for current versions of Python
  • Integrated a better Travis matrix. Thanks to @graingert!
  • Fixed mistaken docs about the assert. Thanks to @adamchainz!
  • Reorganized the package.
  • Blacked all the source code.

• v1.3.0

  • Implemented a considerably faster variants (orders of magnitude).
  • Tested & working on Python 2.7.4, Python 3.3.1 & PyPy 1.9.0.

• v1.2.0

  • Fixed all incorrect spellings of "Levenshtein" (there's no "c" in it).
  • Old methods are aliased for backward-compatibility.

• v1.1.0

  • Implemented a much faster variant (several orders of magnitude).
  • The older variant was renamed to classic_levenschtein.
  • Tested & working on Python 3.3 & PyPy 1.6.0 as well.

• v1.0.2

  • Python packaging is REALLY hard. Including the README this time.

• v1.0.1

  • Python packaging is hard. Including the README this time.

• v1.0.0

  • Initial release, just the naive implementation of Levenshtein.