py-readability-metrics (pypi): Score text "Readability" with popular formulas and metrics including Flesch-Kincaid, Gunning Fog, ARI, Dale Chall, SMOG, Spache and more
Keywords: readability|metrics|text|difficulty|grade|level|automated-readability|coleman-liau|dale-chall|dale-chall-readability|flesch-kincaid|flesch-reading-ease|gunning-fog|hacktoberfest|readability-formulas|readability-metrics|smog|spache