I've found a great python library implementing Levenshtein functions (distance, ratio, etc.) at http://code.google.com/p/pylevenshtein/ but the project seems inactive and the documentation is nowhere to be found. I was wondering if anyone knows better than me and can point me to the documentation.
You won't have to generate the docs yourself. There's an online copy of the original Python Levenshtein API: http://www.coli.uni-saarland.de/courses/LT1/2011/slides/Python-Levenshtein.html