Python Markdown, implementation of John Gruber’s Markdown with Extension support:

Python Markdown, implementation of John Gruber’s Markdown with Extension support:
* https://github.com/Python-Markdown/markdown
* Website, docs index: https://python-markdown.github.io/sitemap.html
Good, with many features, extensible, but:
* Lacks cuddled lists by default
* Explicitly will not support CommonMark: https://github.com/Python-Markdown/markdown/issues/338#issuecomment-54697337