I'm currently looking at incorporating some more markdown functionality in a few personal Python centric projects I have. There is some interesting stuff in this space.
Pyhame is a static html generator for markdown with support for code highlighting. Installation looks simple.
Ever2Simple is a Python module for migrataing Evernote documents to Simplenote with conversion to markdown. This looks very interesting.
Leaf is billed as a Python library for parsing HTML. But there is a nice feature to convert html to markdown.