Osuchan2 is a project mainly written in Python, it's free.
==== OSUCHAN ====
This is a copy of the OSUChan message board.
Requirements: Bottle(the version included in OSUChan here is probably already outdated) PsycoPG2 PostgreSQL server somewhere
Installation instructions
Create an OSUChan PostgreSQL database
$ psql osuchan < sql/chantables.sql to initialize the database
Modify osuchan.py, change DSN on line 9, alter your database name if you need to.