BitNami OSQA Stack
Native Installer is an easy-to-install distribution of the OSQA application. It includes pre-configured, ready-to-run versions of Apache, PostgreSQL and Django so users can get a OSQA installation up and running in minutes after answering a few questions. Windows, Linux and Mac OS X operating systems are supported.
OSQA is a sophisticated Open Source Question and Answer System that can help you manage and grow online communities. OSQA is written in Python and powered by the Django application framework.