OSQA - Stackoverflow like QA system in Python

OSQA is the open source Q&A system. It is more than just an FAQ page, it is a full-featured Q&A community. Users earn points and badges for useful participation, and everyone in the community wins. OSQA is built and maintained by a team of developers who share an interest in making a great, free, open source Q&A system available to everyone. The OSQA project is hosted and financially supported by DZone, Inc. Its features include

• A question and answer engine that’s dead simple to use, has wiki-like features and a voting system
• A social networking engine that allows you to connect with and follow other people and topics and send private messages to each other
• A reputation system that lets you give and receive props for positive contributions to the community
• A powerful search function that helps you find relevant information quickly and easily
• The ability to create groups to help narrow content focus
• The ability to export site data
• The ability to easily federate content that’s created on your site (federating content = reusing content generated on one of your sites in another)
• The ability to import data from your current or old Stack Exchange site
• Support for widgets to expand functionality
• Automatic site activity reports
• The ability to customize your site using themes
• The ability to embed videos, audio and images