pikipiki is a cooperative authoring system for the Web. It is written in Python with a strong emphasis on small, simple code, so it is well suited for adaption into your own custom Wiki. pikipiki is in the WikiWiki genre: anyone may contribute to the hypertext, and the system is intentionally minimal to encourage cooperation and community between users. pikipiki is the parent of the more featureful and complex MoinMoin system.
Release Notes: First freshmeat announcement.