PwyKy is an extensive Python wiki licensed under GPL 2 and written by the same author as the WyPy 18-line wiki, SeanPalmer. More information is available at http://infomesh.net/pwyky/

There's also a working example for you to use: http://sbp.f2o.org/pwyky/
''(BrokenLink 2007-09-14)''

Feedback most welcome, either here or by email.