WikiClone

A software system that implements the features of the OriginalWiki.

Other Python Wiki clones:

PikiPiki
Pyle: http://homepages.kcbbs.gen.nz/~tonyg/pyle.html
ZWiki: http://joyful.com/zwiki/ZWiki (a Zope product; an evolved version is used on http://www.zope.org, which is also the place to learn more about Zope)