PikiPiki is a simple WikiWiki clone written in the PythonLanguage. PikiPiki has been further developed by Jürgen Hermann and is available as MoinMoin.
PikiPiki's author has made it [publicly available], but since he is no longer actively developing it, he suggests PikiePikie or MoinMoin.
You may be looking for PikiePikie.
DavidForrest's [PikiPiki] is unfortunately named with the same name.