Python for AI: OWL and CLIPS anyone?

[Andre Meyer]

Hi Pythoneers

For a project using Python in Artificial Intelligence I am wondering
whether
useful libraries are available. My interest is primarily in

- an ontology parser/generator/editor, ideally for OWL

- a rule-based expert system (inference engine), something like CLIPS,
ideally linked to OWL

Is either of these available for Python? I have not been able to find
much
information on the Web, yet.

Thanks for hints
Andre