What looks to be the only current and active open source package:
- FuXi 1.0: A Python-based, bi-directional logical reasoning system for the semantic web
This is a Java package but it has a Python console (via Jython):
A commercial package that has python support:
- Python Sesame API Tutorial for AllegroGraph 4.2
Some packages that are admittedly incomplete:
Some older packages that appear inactive:
- OWL Logic
- Closed World Machine
- RDF Closure
- TRAMP
- sparta
- seth
- surnia
