I was looking for an RDF project for django and I cant find any active.
This seems to be a good one http://code.google.com/p/django-rdf, but the last commit was in 2008,
http://code.google.com/p/djubby/
SURF is useful as a RDF->object mapper (or RDFAlchemy)
injecting rdfa into your templates should work either (if you want to avoid triplestores)
you can also expose your database as a sparql endpoint using a tool such as http://d2rq.org/