RDFLib/rdflib — pull request #323 by gweis (2013-08-16 01:18:52+00:00)
Title: make NodePickler picklable

To use the Store base class for ZODB, the whole Store instance needs to be picklable.

If for some reason the Store references a NodePickler instance (e.g. adding GraphValues to the Store), it can't be pickled anymore.

This patch fixes the problem for me.