Version 1.5.2
Pinning rdflib version to 5.0.0 until further notice
Due to major breaking changes introduced in the upgrade of rdflib 5.0.0 to 6.0.0, the rdflib version is pinned to 5.0.0 until the breaking code has been fixed.
Dropping Python 2 support
Python 2 has reached end of life. The codebase has been cleaned from Python 2 and Python 3 compatible code, all tests now run exclusively on Python 3 versions.