RDF Canonicalization in Python

This is an implementation of the RDF Dataset Canonicalization algorithm, also referred to as RDFC-1.0. The algorithm has been published by the W3C RDF Dataset Canonicalization and Hash Working Group.

The implementation here is based on typescript implementation present in the following repository:

• https://github.com/iherman/rdfjs-c14n

Also implements

• graph_diff: Same as in https://rdflib.readthedocs.io/en/stable/_modules/rdflib/compare.html but using the RDFC10 canonicalization algorithm.
• to_hash: Generates a hash after canonicalizing the RDF graph.

Installation

pip install .

Running tests

All test cases are in tests directory. To run tests, use the following command:

# Run tests on installed package
pytest --import-mode=importlib -v -s ./tests/test_rdfc10.py 

# Graph diff test 
pytest  --import-mode=importlib -v -s ./tests/test_rdfc10.py -k test_graph_diff

# Hash test
pytest -v -s ./tests/test_rdfc10.py -k test_to_hash

Limitations

• Currently only supporting n-triples. n-quads support is not yet implemented.