Warnings generated when run against the current SPDX 3 Model

[goneall]

The following warnings are generated when running against the SPDX 3 model:

C:\Users\gary\git\spec-parser\venv\Lib\site-packages\rdflib\plugins\serializers\rdfxml.py:280: UserWarning: Assertions on rdflib.term.BNode('Nff3935e9f1bc44e4b727a01139b2bb3f') other than RDF.first and RDF.rest are ignored ... including RDF.List
  self.predicate(predicate, object, depth + 1)

Attached is a zip of the model directory:
model.zip

[zvr]

Yes, it's a RDFlib limitation (RDFlib is the Python library used for handling RDF).
One of the serializers (the "prettyXML" one) does not handle assertions other than first and rest (as it says).

You can check it on the source code upstream at https://rdflib.readthedocs.io/en/stable/_modules/rdflib/plugins/serializers/rdfxml.html
(search for # Warn that any assertions on object to get the exact line)

This started appearing when we introduced blank nodes (I think all warnings are about blank nodes).

I have not had the time to compare all different serialization to establish what is actually missing and how much of a problem it is in practice.

[goneall]

I have not had the time to compare all different serialization to establish what is actually missing and how much of a problem it is in practice.

I have not seen any issue myself in the produced model artifacts.

[zvr]

OK, after further research, my comment above still holds.

The outcome is that the ontology generated by that specific serializer (the "prettyXML" one) does not contain the RDF that specifies that a property of a Vocabulary type has to take only one the values of the Vocabulary.

Presumably this will be fixed in RDFlib (upstream) at some point.

[zvr]

Closing this as nothing to do here; waiting for RDFlib fix.