|Original Author DOI| |PyPI badge|

|OWL-RL Logo|

.. |Original Author DOI| image:: https://zenodo.org/badge/9385/RDFLib/OWL-RL.svg
:target: http://dx.doi.org/10.5281/zenodo.14543

.. |PyPI badge| image:: https://badge.fury.io/py/owlrl.svg
:target: https://badge.fury.io/py/owlrl

.. |OWL-RL Logo| image:: https://raw.githubusercontent.com/RDFLib/OWL-RL/master/OWL-RL.png
:width: 250
:target: http://owl-rl.readthedocs.io/

OWL-RL

A simple implementation of the OWL2 RL Profile, as well as a basic RDFS inference, on top of RDFLib, based on forward chaining.

This package is a Python library that also contains a couple of scripts:

• scripts/RDFConvertService: a CGI script to invoke the library. It may have to be adapted to the local server setup.

• scripts/owlrl: a script that can be run locally on to transform a file into RDF (on the standard output). Run the script with -h to get the available flags.

Installation

This package requires RDFLib 7.1.3 as its only dependency and it can be installed from the Python Package index in the usual way:

::

pip install owlrl

or

::

poetry add owlrl

Use

This package can run inference according to RDFS and/or OWL-RL.

For details on RDFS, see the RDF Semantics Specification; for OWL 2 RL, see the OWL 2 Profile specification.

.. _RDF Semantics Specification: http://www.w3.org/TR/rdf11-mt/
.. _OWL 2 Profile specification: http://www.w3.org/TR/owl2-profiles/#Reasoning_in_OWL_2_RL_and_RDF_Graphs_using_Rules

View the OWL-RL documentation online: http://owl-rl.readthedocs.io/

License

This software is released under the W3C© SOFTWARE NOTICE AND LICENSE. See LICENSE.txt <LICENSE.txt>_.

Support & Contacts

For general "how do I..." queries, please use https://stackoverflow.com and tag your question with rdflib. Existing questions:

• https://stackoverflow.com/questions/tagged/rdflib

If you want to contact the rdflib maintainers, please do so via:

• the rdflib-dev mailing list: https://groups.google.com/group/rdflib-dev
• the chat, which is available at gitter <https://gitter.im/RDFLib/rdflib>_ or via matrix #RDFLib_rdflib:gitter.im <https://matrix.to/#/#RDFLib_rdflib:gitter.im>_

Development

Changes

To view the changelog for this software library, see `CHANGELOG.rst <CHANGELOG.rst>`_.

Release Procedure

• update all the version numbers

  • pyproject.toml
  • README.rst

• remove the current dist/ dir

• build the new distribution

• test the metadata rendering

• test push it to PyPI

• actually push it to PyPI

::

rm -vf dist/*
poetry build
bsdtar -xvf dist/owlrl-*.whl -O '*/METADATA' | view -
bsdtar -xvf dist/owlrl-*.tar.gz -O '*/PKG-INFO' | view -

poetry publish --dry-run
poetry publish -u __token__ -p <OWL-RL PyPI Token>

• commit the version update

• tag it

• push the commits & tag to GitHub

• make a GitHub release

  • reuse the CHANGELOG entry for the release