py-horned-owl-certus 0.5.1

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Horned Owl Python Bindings

This is a fork of https://github.com/jannahastings/py-horned-owl with various improvements

• Supports horned-owl 1.0, which introduced significant API changes
• Adds a few more utilitiy functions, including write_to_rdf_string

Installation

Published version

To install the published library:

pip install py_horned_owl_certus

From sources

To build locally from sources, you will need Rust, PyO3 and Maturin.

Check out this repository: git clone https://github.com/certusgroup/py-horned-owl/

In the directory py-horned-owl, create and activate a virtual Python environment:

virtualenv py-horned-owl

source bin/activate

Then you can get maturin to build the library and install it into the virtual Python environment with:

maturin develop

Usage

The library supports loading ontologies from .owl (RDF-XML) and .owx (OWL-XML) files via horned-owl's parsing functionality. ROBOT can transform ontologies that are in other OWL flavours into one of these formats using robot convert.

Example of simple usage:

import pyhornedowl

ontoname = "family.owx"

onto = pyhornedowl.open_ontology(ontoname)

print (f"Loaded ontology has {len(onto.get_classes())} classes.")
print (f"Loaded ontology has {len(onto.get_axioms())} axioms.")

for c in onto.get_classes():
    print(onto.get_axioms_for_iri(c))