Owlready

This is a forum and mailing list for Owlready2. Owlready2 is a module for ontology-oriented programming in Python 3, including OWL parsers and an optimized RDF quadstore.

Links: Website -- Owlready2 on BitBucket (development repository) -- Owlready2 on PyPI (Python Package Index, stable release) -- Documentation

If you use Owlready2 in scientific works, please cite the following article:
Lamy JB.
Owlready: Ontology-oriented programming in Python with automatic classification and high level constructs for biomedical ontologies.
Artificial Intelligence In Medicine 2017;80:11-28

You may also be interested by my book on Python and ontologies, available in English and French (click on the cover on the right).

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Dynamically add restrictions after creation of class by ap

by supun

Possible issues and solutions for loading specific Owl file by wanghewen

by wanghewen

Owlready2 parsing error with sync_reasoner by tharindu_mp

by Jiba

ERROR: The system cannot find the owl file specified by yashodasw

by yashodasw

Importing and saving ontology files by Waseem85

by Waseem85

Is there any way to capture sync_reasoner() output to txt? by Tania

by Tania

owlready keep adding classes into the existing ontology while using load() by Waseem85

by Waseem85

EYE Reasoner + N3 by rdk

by Jiba

loading CIDOC CRM fails by sennierer

by sennierer

Adding value restrictions on data properties by Lindsay

by Lindsay

Adding properties to individual given its python instance (ie. of the property) by gp

by Jiba

searching classes by label in obi by gp

by gp

Owlready2 0.8 has been released! by Jiba

by Jiba

Dynamic Descriptive Logic Insertion by Sree

by Jiba

Getting the domains of the data properties by Ina

by Ina

How to access triples using Owlready2? by Anannya

by Jiba

Saving New Imported Ontologies by Lindsay

by Jiba

owl_inverse_property problem by ZhaoPengya2

by Jiba

sync_reasoner() interface to HermiT by lars

by Hermi

Can I Owlready2 pickable? by Damiano

by Damiano

Accessing the axioms (and axiom closure) of an ontology by Bijan Parsia

by bparsia

load() with coding problem by Lee

by Jiba

How do you define a chain of properties by William

by William

Object property assertion instead of Annotation assertion. by Christian

by Jiba

Error in docs example ‘reasoning-ready’ ontology by Enzo

by Jiba

Question on Property Restriction .value() and HermiT by Fabian

by Fabian

Adding classes using for loop by Ruch

by Jiba

can't mix python and owl by ZhangYu

by Jiba

Reasoning TypeError: a __bases__ item causes an inheritance cycle by rdk

by rdk

assign a weight to a ObjectProperty beetween two individuals by Christian

by Jiba

Protégé not showing Properties of entities by rdk

by rdk

Reasoning ERROR - Either a suitable parser could not be found, or parsing failed by rdk

by rdk

Introspection with owlready2 by Pierre

by Pierre

ValueError: Cannot read literal od datatype 'x'! by Dumas Anthony

by Dumas Anthony

Accessing inferences and asserstions rather than just assertions by tyler

by Jiba

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