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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Topics (850)
Replies Last Post Views
Adding new properties to classes of ontology to a file by KZ
1
by Jiba
Accessing class by its name in owlready2 by KZ
1
by Jiba
Dynamic annotations by Mathias Millet
1
by Jiba
Forward Declarations bug? by rdk
4
by Jiba
Automate Ontology Metadata by rdk
2
by rdk
Cardinality restrictions by Rusne
1
by Jiba
Onto.search(link = "*") not retrieving anything by Frack
2
by Frack
How to create SKOS annotations for an individual and blank node use owlready2 by zhiwei
2
by zhiwei
ontology merging by Jui Guram
2
by gp
TypeError: metaclass conflict: by Aleftina
8
by Aleftina
Error while loading owlready2 by Pradip
2
by Ulrich18
Using a SPARQL Processor/Engine for multiple queries by IWilliams
1
by Jiba
calling onto.object_properties giving error by Pradip
1
by Jiba
Creating data property dynamically by Jui Guram
1
by Jiba
How to import instances and its corresponding property values from database to an ontology by jui guram
6
by Jiba
owlready does not import all of the SSN and SOA classes? by Waseem85
16
by Jiba
Relating one class to another class by object properties or relations (equivalent of SWRL rules in Owlready) by rahul_raj
1
by Jiba
Can't find ObjectProperty instance when adding classes dynamically by Bob van 't Padje
1
by Bob van 't Padje
onto.individuals() looking for individuals in imported ontologies by gp
3
by Jiba
Using Blazegraph as database by Bob van 't Padje
1
by Jiba
Storing ontology in graph database by Bob van 't Padje
3
by Jiba
Error using API with Heroku by Frack
3
by Frack
The great table of formal ontology notations by Jiba
1
by rdk
Dynamically add restrictions after creation of class by ap
5
by supun
Possible issues and solutions for loading specific Owl file by wanghewen
4
by wanghewen
Owlready2 parsing error with sync_reasoner by tharindu_mp
2
by Jiba
ERROR: The system cannot find the owl file specified by yashodasw
4
by yashodasw
Importing and saving ontology files by Waseem85
12
by Waseem85
Is there any way to capture sync_reasoner() output to txt? by Tania
2
by Tania
owlready keep adding classes into the existing ontology while using load() by Waseem85
2
by Waseem85
EYE Reasoner + N3 by rdk
3
by Jiba
loading CIDOC CRM fails by sennierer
2
by sennierer
Adding value restrictions on data properties by Lindsay
2
by Lindsay
Adding properties to individual given its python instance (ie. of the property) by gp
3
by Jiba
searching classes by label in obi by gp
4
by gp
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