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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 (862)
Replies Last Post Views
Dynamically add restrictions after creation of class by ap
5
Jun 24, 2018 by supun
741
Possible issues and solutions for loading specific Owl file by wanghewen
4
Jun 24, 2018 by wanghewen
346
Owlready2 parsing error with sync_reasoner by tharindu_mp
2
Jun 24, 2018 by Jiba
524
ERROR: The system cannot find the owl file specified by yashodasw
4
Jun 20, 2018 by yashodasw
621
Importing and saving ontology files by Waseem85
12
Jun 19, 2018 by Waseem85
1700
Is there any way to capture sync_reasoner() output to txt? by Tania
2
Jun 12, 2018 by Tania
184
owlready keep adding classes into the existing ontology while using load() by Waseem85
2
Jun 11, 2018 by Waseem85
247
EYE Reasoner + N3 by rdk
3
Jun 08, 2018 by Jiba
211
loading CIDOC CRM fails by sennierer
2
Jun 08, 2018 by sennierer
176
Adding value restrictions on data properties by Lindsay
2
Jun 05, 2018 by Lindsay
262
Adding properties to individual given its python instance (ie. of the property) by gp
3
May 18, 2018 by Jiba
585
searching classes by label in obi by gp
4
May 17, 2018 by gp
414
Owlready2 0.8 has been released! by Jiba
0
May 16, 2018 by Jiba
133
Dynamic Descriptive Logic Insertion by Sree
7
May 16, 2018 by Jiba
378
Getting the domains of the data properties by Ina
2
May 16, 2018 by Ina
267
How to access triples using Owlready2? by Anannya
1
May 10, 2018 by Jiba
503
Saving New Imported Ontologies by Lindsay
5
Apr 21, 2018 by Jiba
393
owl_inverse_property problem by ZhaoPengya2
3
Apr 19, 2018 by Jiba
435
sync_reasoner() interface to HermiT by lars
3
Apr 19, 2018 by Hermi
699
Can I Owlready2 pickable? by Damiano
2
Apr 18, 2018 by Damiano
336
Accessing the axioms (and axiom closure) of an ontology by Bijan Parsia
6
Apr 06, 2018 by bparsia
786
load() with coding problem by Lee
1
Mar 29, 2018 by Jiba
235
How do you define a chain of properties by William
2
Mar 25, 2018 by William
292
Object property assertion instead of Annotation assertion. by Christian
3
Mar 22, 2018 by Jiba
466
Error in docs example ‘reasoning-ready’ ontology by Enzo
1
Mar 18, 2018 by Jiba
360
Question on Property Restriction .value() and HermiT by Fabian
2
Mar 15, 2018 by Fabian
317
Adding classes using for loop by Ruch
1
Mar 11, 2018 by Jiba
303
can't mix python and owl by ZhangYu
3
Mar 11, 2018 by Jiba
391
Reasoning TypeError: a __bases__ item causes an inheritance cycle by rdk
4
Mar 06, 2018 by rdk
650
assign a weight to a ObjectProperty beetween two individuals by Christian
1
Mar 05, 2018 by Jiba
206
Protégé not showing Properties of entities by rdk
2
Mar 04, 2018 by rdk
285
Reasoning ERROR - Either a suitable parser could not be found, or parsing failed by rdk
3
Mar 04, 2018 by rdk
388
Introspection with owlready2 by Pierre
4
Mar 01, 2018 by Pierre
349
ValueError: Cannot read literal od datatype 'x'! by Dumas Anthony
2
Feb 27, 2018 by Dumas Anthony
382
Accessing inferences and asserstions rather than just assertions by tyler
10
Feb 11, 2018 by Jiba
1160
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