get all properties from the ontology

[ahmad88me]

Currently, the following query is used

    PREFIX owl: <http://www.w3.org/2002/07/owl#>
    select ?a 
        where{
         {?a ?b owl:ObjectProperty} UNION
         {?a a rdf:Property } UNION
         {?a ?b owl:DatatypeProperty}
        }

however, not all properties are fetched with this query. I am looking for a query to fetch all properties

[dachafra]

and using an external lib such as https://pypi.org/project/Owlready2/?
I used it in the OWL2YARRRML parser and it works pretty well

[ahmad88me]

Thanks David, I will check it out