Sergio,
It was luckely just a user error. Apperently content negotiation is
required:
sparql.setOnlyConneg(True)
did the trick.
So this code works fine to query and construct results from a local
Topbraid EDG server:
endpoint = "http://localhost:8083/tbl/sparql";
query = """SELECT ?prop ?datatype
WHERE {
<http://example.org/ontologies/assetonto#Object>
sh:property ?prop .
OPTIONAL {
?prop sh:datatype ?datatype .
}
}"""
sparql = SPARQLWrapper(endpoint)
sparql.setQuery(query)
sparql.addDefaultGraph("urn:x-evn-master:assetonto")
sparql.setOnlyConneg(True)
sparql.setReturnFormat(CSV)
result = sparql.query().convert()
kind regards,
Richard
On Monday, July 6, 2020 at 5:44:24 PM UTC+2, Sergio Fernández wrote:
>
> Please, report the details if the issue to GitHub, and we'll try to
> troubleshoot it.
>
> On Mon., Jul. 6, 2020, 08:32 Richard Dijkstra <[email protected]
> <javascript:>> wrote:
>
>> I am not able to go to too much detail because my lack of knowledge of
>> proper requests etc
>> But interesting might be that the Python library sparql-client queries
>> the endpoint with no issues.
>>
>> However I want to use SPARQLwrapper because it has more features.
>>
>>
>> On Friday, July 3, 2020 at 4:00:33 PM UTC+2, Richard Dijkstra wrote:
>>>
>>> Thank you Wes for the tips for further investigations. I will give it a
>>> try next week.
>>>
>>> Regards,
>>> Ruchard
>>>
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