On 23/11/2024 20:32, Hugo Bártolo wrote:
Error: Query processing error: <urlopen error unknown url type: '<http>
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Hi from Portugal 🙂
i am having some problems using a jupyter notebook to query a fuseki localhost,
can you help me?
#!pip install sparqlkernel
#jupyter sparqlkernel install
#%lsmagics
# define the endpoint
%endpoint '<http://localhost:3030/#/dataset/Trabalho/sparql>'
Looking at the documentation example is
%endpoint http://dbpedia.org/sparql
it is written without the <>
URLs are often written as <something> as illustration but the <> are not
part of the URL.
# Don't show more than 80 results (event if more are fetched)
%show 80
# Request whatever format is appropriate for the query type
%format default
# Activate table output
%display table withtypes
%prefix rdf <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
%prefix owl <http://www.w3.org/2002/07/owl#>
%prefix rdfs <http://www.w3.org/2000/01/rdf-schema#>
%prefix xsd <http://www.w3.org/2001/XMLSchema#>
%prefix dev <http://www.semanticweb.org/hugob/ontologies/2024/10/devedores#>
SELECT * WHERE {
?sub ?pred ?obj .
} limit 10
Error: Query processing error: <urlopen error unknown url type: '<http>
Presumably the Fuseki server log does not show any requests?
That message suggests the issue is in the client, not the server.
