success 75591 simplesparql 2008-12-19T21:07:34Z 2008-12-19T21:07:34Z SimpleSPARQL allows queries to SPARQL endpoints in a very simple language similar to MQL. The query language is designed specifically for python and uses python dictionaries in the same way as MQL. Example Code: >>> from SimpleSPARQL import SimpleSPARQL >>> sparql = SimpleSPARQL("http://dbpedia.org/sparql") >>> n = sparql.n >>> n.bind('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#') >>> n.bind('rdfs', 'http://www.w3.org/2000/01/rdf-schema#') >>> n.bind('dbpedia2', 'http://dbpedia.org/property/') >>> # the area in Km^2 of things labeled England >>> print sparql.quickread({ >>> n.rdfs.label : u"England", >>> n.dbpedia2.areaKm : None >>> })[0] 130395 >>> # The Prime Minister of England's types >>> q = { >>> n.rdfs.label : u"England", >>> n.dbpedia2.primeMinister : { >>> n.rdf.type : None >>> } >>> } >>> for type in sparql.quickread(q) : >>> print type http://xmlns.com/foaf/0.1/Person http://dbpedia.org/class/yago/PrimeMinistersOfTheUnitedKingdom http://dbpedia.org/class/yago/ChancellorsOfTheExchequerOfTheUnitedKingdom http://dbpedia.org/class/yago/LeadersOfTheBritishLabourParty http://dbpedia.org/class/yago/AcademicsOfTheUniversityOfEdinburgh http://dbpedia.org/class/yago/RectorsOfTheUniversityOfEdinburgh http://dbpedia.org/class/yago/PeopleFromGlasgow http://dbpedia.org/class/yago/AcademicsOfTheOpenUniversity ... >>> for obj in sparql.read(q) : >>> print obj { rdflib.URIRef('http://dbpedia.org/property/primeMinister'):{ rdflib.URIRef('http://www.w3.org/1999/02/22-rdf-syntax-ns#type'): u'http://dbpedia.org/ontology/OfficeHolder#Class' }, rdflib.URIRef('http://www.w3.org/2000/01/rdf-schema#label'): u'England' } { rdflib.URIRef('http://dbpedia.org/property/primeMinister'):{ rdflib.URIRef('http://www.w3.org/1999/02/22-rdf-syntax-ns#type'): u'http://dbpedia.org/ontology/OfficeHolder#Class' }, rdflib.URIRef('http://www.w3.org/2000/01/rdf-schema#label'): u'England' } { rdflib.URIRef('http://dbpedia.org/property/primeMinister'):{ rdflib.URIRef('http://www.w3.org/1999/02/22-rdf-syntax-ns#type'): u'http://dbpedia.org/ontology/OfficeHolder#Class' }, rdflib.URIRef('http://www.w3.org/2000/01/rdf-schema#label'): u'England' } ... >>> print sparql.ask({ n.rdfs.label : u"England", n.dbpedia2.primeMinister : { n.rdfs.label : u"Tony Blair" } }) False >>> # and if you could do writes to dbpedia: >>> obj = { >>> n.rdfs.label : "Hello World", >>> n.sparql.create : n.sparql.unless_exists >>> } >>> sparql.write(obj) http://code.google.com/p/simplesparql simplesparql 0 0 gpl3_or_later GNU General Public License 3 or later