blob: 4236ce37dcc5ad8d288f50d705e14d3e5a710554 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
"""
SPARQL Update statements can be applied with :meth:`rdflib.graph.Graph.update`
"""
import rdflib
if __name__ == "__main__":
g = rdflib.Graph()
g.parse("foaf.n3", format="n3")
print(f"Initially there are {len(g)} triples in the graph")
g.update(
"""
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX dbpedia: <http://dbpedia.org/resource/>
INSERT {
?s a dbpedia:Human .
}
WHERE {
?s a foaf:Person .
}
"""
)
print(f"After the UPDATE, there are {len(g)} triples in the graph")
|
