RDFLib SPARQLstore

This is an RDFLib extension that provides an RDFLib Store around Ivan Herman et al.'s SPARQL service wrapper.

In essence, it allows a SPARQL 1.0 endpoint to behave as if it were a read-only RDFLib Store.

The extension also provides a read/write SPARQLUpdateStore, for use when the SPARQL endpoint supports SPARQL 1.1 update operations.

This extension has revived support for namespace bindings.

Install with:

$ pip install rdflib_sparqlstore

Basic usage is

1. instantiate an RDFLib ConjunctiveGraph with "SPARQLStore" as the first positional arg and then

2. opening a known SPARQL endpoint

e.g.

import rdflib
g = rdflib.ConjunctiveGraph('SPARQLStore')
g.open("http://dbpedia.org/sparql")

A SPARQLUpdateStore is also available, the example below shows how a graph of updates can be applied to an existing endpoint / store:

import rdflib
g = rdflib.ConjunctiveGraph('SPARQLUpdateStore')
g.open(("http://localhost:3030/dataset/sparql",
        "http://localhost:3030/dataset/update"))

If the store object is explicitly created with the context_aware keyword param set to False, then rdflib.Graph can be used:

import rdflib
import rdflib_sparqlstore

store = rdflib_sparqlstore.SPARQLStore("http://dbpedia.org/sparql",
                                       context_aware=False)
g =  rdflib.Graph(store)