Store add_graph appears to do nothing with rdflib and Fuseki - fuseki

Question

I have a Fuseki endpoint and want to use the python rdflib library to add graphs to it.
I connect to the Fuseki server as follows:
import rdflib
from rdflib import Graph, Literal, URIRef
from rdflib.plugins.stores import sparqlstore
query_endpoint = 'http://localhost:3030/dsone/query'
update_endpoint = 'http://localhost:3030/dsone/update'
store = sparqlstore.SPARQLUpdateStore()
store.open((query_endpoint, update_endpoint))
Then I set-up an rdflib ConjunctiveGraph as follows:
g = rdflib.ConjunctiveGraph(identifier=URIRef("http://localhost/dsone/g3"))
g.parse(data="""
#base <http://example.com/base> .
#prefix : <#> .
<> a :document1 .
""", format='turtle', publicID = "http://example.com/g3")
g now contains one triple:
for r in g:
print(r)
Which results in:
(rdflib.term.URIRef('http://example.com/base'), rdflib.term.URIRef('http://www.w3.org/1999/02/22-rdf-syntax-ns#type'), rdflib.term.URIRef('http://example.com/base#document1'))
Now I add the graph to the store with:
store.add_graph(g)
The server shows a 200 return code. When I do the insert directly over REST, it returns 204 - which could be a clue.
Now there is nothing in the store.
for r in store.query("""
select ?g (count(*) as ?count) {graph ?g {?s ?p ?o .}} group by ?g
"""):
print(r)
Which has no output.
As far as I can tell store.add_graph(g) is doing nothing.
Any ideas?

Answer 1

store.add_graph(g)
Just created the graph itself, it won't take your graph content and put it in there. So add_graph() is really only just using the graph's identifier, not it's data.
Try calling add_graph() then adding data to the graph.