How to pass python variable to sparql query?

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import rdflib

# Create a graph
g = rdflib.Graph()

# Define the namespace
ns = rdflib.Namespace("http://example.org/")

# Define the variable in Python
name = "John"

# Format the SPARQL query with the variable
query = """
SELECT ?person
WHERE {{
    ?person a {ns}Person .
    ?person {ns}name "{name}" .
}}
""".format(ns=ns, name=name)

# Execute the query
results = g.query(query)

for row in results:
    print(row)