py2neo cheat sheet

grab_complete_node.py

from py2neo import Graph, Node, Relationship

graph = Graph(
    host="alpha.graph.domain.co",
    auth=('neo4j', 'thePassword-butBetter')
)

url="https://py2neo.org/v4/database.html#py2neo.database.Graph.delete_all"
a = Node("Type", url=url)
graph.merge(a, "Website", "url")
graph.pull(a)
print(a)

kill_node.py

from py2neo import Graph, Node, Relationship

graph = Graph(
    host="alpha.graph.domain.co",
    auth=('neo4j', 'thePassword-butBetter')
)
badId=124464
# # how to delete a particular ID
 killme = graph.evaluate("MATCH (n) where id(n) = $badId RETURN n", badId=badId)
# # Delete node
graph.delete(killme)
# # this explodes if you give it None
	

nuke_graph.py

from py2neo import Graph, Node, Relationship

graph = Graph(
    host="alpha.graph.domain.co",
    auth=('neo4j', 'thePassword-butBetter')
)
graph.delete_all()

run_arbitrary_cypher.py

from py2neo import Graph, Node, Relationship

graph = Graph(
    host="alpha.graph.domain.co",
    auth=('neo4j', 'thePassword-butBetter')
)

# instead use an existing node with
a = Node("Type", url=url)
number = 2
count = graph.run(
            "MATCH(a) < -[r:CREATED]-(b) WHERE ID(a)=$spicyId AND b.number <= $number RETURN count(r)", 
            number=number, 
            spicyId=a.identity
        ).evaluate()