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gremlinpython_vertex_creation_and_graph_traversal_quickstart.py

python

Connects to a Gremlin Server, adds a vertex with properties, and traverses

15d ago26 linestinkerpop.apache.org
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gremlinpython_vertex_creation_and_graph_traversal_quickstart.py
1from gremlin_python.driver.driver_remote_connection import DriverRemoteConnection
2from gremlin_python.process.anonymous_traversal import traversal
3from gremlin_python.process.graph_traversal import __
4from gremlin_python.process.traversal import T
5
6# Create a connection to a local Gremlin Server
7connection = DriverRemoteConnection('ws://localhost:8182/gremlin', 'g')
8
9# The traversal source (g) is used to interact with the graph
10g = traversal().withRemote(connection)
11
12# Add a vertex and some properties
13v1 = g.addV('person').property('name', 'marko').property('age', 29).next()
14
15# Run a simple traversal: find the name of the person we just added
16name = g.V(v1).values('name').next()
17print(f"Added vertex with name: {name}")
18
19# Example of a more complex traversal
20# Find all people who are older than 20
21people = g.V().hasLabel('person').has('age', __.gt(20)).valueMap().toList()
22for person in people:
23    print(person)
24
25# Connection must be closed to release resources
26connection.close()