neo4j

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Neo4j Bolt Driver for Python

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This repository contains the official Neo4j driver for Python.

Starting with 5.0, the Neo4j Drivers will be moving to a monthly release cadence. A minor version will be released on the last Friday of each month so as to maintain versioning consistency with the core product (Neo4j DBMS) which has also moved to a monthly cadence.

As a policy, patch versions will not be released except on rare occasions. Bug fixes and updates will go into the latest minor version and users should upgrade to that. Driver upgrades within a major version will never contain breaking API changes.

See also: https://neo4j.com/developer/kb/neo4j-supported-versions/

• Python 3.13 supported (since driver version 5.26.0).
• Python 3.12 supported (since driver version 5.14.0).
• Python 3.11 supported (since driver version 5.3.0).
• Python 3.10 supported.
• Python 3.9 supported.
• Python 3.8 supported.
• Python 3.7 supported.

Installation

To install the latest stable version, use:

.. code:: bash

pip install neo4j

.. TODO: 7.0 - remove this note

.. note::

``neo4j-driver`` is the old name for this package. It is now deprecated and
and will receive no further updates starting with 6.0.0. Make sure to
install ``neo4j`` as shown above.

Alternative Installation for Better Performance

You may want to have a look at the available Rust extensions for this driver for better performance. The Rust extensions are not installed by default. For more information, see neo4j-rust-ext_.

.. _neo4j-rust-ext: https://github.com/neo4j/neo4j-python-driver-rust-ext

Quick Example

.. code-block:: python

from neo4j import GraphDatabase, RoutingControl


URI = "neo4j://localhost:7687"
AUTH = ("neo4j", "password")


def add_friend(driver, name, friend_name):
    driver.execute_query(
        "MERGE (a:Person {name: $name}) "
        "MERGE (friend:Person {name: $friend_name}) "
        "MERGE (a)-[:KNOWS]->(friend)",
        name=name, friend_name=friend_name, database_="neo4j",
    )


def print_friends(driver, name):
    records, _, _ = driver.execute_query(
        "MATCH (a:Person)-[:KNOWS]->(friend) WHERE a.name = $name "
        "RETURN friend.name ORDER BY friend.name",
        name=name, database_="neo4j", routing_=RoutingControl.READ,
    )
    for record in records:
        print(record["friend.name"])


with GraphDatabase.driver(URI, auth=AUTH) as driver:
    add_friend(driver, "Arthur", "Guinevere")
    add_friend(driver, "Arthur", "Lancelot")
    add_friend(driver, "Arthur", "Merlin")
    print_friends(driver, "Arthur")

Further Information

• The Neo4j Operations Manual_ (docs on how to run a Neo4j server)
• The Neo4j Python Driver Manual_ (good introduction to this driver)
• Python Driver API Documentation_ (full API documentation for this driver)
• Neo4j Cypher Cheat Sheet_ (summary of Cypher syntax - Neo4j's graph query language)
• Example Project_ (small web application using this driver)
• GraphAcademy_ (interactive, free online trainings for Neo4j)
• Driver Wiki_ (includes change logs)
• Neo4j Migration Guide_

.. _The Neo4j Operations Manual: https://neo4j.com/docs/operations-manual/current/ .. _The Neo4j Python Driver Manual: https://neo4j.com/docs/python-manual/current/ .. _Python Driver API Documentation: https://neo4j.com/docs/api/python-driver/current/ .. _Neo4j Cypher Cheat Sheet: https://neo4j.com/docs/cypher-cheat-sheet/ .. _Example Project: https://github.com/neo4j-examples/movies-python-bolt .. _GraphAcademy: https://graphacademy.neo4j.com/categories/python/ .. _Driver Wiki: https://github.com/neo4j/neo4j-python-driver/wiki .. _Neo4j Migration Guide: https://neo4j.com/docs/migration-guide/current/