neo4j 4.0.0a4

Neo4j Bolt driver for Python

This repository contains the official Neo4j driver for Python. Each driver release (from 4.0 upwards) is built specifically to work with a corresponding Neo4j release, i.e. that with the same major.minor version number. These drivers will also be compatible with the previous Neo4j release, although new server features will not be available.

• Python 3.8 supported.

• Python 3.7 supported.

• Python 3.6 supported.

• Python 3.5 supported.

Python 2.7 support has been dropped as of the Neo4j 4.0 release.

Installation

To install the latest stable version, use:

pip install neo4j

Quick Example

from neo4j import GraphDatabase

driver = GraphDatabase.driver("bolt://localhost:7687", auth=("neo4j", "password"))

def add_friend(tx, name, friend_name):
    tx.run("MERGE (a:Person {name: $name}) "
           "MERGE (a)-[:KNOWS]->(friend:Person {name: $friend_name})",
           name=name, friend_name=friend_name)

def print_friends(tx, name):
    for record in tx.run("MATCH (a:Person)-[:KNOWS]->(friend) WHERE a.name = $name "
                         "RETURN friend.name ORDER BY friend.name", name=name):
        print(record["friend.name"])

with driver.session() as session:
    session.write_transaction(add_friend, "Arthur", "Guinevere")
    session.write_transaction(add_friend, "Arthur", "Lancelot")
    session.write_transaction(add_friend, "Arthur", "Merlin")
    session.read_transaction(print_friends, "Arthur")

driver.close()

Other Information

• Neo4j Manual

• Neo4j Quick Reference Card

• Example Project

• Driver Wiki (includes change logs)