[Python] Why did it fail when trying to connect to a Neo4j database in Python using...

I wrote a simple Python script to connect to my Neo4j database instance and retrieve some data using the official Neo4j library. I am trying to run this script on PythonAnywhere, but it failed to connect to the database, printing "Unable to retrieve routing information." The URI, username, and password are correct; it successfully connects to the database from my desktop application written in Java. Here is the full script in Python:

from neo4j import GraphDatabase


URI = "neo4j+s://uri:7687"
AUTH = ("usn", "pwd")

class PlayersNeo4jDatabaseManager:
def __init__(self):
try:
self.driver = GraphDatabase.driver(URI, auth=AUTH)
except Exception as ex:
print(ex)

def close(self):
self.driver.close()

def get_players_query(self, tx):
query = "MATCH (player) RETURN p LIMIT 1;"
players = tx.run(query)
for player in players:
print(player)

def get_players(self):
with self.driver.session(database="neo4j") as session:
session.read_transaction(self.get_players_query)

playersNeo4jDatabaseManager = PlayersNeo4jDatabaseManager()
playersNeo4jDatabaseManager.get_players()


I tried neo4j://, neo4j+ssc, and bolt, but it did not work.

Continue reading...