Print out misc. info about the system, and test the connection to the Neo4j database¶

You will be prompted for your database credentials

In [1]:

import set_path      # Importing this module will add the project's home directory to sys.path

Added 'D:\Docs\- MY CODE (Win11)\Brain Annex\BA develop' to sys.path

In [2]:

import os
import sys
import getpass

from brainannex import GraphAccess

In [3]:

print("***  SOME DIAGNOSTIC VALUES:  ***")

print("\nsys.executable: ", sys.executable)

print("\ncwd: ", os.getcwd())

#print("\nsys.path: ", sys.path)

print("\nsys.path using separate lines: ")
for p in sys.path:
    print("    ", p)

***  SOME DIAGNOSTIC VALUES:  ***

sys.executable:  D:\Docs\- MY CODE (Win11)\Brain Annex\BA develop\venv\Scripts\python.exe

cwd:  D:\Docs\- MY CODE (Win11)\Brain Annex\BA develop\notebooks

sys.path using separate lines: 
     D:\Docs\- MY CODE (Win11)\Brain Annex
     C:\Program Files\Python311\python311.zip
     C:\Program Files\Python311\DLLs
     C:\Program Files\Python311\Lib
     C:\Program Files\Python311
     D:\Docs\- MY CODE (Win11)\Brain Annex\BA develop\venv
     
     D:\Docs\- MY CODE (Win11)\Brain Annex\BA develop\venv\Lib\site-packages
     D:\Docs\- MY CODE (Win11)\Brain Annex\BA develop

Connect to the database¶

You can use a free local install of the Neo4j database, or a remote one on a virtual machine under your control, or a hosted solution, or simply the FREE "Sandbox" : instructions here ¶

NOTE: This tutorial is tested on version 4 of the Neo4j database, but will probably also work on the new version 5# Connect to the database

In [4]:

# Save your credentials here - or use the prompts given by the next cell
host = "neo4j://localhost"             # EXAMPLES:  bolt://123.456.789.012   OR   neo4j://localhost
password = ""

In [5]:

print("To create a database connection, enter the host IP, but leave out the port number: (EXAMPLES:  bolt://123.456.789.012  OR  neo4j://localhost )\n")

host = input("Enter host IP WITHOUT the port number.  EXAMPLE: bolt://123.456.789.012 ")
host += ":7687"    # EXAMPLE of host value:  "bolt://123.456.789.012:7687"

password = getpass.getpass("Enter the database password:")

print(f"\n=> Will be using: host='{host}', username='neo4j', password=**********")

To create a database connection, enter the host IP, but leave out the port number: (EXAMPLES:  bolt://123.456.789.012  OR  neo4j://localhost )

=> Will be using: host='bolt://123.456.789.012:7687', username='neo4j', password=**********

In [5]:

db = GraphAccess(host=host,
               credentials=("neo4j", password), debug=False)   # Notice the debug option being OFF

Connection to Neo4j database established.

In [6]:

print("Version of the Neo4j driver: ", db.version())

Version of the Neo4j driver:  4.4.13

In [ ]:

Print out misc. info about the system, and test the connection to the Neo4j database¶

Connect to the database¶

You can use a free local install of the Neo4j database, or a remote one on a virtual machine under your control, or a hosted solution, or simply the FREE "Sandbox" : instructions here¶

You can use a free local install of the Neo4j database, or a remote one on a virtual machine under your control, or a hosted solution, or simply the FREE "Sandbox" : instructions here ¶