RuntimeError: Working outside of application context.

[kivanc57]

Whenever I try to set the Python driver as it's shown below. I follow the instructions that are shown in this link from the Python course. So it is pretty much like:

import os
from flask import Flask, current_app
from neo4j import GraphDatabase

NEO4J_URI=os.getenv('NEO4J_URI')
NEO4J_USERNAME=os.getenv('NEO4J_USERNAME')
NEO4J_PASSWORD=os.getenv('NEO4J_PASSWORD')

"""
Initiate the Neo4j Driver
"""
def init_driver(uri, username, password):
    # Create an instance of the driver
    current_app.driver = GraphDatabase.driver(uri, auth=(username, password))

    # Verify Connectivity
    current_app.driver.verify_connectivity()

    return current_app.driver

And this is the error when I testi it or execute it:

(venv) kivanc57@linuxmint:~/Desktop/neo4j_api$ pytest tests/01_connect_to_neo4j__test.py
ImportError while loading conftest '/home/kivanc57/Desktop/neo4j_api/tests/conftest.py'.
tests/conftest.py:7: in <module>
    from api import create_app
api/__init__.py:16: in <module>
    from .neo4j import init_driver
api/neo4j.py:44: in <module>
    init_driver(NEO4J_URI, NEO4J_USERNAME, NEO4J_PASSWORD)
api/neo4j.py:15: in init_driver
    current_app.driver = GraphDatabase.driver(uri, auth=(username, password))
venv/lib/python3.12/site-packages/werkzeug/local.py:316: in __get__
    obj = instance._get_current_object()  # type: ignore[misc]
venv/lib/python3.12/site-packages/werkzeug/local.py:513: in _get_current_object
    raise RuntimeError(unbound_message) from None
E   RuntimeError: Working outside of application context.
E
E   This typically means that you attempted to use functionality that needed
E   the current application. To solve this, set up an application context
E   with app.app_context(). See the documentation for more information.

I know that it is because of wrong applications of Flask but then the course's code is problematic if I really have to change the Flask code whereas it should stay constant so I do not want to change it.