read_dotenv problem

[buran]

In the future it would be nice to include link to github repo - it helps a lot
https://github.com/levensailor/ciscoaxl/...xamples.py

.env file is used to provide application settings via Environmental variables.
python-dotenv reads that file and exports the provided settings as Environmental variables
then look at the examples.py

dotenv_path = os.path.join(os.path.dirname(__file__), '.env')
read_dotenv(dotenv_path)

cucm = os.getenv('cucm')
username = os.getenv('username')
password = os.getenv('password')
version = os.getenv('version')

as you can see, the scripts reads cucm, username, password and version from the environment variables.
check python-dotenv docs for specific instructions for .env file format

https://github.com/theskumar/python-dotenv