Python best way to import environment variables for development and production

config.py

"""
Written by Arsham Arya
I'm not sure it's the best way,
So any contribution makes everyone happy!
"""

from os import environ
# pip install python-dotenv
from dotenv import dotenv_values

config = {
    **dotenv_values(".env"),  # load shared development variables
    **environ,  # override loaded values with environment variables
}

def get_config(name, default_value=None):
    return config.get(name, default_value)

# ***** #
# Then, you can import this function into your files and use it like this.
get_config("SOME_SECRET_KEY", "SHKDGFLRwpG-default_secret_key")