pythonenvironment-variablespython-dotenv

What is the use of python-dotenv?


Need an example and please explain me the purpose of python-dotenv.
I am kind of confused with the documentation.


Solution

  • From the Github page:

    Reads the key,value pair from .env and adds them to environment variable. It is great of managing app settings during development and in production using 12-factor principles.

    Assuming you have created the .env file along-side your settings module.

    .
    ├── .env
    └── settings.py
    

    Add the following code to your settings.py:

    # settings.py
    import os
    from os.path import join, dirname
    from dotenv import load_dotenv
    
    dotenv_path = join(dirname(__file__), '.env')
    load_dotenv(dotenv_path)
    
    SECRET_KEY = os.environ.get("SECRET_KEY")
    DATABASE_PASSWORD = os.environ.get("DATABASE_PASSWORD")
    

    .env is a simple text file with each environment variable listed one per line, in the format of KEY="Value". The lines starting with # are ignored.

    SOME_VAR=someval
    # I am a comment and that is OK
    FOO="BAR"