Python Dotenv

Loads key-value pairs from .env files into os.environ for clean, environment-based configuration.

Saurabh Kumar created python-dotenv to automate the injection of configuration variables into Python applications. Call the load_dotenv() function to populate os.environ with values defined in a local .env file (avoiding hardcoded secrets). This library supports advanced features like variable expansion and multiline strings, boasting over 7,500 GitHub stars and widespread adoption in the Django and Flask communities. It ensures your development environment mirrors production settings by keeping sensitive credentials out of version control.

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