python-dotenv for configuration management

Injects key-value pairs from .env files into os.environ to decouple configuration from code.

The python-dotenv package automates the population of environment variables from a local .env file into your process. Use the load_dotenv() function to handle sensitive credentials (such as DB_PASSWORD or AWS_SECRET_KEY) without risking exposure in version control. It supports variable expansion and overrides, making it essential for 12-factor app compliance. With over 15 million monthly downloads on PyPI, this library is the reliable choice for managing local development environments across diverse Python projects.

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