Everett - Configuration Library

Everett is a Python configuration library for applications, offering flexible configuration management from various sources including process environment variables, .env files, dictionaries, INI files, and YAML files. It aims to provide clear error messages and support for automated documentation of configuration. As of October 15, 2025, the project is deprecated. The current version is 3.5.0, with prior releases indicating an active development cycle before deprecation.