Config.py -

The config.py file is a staple in Python development, serving as a dedicated hub to decouple your application logic from its settings. Keeping hard-coded values like API keys or database URLs out of your main code makes your projects more . Why Use a config.py ?

: You can easily swap between Development , Testing , and Production settings without rewriting core functions. Popular Modern Patterns config.py

Flask often uses classes to manage environments. You can create a base config and override it for specific environments. The config

The most straightforward approach is defining variables directly in a .py file and importing them. : You can easily swap between Development ,

: Strong typing prevents runtime crashes from bad config.

: By keeping sensitive credentials in a config.py (and adding it to your .gitignore ), you prevent accidentally leaking secrets to public repositories.