flask:tldr:b5727

The command flask shell is used in the Flask framework to start an interactive Python shell with an application context.

When you run this command in the terminal, Flask sets up an environment where you can execute Python commands interactively, just like the regular Python shell but with the advantage of already having your Flask application loaded.

By having the application context initialized, you can access and interact with the application's models, database, and other components. This allows you to perform tests, debug code, or perform administrative tasks easily within the context of your Flask application.

The Flask shell is particularly useful for performing more complex operations or exploring the behavior of your application's code inside a familiar Python environment.