Python: Master the Art of Design Patterns

The MVC pattern in the real world

Our good old web application frameworks are based on the philosophies of MVC. Take the example of Django or Rails (Ruby): they structure their projects in the Model-View-Controller format except that it is represented as MTV (Model, Template, View) where the model is the database, templates are the views, and controllers are the views/routes.

As an example, let's take up the Tornado web application framework (http://www.tornadoweb.org/en/stable/) to develop a single-page app. This application is used to manage a user's tasks and the user has permissions to add tasks, update tasks, and delete tasks.

Let's see the design considerations:

• Let's start with the controllers first. In Tornado, controllers have been defined ...