Every application throws errors to users at some point in time. These errors can be due to the user typing a non-existent URL (404), application overload (500), or something forbidden for a certain user to access (403). A good application handles these errors in a user-interactive way instead of showing an ugly white page, which makes no sense to most users. Flask provides an easy-to-use decorator to handle these errors. In this recipe, we will understand how we can leverage this decorator.
Creating custom 404 and 500 handlers
Getting ready
The Flask app object has a method called errorhandler(), which enables us to handle our application's errors in a much more beautiful and efficient manner.