Multiple 404 error pages using Python Flask

Publicado em: 24 Novembro 2023
no canal de: CodeSolve

Download this code from https://codegive.com
Creating custom 404 error pages in a Python Flask application is a useful way to enhance the user experience and provide a more personalized touch to error handling. In this tutorial, I'll guide you through the process of setting up multiple custom 404 error pages for different scenarios using Flask.
If you haven't installed Flask yet, you can do so using the following command:
Create a new file, let's call it app.py, and set up a basic Flask application:
In Flask, you can create custom error pages by decorating a function with @app.errorhandler(code), where code is the HTTP status code you want to handle. For a 404 error, you use 404.
Let's create custom error pages for different scenarios:
Now, create three HTML templates: 404_generic.html, 404_user.html, and 404_admin.html in a folder named templates:
templates/404_generic.html
templates/404_user.html
templates/404_admin.html
Run your Flask app using the following command:
Visit http://127.0.0.1:5000/ in your web browser. You should see the "Welcome to the Flask Custom 404 Error Pages Tutorial!" message.
Now, try accessing non-existent pages like /nonexistent, /nonexistent_user, and /nonexistent_admin. You should see the corresponding custom 404 error pages.
Congratulations! You've successfully implemented multiple custom 404 error pages in a Python Flask application. This approach can be extended to handle other HTTP status codes and create more customized error pages as needed.
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