E-Books →Flask Framework Cookbook: Building Web Applications with Flask , 2nd Edition

Flask is a web development framework developed in Python. It is easy to learn and use. Flask is "beginner-friendly" because it does not have boilerplate code or dependencies, which can distract from the primary function of an application. Flask originated in 2004 when a developer named Armin Ronacher created it as an April Fool's joke. However, it quickly gained popularity in the open-source community anyway. Consequently, it developed into a popular open-source project and gained a massive following, which it maintains today. Some features which make Flask an ideal framework for web application development are:
Flask provides a development server and a debugger.
It uses Jinja2 templates.
It is compliant with WSGI 1.0.
It provides integrated support for unit testing.
Many extensions are available for Flask, which can be used to enhance its functionalities.