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Table of contents
1.
Introduction
2.
About Flask
3.
Features of Flask
4.
FAQs
5.
Key Takeaways
Last Updated: Mar 27, 2024

Flask Introduction And Overview

Author Rajat Agrawal
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Introduction

If you are already familiar with the Python programming language and want to get started with Web Application Development. In that case, Python provides some of the famous web frameworks like DjangoFlaskFalcon, etc., to help you in your development journey.

Flask is one of the most popular microframeworks of Python for creating Web Applications.

Flask’s framework is more explicit than other Python frameworks and easier to learn because it has significantly less base code to implement a simple Web-Application.

Let’s learn about the basics of the Flask framework.

About Flask

Flask is Python's web application framework. It was developed by Armin Ronacher. It is a framework with a built-in dev server and a debugger. 

Flask’s framework is more explicit than other Python frameworks and easier to learn because it has significantly less base code to implement a simple Web-Application. 

Flask is based on the Werkzeug WSGI(Web Server Gateway Interface) toolkit and Jinja2 template engine. 

Let’s get familiar with some basic terminologies:

WSGI: WSGI stands for Web Server Gateway Interface. It is a standard for Python web application development. WSGI is a specification for an interface between the web server and the web applications.

Werkzeug: It is a WSGI toolkit that implements requests, response objects, and other utility functions. Flask framework uses it as one of its bases.

Jinja2: It is a popular templating engine for Python. A web templating system combines a template with a particular data source to render dynamic web pages.

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Features of Flask

The most common features of the Flask are:-

1.) Flask is often called a micro framework. The word “micro” in microframework means Flask aims to keep the core extensible yet straightforward.

2.) Flask’s framework is more explicit than other Python frameworks and easier to learn because it has significantly less base code to implement a simple Web-Application.

3.) It is a framework with a built-in dev server and a debugger.

4.) Flask does not have any built-in abstraction layer for database handling or form validation. Instead, Flask provides the extensions support to add such functionality to the application.

5.) Flask has many configuration values, sensible defaults, and a few conventions when getting started. 

6.) Once you set Flask up and running, you’ll find a variety of extensions available in the community to integrate your project for production.

Recommended Topic, PHP For Loop

FAQs

  1. What does microframework mean?
    The word "micro" in the micro-framework means that Flask aims to keep the core extensible yet straightforward. Flask doesn't make many decisions for you, like which database to use. These decisions it makes, such as what templating engine to use, can be changed easily. Flask is everything you need, nothing else you need because everything else is up to you.
     
  2. Flask is based on which template engine?
    Flask is based on the Jinja2 template engine. Jinja2 is a famous templating engine for Python. A web templating system combines a template with a particular data source to render dynamic web pages.
     
  3. What is WSGI?
    WSGI stands for Web Server Gateway Interface. It is a standard for Python web application development. WSGI is a specification for an interface between the web server and the web applications.

Key Takeaways

In this blog, we have learned about the basics of the Flask framework, the uses of the Flask framework, and different Flask features.

If you want to read more exciting web development blogs, you can visit Coding Ninjas Web Blogs.

Happy Learning!!

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