Full stack Web Development

Django vs Flask

Django and Flask are the most famous web frameworks in Python. Initially  Flask moved Django to take the top position as the web development industry has been moving toward smaller frameworks, serverless and microservices  platforms over the past few years. These two frameworks have mature communities, are extensively supported, and give dynamic access for web and application development. 

In this blog, we’ll cover some major differences between  Django and Flask along with what makes them unique.


Flask is a web application framework. It is derived to make a quick start and easy to use, with the ability of scalability and running complex applications. It started as a simple and has become the most famous Python framework for web application. The installation can be easily done by using pip. Let’s set up pip , 

Pip Install command

Run the following command to install flask:

and you may not need the version of Python 3 or the –user flag in the command below.

pip3 install flask –user

Now  create a file in Python named flaskhello.py and embed the following code:

from flask import Flask
app = Flask(_name_)
def hello():
 return "Hello, Acadgild!"  
if __name__ == "_main_":


Django is a high-level Python Web framework that executes quick development and pragmatic design.  It is a web application framework and    It is maintained by the Django Software Foundation (DSF) with a “batteries-included” logic. The idea behind batteries-included is that the typical functionality for building web applications should come up with the framework rather than  different libraries. Django installation also can be easily done by using pip.

Run the following command to install django:

pip3 install django --user

Also We need to set up the django-admin, which we are going to use. 

 Run the following code:

 django-admin startproject hellodjango

The above line of code will create a new Django “project,” and it will develop the hellodjango directory in the location where you executed the code. manage.py file and a subdirectory which is also called hellodjango  which you look in the hellodjango directory . We are using urls.py for our “Hello World” project.

Now we need to execute  Django scripts for starting up with a project  to create an app.

from django.http import HttpResponse

def index(request):

return HttpResponse(“Hello, AcadGild!”)

Now let’s create a file urls.py for web application.

Create helloAcadGild/urls.py. 

from django.conf.urls import url
from . import views
urlpatterns = [
    url(r'^$', views.index, name='index'), 


In this section we are going to do a quick comparison!

 The Main contrasts between flask and django. 

  • Flask ‘is known for its flexibility, simplicity, and fine-grained control. it allows you to choose how you will execute things.
  • While Django gives a broad experience: like  you will get an ORM, database interfaces, admin panel, and directory structure for your web apps and projects.

What to choose:

  • Django, if you’re concentrating on the final product. Especially when you’re implementing on a straight-forward web application such as an estore, news  website, and you want there to always be a simple, clear way of executing scripts.
  • Flask, if you want to  learn to and experience opportunities, or if you want to choose which databases should be used and how you want to combine with them.
  • On the other hand Django has been there for a long time,  released in 2005, while Flask came into the picture in 2010 and is more trendy.
  • Recently  there were around 2600 StackOverflow queries about Django and around 500 queries for Flask. Both frameworks are growing regularly and getting into trend, as we can see the popularity graph by stackoverflow in the graph below. 


Django provides powerful Object Relational Mapping i.e; ORM  which supports a many number of relational database systems like  MySQL,PostgreSQL, Oracle, and SQLite. The ORM gives simple implementation for creating and management of database migrations. Forms, views, and templates based on the data models can be easily created, which is perfect enough for your typical  web application. While it has very few drawbacks , it is also good for the many web applications.

On the other hand, Flask doesn’t inference about how data is stored, but there are Numbers of extensions and libraries are available to overcome that.

Routing and Views

Both  Django and flask frameworks let on to map URLs to  class-based views and views and support functions.


When the URL pattern matches  a request object, which detain the HTTP request information, it goes through to a view and that view is then put into effect. Whenever a user wants access to the request object, he/she must specifically pass it over.


Flask provides URL routing and response/request handling at its core by using Werkzeug.

Flask, It has a global request object, so a user can easily access it as long as a user imports it. The view with a decorator generally defines URLs along it, however a centralized location similar to the Django pattern and  it can be separated.


As discussed above, Django has in-built security against a number of frequent attack vectors like SQL injection, XSS, and CSRF. while Flask, has a much lesser code base so there’s small surface areas that are open to attack.

Flask is relying on third-party extensions, web applications will be as secure only on the least-secure extension. This brings much burden on your development team to keep security by monitoring and evaluating third-party extensions and libraries. Keeping them up-to-date is the most critical and often the extensive  thing, since each and every extension has their own development team,release cycles and documentation. In a lot of cases, there might only be one more developer controlling a distinct extension. Checking out one extension over another to review GitHub issues to see how long it commonly takes to respond to critical issues for maintainers.

 Django in-built security is not more secure than Flask; it is easier to secure simple and maintain along the life cycle of your web-application.


In the end, both the frameworks are widely used to develop web applications.

Django is a huge framework than Flask. 

If you’re learning web programming, and trying to figure out which one to choose, it can be difficult to conclude which framework is responsible for what purpose and functionality, However, once you started working with Django, the additional work it does can be actually good and can save you time in setting up repetitive task, boring units of a web application.

sometimes it’s hard to pick between the two frameworks the best thing is even though when you drag into both frameworks more leading functionality, like templates, the two remain very similar in many aspects. So many companies job  advertisements ask for “Django or Flask experience” in their description.  . Therefore it is easy to switch from one framework to the other framework.

Suggested Reading: 

Keep visiting our site www.acadgild.com for more updates on Data Analytics and other technologies. Click here to learn data science course in Bangalore.

Badal Kumar

Data Analyst at Aeon Learning

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