Flask vs Django

Flask vs Django

According to the&nbsp;<a href="https://www.jetbrains.com/research/python-developers-survey-2018/" target="_blank">2018 Python Developers Survey</a>, Flask and Django are, by far, the most popular web frameworks for Python developers. You’ll hardly go wrong with either framework if you’re deciding which one to use for a new web application. While it’s up to you to figure out which one works best for what you’re trying to accomplish, there’s a few major differences you should be aware of when making the decision. Regardless of which framework you end up using, both are very well documented and widely used, so they have ample active and supportive communities. So, without further ado, let’s take a look at what each framework offers and highlight some of their differences and similarities.

Flask or Django?

According to the 2018 Python Developers Survey, Flask and Django are, by far, the most popular web frameworks for Python developers. You’ll hardly go wrong with either framework if you’re deciding which one to use for a new web application. While it’s up to you to figure out which one works best for what you’re trying to accomplish, there’s a few major differences you should be aware of when making the decision. Regardless of which framework you end up using, both are very well documented and widely used, so they have ample active and supportive communities. So, without further ado, let’s take a look at what each framework offers and highlight some of their differences and similarities.


TL;DR Flask vs Django Differences

Flask and Django are mature, extensible web frameworks that, at their core, offer similar functionality in handling requests and serving up documents, but differ in their scope of responsibility. Most of the differences between the 2 frameworks stem from this different approach although some also stem from some different core design decisions. Here is a short list of key differences that might impact your decision:

  • The Request Object - Flask uses thread-locals while Django passes the request around where it’s needed.
  • Forms - Django comes with them built-in and they integrate with the ORM and the admin site. Flask has no default support for forms, but you can use WTForms to fill the gap.
  • The Database - Django comes with the Django ORM and a migration system that wants to manage your database. Flask makes no assumptions about a database, but there are tools out there, like SQLAlchemy that provide similar functionality (perhaps more).
  • Authentication & Permissions - Django comes with an authentication app that gives a default implementation for user management and permissions. Flask provides secure cookies as a tool for your own implementation.
  • Admin Site - Django comes with a fully integrated admin interface for managing application data. Flask doesn’t come with anything like it, but Flask-Admin is a popular extension that can be used to create a similar admin tool.


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Python Django Tutorial | Django Course

Python Django Tutorial | Django Course

🔥Intellipaat Django course: https://intellipaat.com/python-django-training/ 👉This Python Django tutorial will help you learn what is django web development &...

This Python Django tutorial will help you learn what is django web development & application, what is django and introduction to django framework, how to install django and start programming, how to create a django project and how to build django app. There is a short django project as well to master this python django framework.

Why should you watch this Django tutorial?

You can learn Django much faster than any other programming language and this Django tutorial helps you do just that. Our Django tutorial has been created with extensive inputs from the industry so that you can learn Django and apply it for real world scenarios.

Django vs Flask - choosing the best python framework

Django vs Flask - choosing the best python framework

In this article, Django vs. Flask – Choosing the Best Python Framework, we will describe the significant aspect of these frameworks and choose the best framework that’s perfect for you. So let’s discuss these frameworks.

In this article, Django vs. Flask – Choosing the Best Python Framework, we will describe the significant aspect of these frameworks and choose the best framework that’s perfect for you. So let’s discuss these frameworks.

Introduction to Django

Django is a high-level Python framework that encourages the perfection of your project’s design.

It’s free and open source web application framework developed by professional developers.

Django is fast, secure, exceedingly scalable, and incredibly versatile.

Django was explicitly created for simplifying the creation of complex projects. It facilitates low coupling, less coding, and the natural use of the make-up component.

Pros of Django

  • The Django framework has an MVC architecture comprising of an object-relational mapper (ORM) that moves data models and a relational database, a system processing HTTP requests, and a regular-expression-based URL dispatcher.
  • It’s a light weighted framework with a standalone server for the development and testing of applications.
  • It has a caching framework that uses any cache methods.
  • Django supports four database backend like PostgreSQL, Oracle, MySQL, and SQLite.
  • Django has a growing community of developers, with conferences held every year in different countries.
  • It’s been used in some well-known sites like Instagram, Udemy, Spotify, andmore.

Introduction to Flask

Flask is a web framework written in Python. It has good syntax that’s easy to understand.

Its built-in technology is easy to understand; this makes it easy for beginners to get started with.

Flask focuses on users request and the responses to deliver back to its user.

It doesn’t require a particular tool or libraries; no database abstraction layer except third party libraries which are imported to provide common functions.

Pros of Flask

  • Flask contains a development server and a debugger.
  • It produces extensive documentation of projects.
  • Flask offers extensions available to enhance features desired. It is Unicode based, with fully integrated support for unit testing.
  • Flask is based on two micro frameworks a utility library for Python programming called Werkzeug, and a template engine called Jinja.
  • It’s used by popular websites such as LinkedIn, Pinterest, and more.
Why use Django?

Django has a fast growing community. It has over eighty thousand questions on stack overflow and also set of quality blogs from several developers.

Encountering a problem while coding wouldn’t be an issue as answers to the most challenging issues are already available on the internet.

We would try to differentiate between Django and Flask in attempting to add data into a database

Using a ModelForm in Django, the data will be automatically inserted into the form. Here we will try to create a structure in which a user creates a post. This post form will take in 2 values, the title of the post and the content of the post.

So the first thing we have to do is create our database. We will call our database, Post. It will only have two fields: title and content.

#models.py File

from django.db import models

class Post(models.Model):

title= models.CharField(max_length=300, unique=True)

content= models.TextField()

This is a primary database. We have a title and a content field. Now we’ll create our template file named createpost.html we are going to have the form where a user can submit a post. This is a simple form that only contains two fields: title and content.

<head>

<title>Create a Post </title>

</head>

 
<body>

<h1>Create a Post </h1>

<form action="" method="POST">

{% csrf_token %}

Title: <input type="text" name="title"/><br/>

Content: <br/>

<textarea cols="35" rows="8" name="content">

</textarea><br/>

<input type="submit" value="Post"/>

</form>

</body>

 
</html>

We need a name attribute with each form field because this is how we will extract the data that the user enters into the area.

Lastly, we have our views.py file. In this file, we will take the data that the user has entered into the form fields and insert the data into a database. The following code in the views.py file does this.


from django.shortcuts import render

from .models import Post

 
 
def createpost(request):

if request.method == 'REVIEW':

if request.REVIEW.get('title') and request.REVIEW.get('content'):

review=Review()

post.title= request.REVIEW.get('title')
post.content= request.REVIEW.get('content')
post.save()
 
return render(request, 'posts/create.html')
 
else:

return render(request,'posts/create.html')

This is how data is inserted into a database from an HTML form in Django.

Using Django will reduce your expenses in developing applications because it doesn’t require massive tool and libraries compared to Flask. Its database system can be applied widely to produce complex projects.

Why use Flask?

Flask has a smaller community compared to Django. It uses a variety of libraries for building a complex project, but its best suited for a smaller project. Flask has a flexible framework. Flask’s Hello World app has to be the simplest out there, having just seven lines of code.


from flask import Flask
app = Flask(__name__)
 

@app.route("/") # take note of this decorator syntax, it's a common pattern

def hello():

return "Hello World!"
 
if __name__ == "__main__":

app.run()

The following code will display “Hello world.”

Most of its functionality is extremely extensible. It’s Modular and has a light weighted design. Its framework provides HTTP request handling. Its API is coherent and easy to deploy during production.

Conclusion

Django makes it easier to build better Web apps more quickly and with less code. Flask doesn’t need a particular tool or library, and it’s also preferable for smaller projects. Both frameworks are great to use, but only the framework that’s ideal for your project development should be considered.

Flask vs Django – An In-Depth Comparison

Flask vs Django – An In-Depth Comparison

Both Django and Flask are hugely popular as Python Web frameworks. In this article, we'll compare Flask vs Django two widely used Python ...

According to the 2019 Stack Overflow developer survey, Python has risen in the ranks of programming languages. This popularity is not only due to applications in artificial intelligence or big data.Python can be used to build server-side web applications.

Both Django and Flask are hugely popular as Python Web frameworks. In this article, we’ll compare two widely used Python Web Frameworks.

(Note: I’m a big fan of another Python Web Framework called Masonite, so I’ll keep this comparison as objective as possible though).

Framework Installations

Both frameworks can be installed with the package-management system pip.

Flask installation

Flask installation is as simple as below:

pip install Flask touch app.py

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Put the source-code below into app.py:

from flask import Flask app = Flask(__name__) @app.route("/") def hello(): return "Hello World!"

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You can run your app with this command:

FLASK_APP=app.py flask run

That’s it! Your Flask application is available on URL http://localhost:5000/.

Django installation

You need to scaffold a bunch of files to start.

pip install Django django-admin startproject django_project python manage.py runserver

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Now that the server’s running, visit http://127.0.0.1:8000/ with your Web browser. You’ll see a “Congratulations!” page.

Project layout

Django provides a conventional project structure with several applications. But you should create your own project’s structure when using Flask.

Framework Configurations

Flask Configurations

The config attribute of the Flask object is as a config object. For example:

# app.py app = Flask(__name__) app.config['TESTING'] = True

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Django Configurations

A Django settings file contains all the configuration of your Django installation. Here are a couple of example settings:

# settings.py TESTING = True

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Routing

Flask Routing

Flask provides a route() decorator to tell Flask what URL should trigger a function:

# app.py @app.route('/') def hello_world(): return 'Hello, World!'

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Django Routing

Django lets you design URLs however you want:

# urls.py from django.urls import path from . import views urlpatterns = [ path('/', views.home), ]

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Templates

Django ships with a template engine called Django Template Languageand Flask ships with Jinja. Both template engines implement two main features: Template inheritance, Blocks or sections, if/else, for-loops.

Object Relational Mapping (ORM)

Django web framework includes a default ORM that can be used to interact with the application database.

User.objects.all()

Flask does not come with ORM capabilities by default. You need to manually add it if you want. Many Flask Developers prefer SQLAlchemy for database access.

User.query.all()

Admin Interface

Django provides a functional admin module automatically based on your project models. The developers even have the option to customize the admin interface to meet specific business requirements.

Community

Several popular websites use Django: Mozilla, Instagram, The Washington Times and so on. Flask is used by Pinterest or LinkedIn.

REST API

With the JavaScript’s frameworks popularity, REST APIs can be used to perform requests and receive responses via HTTP.

REST API in Flask

There are many Flask extensions to help you build RESTful services: Flask-RESTful for example. But you can use what Flask provides itself:

# app.py from flask import Flask, jsonify app = Flask(__name__) todos = [ { 'name': 'Learn Flask' }, { 'name': 'Learn SQLAlchemy' } ] @app.route('/todos', methods=['GET']) def get_todos(): return jsonify({'todos': todos})

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REST API in Django

Django Rest Framework (or simply DRF) is a powerful module for building web APIs using Django. It’s very easy to build model-backed APIs that have authentication policies and are browsable.

Django or Flask?

There’s no clear winner between Django and Flask, as everything depends on your final goal. Flask and Django both have their strengths and weaknesses. Django is very complete, with regard to ORM, admin interface etc. It’s well documented. But Django has a steep learning curve. Flask might be a better choice because you can learn it fast.