What is Python Django?

In this Python Django tutorial, I will explain to you what is python Django with its history.

Then you will learn “What is Python Django used for?”. After this, I will explain to you the features of Django with its architecture.

Finally, you will understand which companies use the Django framework. By the end of this tutorial, you will be confident about Django and its terminology.

What is Python Django

  • Django is a web-based framework built in Python, this is a very popular framework for building fast, reliable, and maintainable websites.
  • Anyone can use the Django framework because it is open-source and freely available.
  • In Django, you need to follow the MVT architecture for building the web app. MVT stands for Model View Controller.
  • Django has a large community where developers can explore and learn more about Django through documentation.
What is Python Django

Read Python Django vs Flask – Key Differences

History of Python Django

Django was created between 2003 and 2005 by Adrian Holovaty and Simon Willison at Lawrence Journal-World newspaper. It was started as an internal project at Lawrence Journal-World newspaper.

Sometimes the web development team at Lawrence Journal-World newspaper had to develop new features or even complete applications in a short period of time. As a result, Django was created to meet the tight deadlines of news websites while still keeping the development process neat and maintainable.

By 2005, Django had grown enough to manage lots of high sites, so the developers decided to make it an open-source project. So, Django was released under the BSD license in 2005. The project was named after a famous jazz guitarist, Django Reinhardt.

To maintain Django, a foundation called the Django Software Foundation (DSF) was founded in 2008.

From its first release (1.0) in September 2008 to the most recent version 3.1, Django has continued to evolve and improve.

What is Python Django used for

Django was initially designed to develop web applications for a newspaper company, the Lawrence Journal-World. So, it is fantastic at handling projects with a lot of text content, media files, and high traffic. However, the use of this framework isn’t limited to the publishing business only.

With each new release in Django, new features are added, making it efficient enough to build any type of web application. We can use Django to develop any type of web application from a social media website to an e-commerce store.

Here are some of the areas where Django is used nowadays.

  • Platforms with B2B CRM systems, Custom CRM systems
  • Platforms with features for data analysis, filtration, etc.
  • Creating admin dashboards
  • Creating an emailing system
  • Creating a verification system
  • Creating algorithm-based generators
  • Platforms with machine learning

Features of Python Django

So till now, we have understood what is a Django framework and for what purpose it has been used. Now, let’s understand why Django is one of the most popular frameworks for web development.

Django offers a large variety of features that make the development process clean and efficient. It combines many functionalities making it a complete framework. Here is a list of some of the main features that Django offers.

Open SourceDjango is a secure framework as it provides tools to assist developers in avoiding typical security problems. It also provides an authentication system to store and manage user accounts and passwords.
Fast DevelopmentDjango was designed with the goal of creating a framework that would allow developers to develop web applications in less time. So, Django reduces the project implementation, allowing rapid web development.
ScalableDjango is scalable in nature, which means we can easily migrate from a small-scale application to a large-scale application.
SecureDjango is a secure framework as it provides tools to assist developers in avoiding typical security problems. It also provides an authentication system to store and manage user accounts and passwords.
Largely supported librariesDjango contains a large set of modules and libraries that can be used to manage different web development tasks.
Admin InterfaceDjango is one of the most popular web development frameworks. So, it has a large and friendly community as well as channels for sharing and connecting.
Large CommunityDjango is one of the most popular web development frameworks. So, it has a large and friendly community as well as channels for sharing and connecting.

Python Django Architecture

Django follows its own convention of Model-View-Controller (MVC) architecture named Model View Template (MVT). The MVT is a software design pattern that mainly consists of 3 components Model, View, and Template.

Python Django Architecture

The Model in the MVT architecture is a data access layer that is used to handle data. The model plays a crucial in connecting the entire architecture to the database. Each model is linked to a single database table and we use the models.py file.

  • So model is the data structure of your Django application. Using the model you can define the database schema, business logic related to data, and data access. But how Django model is defined?
  • Django uses ORM which stands for Object Relational Mapping which allows you to define the model as Python classes. Each Python class that you define within the model represents the table in the database.
  • As you know when you define Python classes, you also define variables of those classes so in the case of the Django model those variables are called the field and these fields represent the column of the table.
  • The model in Django encapsulates the data that allows you to execute database actions such as querying, creating, updating, and deleting the records from the database without writing the SQL queries.
  • With the Django model you don’t need to worry about SQL queries, just write the Python classes.

The View in MVT architecture is used to define the overall logic of the data flow. For this implementation, we use the view.py file. Additionally, the purpose of the view file is to send the responses to the appropriate user.

  • Let me explain to you in simple terms, when you visit any website on the internet by clicking the website link, as soon as you click on the link, it sends a request to the server. From Django’s point of view, this request is handled by view that you write in a file called views.py.
  • So whatever request is made related to the user interface and interaction, the view in Django handles that kind of request and returns the appropriate response.
  • The view in Django is implemented using Python functions and classes that accept the incoming HTTP request and return the HTTP response.
  • Most of the time, the view can fetch data through a model layer or data access layer to generate dynamic content.
  • You can define Django views using different HTTP methods such as GET, POST, etc.

The Template in the MVT architecture is a presentation layer that handles the user interface. So in Django, the template layer is responsible for generating HTML content that the user sees on the website.

  • Python Django supports template language, and the template language allows you to write HTML with template tags.
  • Using these tags you can use the Python-like code to insert and generate dynamic content.

Next, let’s understand the workflow of Django using MVT architecture.

Python Django Workflow

So, whenever a user requests some resource Django acts as a controller and looks for the resource in the urls.py file. The urls.py file in Django contains the URL that is associated with the specific view. You can simply consider that the urls.py file is the controller.

If the requested URL matches then the view associated with that URL is called. After this, the view interacts with the model and template and renders the template. In the end, Django responds to the user and returns the template as a response.

For more details, you can also refer to the following official documentation.

Read: ModuleNotFoundError: No module named Django

Companies using Python Django

So, Django is simple and easy to use, additionally, it offers so many things which make it a perfect framework for any type of web application.

Django is so efficient that some of the big companies are also using it for their web application. Here are some of the companies that use Django.

  1. Instagram 
  2. Spotify
  3. Mozilla
  4. National Geographic
  5. Pinterest
  6. Bitbucket
  7. Eventbrite 

So in this Python Django tutorial, you learned about the Python Django framework, and its features, and understood what Django is used for with architecture and workflow.

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