Top 20 Django Interview Questions and Answers 2025

Flask is lightweight and good for small projects, while Django is more robust and suitable for larger projects.

• Flask is good for small projects with simple requirements

• Django is more suitable for larger projects with complex requirements

• Flask is lightweight and flexible, allowing for more customization

• Django has a lot of built-in features and is more opinionated

• Flask is better for RESTful APIs and microservices

• Django is better for full-stack web applications

• Examples of Flask ...read more

Middleware in Django Settings.py is used to modify the request/response objects, process requests before they reach the view, and responses before they are sent to the client.

• Middleware classes are defined in the MIDDLEWARE setting in settings.py

• They are executed in the order they are defined in the MIDDLEWARE setting

• Middleware can be used for authentication, logging, error handling, etc.

• Example: 'django.middleware.security.SecurityMiddleware' adds security enhancements to th...read more

Django signals allow certain senders to notify a set of receivers that some action has taken place.

• Signals allow decoupled applications to get notified when certain actions occur elsewhere in the application

• They are used to avoid coupling between applications

• Signals are defined by providing a receiver function which gets called when the signal is sent

• Example: A signal can be sent when a new user is created, and a receiver function can be defined to send a welcome email to the...read more

Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. Flask is a lightweight WSGI web application framework.

• Django is a full-featured framework with built-in ORM, admin panel, and authentication system.

• Flask is a microframework that is more lightweight and flexible, allowing developers to choose their own tools and libraries.

• Django follows the 'batteries included' philosophy, while Flask follows the 'minimalistic' approach....read more

Django is a high-level Python web framework that follows the model-view-controller architectural pattern.

• Django uses the MTV (Model-Template-View) architectural pattern.

• It provides a robust set of tools and libraries for building web applications.

• Django follows the DRY (Don't Repeat Yourself) principle, promoting code reusability.

• It includes an ORM (Object-Relational Mapping) layer for database operations.

• Django supports URL routing, form handling, authentication, and session...read more

To create APIs in Django, you can use Django REST framework to define serializers, views, and urls.

• Use Django REST framework to create serializers for data models

• Define views to handle API requests and responses

• Map URLs to views using Django's URL patterns

• Use class-based views for more structured API code

• Implement authentication and permissions for secure APIs

jQuery is a JavaScript library for DOM manipulation and event handling. Django is a Python web framework for building web applications.

• jQuery simplifies HTML document traversing, event handling, and animating.

• Django follows the Model-View-Template (MVT) architectural pattern.

• Both are open-source and widely used in web development.

• jQuery can be used with any web framework, while Django has its own ORM and templating engine.

Scaling a Django application involves optimizing performance, increasing capacity, and improving efficiency.

• Use caching to reduce database queries and improve response times

• Implement load balancing to distribute traffic evenly across multiple servers

• Optimize database queries and indexes for faster data retrieval

• Utilize asynchronous tasks for time-consuming operations

• Horizontal scaling by adding more servers to handle increased traffic

• Vertical scaling by upgrading server resou...read more

Django code to render hello world template

• Create a new Django project

• Create a new Django app within the project

• Create a template file with 'hello world' content

• Update views.py to render the template

• Update urls.py to map a URL to the view

Bench migrate is a command used in Django to apply database schema changes.

• Bench migrate is used to update the database schema to match the current codebase.

• It is a command used in Django to apply database schema changes.

• It is used to create, modify or delete database tables, fields or indexes.

• It is an important step in the deployment process to ensure the application runs smoothly.

Django model is a Python class that represents a database table and its fields.

• Django models define the structure of database tables

• Each model class corresponds to a table in the database

• Models can have fields like CharField, IntegerField, ForeignKey, etc.

• Models can also have methods to perform operations on the data

Basic tasks in Django include creating models, views, templates, URLs, and forms.

• Creating models to define database structure

• Creating views to handle user requests and return responses

• Creating templates to generate HTML output

• Defining URLs to map requests to views

• Creating forms to handle user input

Django fixtures are files that contain pre-defined data to be loaded into a Django database.

• Fixtures are used to populate the database with initial data.

• They are written in JSON, XML, or YAML format.

• Fixtures can be used for testing, seeding data, or providing default data.

• They can be loaded using the 'loaddata' management command.

• Example: [{'model': 'myapp.myModel', 'fields': {'name': 'John', 'age': 25}}]

Developing APIs using Django involves creating views, serializers, and urls to interact with data.

• Create Django project and app

• Define models for data structure

• Create serializers to convert data to JSON

• Write views to handle API requests

• Define urls to map endpoints to views

Django's request response flow involves the request being handled by URL dispatcher, views, middleware, and templates before generating a response.

• Request is received by URL dispatcher which maps the URL to a view function

• View function processes the request, interacts with models if needed, and returns a response

• Middleware can intercept the request and response for additional processing

• Templates are used to generate HTML content for the response

Django generic views are pre-built views provided by Django to simplify common tasks like displaying data from a database.

• Django generic views help reduce code duplication by providing ready-to-use views for common tasks like displaying objects from a database.

• They are generic in nature and can be easily customized to suit specific requirements.

• Examples include ListView for displaying a list of objects, DetailView for displaying details of a single object, and FormView for ha...read more

Django memory is managed through garbage collection and reference counting.

• Django uses a combination of garbage collection and reference counting to manage memory.

• Garbage collection automatically frees up memory by identifying and removing objects that are no longer in use.

• Reference counting keeps track of the number of references to an object and deallocates it when the count reaches zero.

• Django's memory management helps optimize performance and prevent memory leaks.

• Example:...read more

Django REST Framework is a toolkit for building web APIs in Django, providing tools for serialization, authentication, and viewsets.

• Provides tools for serialization, authentication, and viewsets

• Makes it easier to develop RESTful services in Django

• Includes features like serialization, authentication, and view classes

Django rest framework is a powerful and flexible toolkit for building Web APIs in Django.

• Django rest framework allows you to easily build RESTful APIs in Django by providing serializers, views, and authentication.

• It includes built-in support for pagination, filtering, and authentication.

• You can define API endpoints using class-based views and routers.

• Example: Creating a simple API endpoint for a model in Django using Django rest framework.

Both Django and Flask are popular Python web frameworks, but Django is better for larger, more complex projects while Flask is better for smaller, simpler projects.

• Django is a full-featured framework with built-in tools for authentication, routing, and database management, making it ideal for large-scale applications.

• Flask is a micro-framework that is lightweight and flexible, making it a good choice for smaller projects or prototypes.

• Django follows the 'batteries included' p...read more

Middleware in Django is a framework of hooks into Django's request/response processing.

• Middleware is a framework of hooks that allows you to modify request/response objects globally.

• It is a lightweight, low-level plugin system for globally altering Django's input or output.

• Middleware can be used for authentication, logging, error handling, etc.

• Examples of middleware in Django include AuthenticationMiddleware, SessionMiddleware, and CsrfViewMiddleware.

Django is preferred for larger, more complex web applications due to its built-in features and batteries-included approach.

• Django provides a more comprehensive set of features out of the box compared to Flask.

• Django includes an ORM, admin panel, authentication system, and other useful tools for building web applications.

• Flask is more lightweight and flexible, making it better suited for smaller projects or APIs.