35+ Django Interview Questions and Answers

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

No, Django is named after Django Reinhardt, a jazz guitarist from the 1930s to 1950s. 

Django features include a built-in admin panel, ORM, authentication mechanisms, and extensive documentation. 

Companies using Django include Instagram, Pinterest, Mozilla, and The Washington Times. 

Web developers prefer Django for its rapid development capabilities, robust security features, and scalability. 

CRUD stands for Create, Read, Update, Delete—basic operations provided by many web frameworks, including Django. 

Django's drawbacks include a steep learning curve, monolithic structure, and sometimes overly complex URL dispatchers. 

Django uses an MVT (Model-View-Template) architecture, a variation of the MVC framework. 

A Django project directory includes apps, settings, URLs, wsgi/py files, and typically app directories containing models, views, and templates. 

Models in Django are Python classes that define the structure of an application’s data and provide mechanisms to manage (add, modify, delete) the data in the database. 

Views in Django are functions or classes that handle the logic and control flow for requests and responses. They request information from the models and pass it to templates. 

Django ORM (Object-Relational Mapping) allows developers to interact with their database like Python objects, abstracting SQL commands. 

Static files in Django are assets such as CSS, JavaScript, and images that are not dynamically generated and are necessary for the frontend of a web application. 

Django-admin and manage.py are command-line utilities that help manage Django projects. They handle tasks like starting new apps, working with databases, and initiating server. 

Jinja templating is a template engine for Python, similar to Django's template system, allowing the creation of HTML interfaces using Python-like expressions for dynamic content rendering. 

A project is a complete Django website containing multiple apps, which are modular components handling different parts of the website’s functionality. 

A model in Django is a Python class that defines the structure of database data, including the types of fields and possibly also the behavior of the data. 

Templates in Django are HTML files that allow Python-like expressions for inserting dynamic data that a view can pass to the template. 

The cycle starts when a web server receives a request, which Django matches with a URL pattern, processes via a view, and returns a response generated by a template. 

The Django Admin interface is a built-in, web-based interface for managing site data. It’s highly customizable and automatically generated from model definitions. 

Django can be installed via pip with the command: pip install django. 

Run django-admin --version or python -m django --version in your command line. 

Signals in Django allow decoupled applications to get notified when actions occur elsewhere in the application. 

Django’s user authentication system handles user accounts, groups, permissions, and cookie-based user sessions. 

Django supports PostgreSQL, MySQL, SQLite, and Oracle. 

The session framework in Django enables storing and retrieving arbitrary data on a per-site-visitor basis to manage state across requests. 

Context in Django is a dictionary mapping variable names to Python objects, passed to the template to render the dynamic content. 

Django.shortcuts.render combines a given template with a given context dictionary and returns an HttpResponse object with that rendered text. 

Django Rest Framework (DRF) is a powerful toolkit for building Web APIs in Django, providing features like serialization, authentication, and view sets for rapid API development. 

Middleware in Django is a framework of hooks into Django's request/response processing. It's a lightweight, low-level plugin system for globally altering Django’s input or output. 

A URLs-config file in Django contains mappings between URL path expressions to Python callback functions (views). This defines the URL structure for a Django web application. 

Django does not natively support composite primary keys (multiple-column primary keys) without using a third-party package. 

You can see the raw SQL queries Django runs by using print(queryset.query) for a given queryset or using Django's logging capabilities to log SQL queries. 

Django supports several caching strategies including file-based caching, memory-based caching, database caching, and using distributed caching solutions like Memcached or Redis. 

A QuerySet in Django is a collection of database queries to retrieve objects from your database. It allows you to read the data, filter it, order it, and perform other operations. 

The django.test.Client class in Django is used for simulating a client to test views during development, allowing you to interact with your application's views and check responses without running a server. 

To use file-based sessions in Django, set SESSION_ENGINE to "django.contrib.sessions.backends.file" in your settings file and specify a directory for SESSION_FILE_PATH where session files will be stored.