What is Django in Python?

Django is Python's most popular full-stack web framework, following the "batteries included" philosophy. It provides: ORM (Django ORM with migrations), admin interface (automatic CRUD UI from models), URL routing, template engine, forms with validation, authentication system (users, groups, permissions), security (CSRF, XSS, SQL injection protection built-in). Project structure: django-admin startproject mysite, python manage.py startapp blog. Define models, create migrations (manage.py makemigrations/migrate), define views (function-based or class-based), configure URLs. Django REST Framework (DRF) adds API serialization. Django channels adds WebSocket support. Django follows MTV (Model-Template-View) which is effectively MVC. Its convention-over-configuration approach means fast development for standard web apps.