Why Use Django?
In this page:
Batteries-Included Philosophy
Django ships with an ORM, authentication, an admin site, and a templating engine out of the box, so you do not need to hunt for and glue together separate libraries.
Example: Batteries-Included Philosophy
These five apps ship enabled in every new project — admin, auth, sessions, messages, and static file handling — all included without installing anything extra.
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
]
{# Django-only code -- models.py/views.py/urls.py/settings.py
snippets, or template markup using Django template tags/variables
-- can't run standalone via Judge0 or the browser preview, since
it needs a real Django project. Only this course's pure-Python
examples (example_lang == 'python', no Django imports) are
actually runnable, so those still get the button below. #}
Security Out of the Box
Django automatically protects against common attacks like Cross-Site Request Forgery (CSRF) and SQL injection, so you get a safer app by default without extra setup.
Note: Security features are enabled automatically, not opt-in, so new projects start safe.
Example: Security Out of the Box
{% csrf_token %} is the only line you add — Django rejects any POST request missing this token, blocking CSRF attacks automatically.
<form method="post">
{% csrf_token %}
<input type="text" name="comment">
<button type="submit">Post</button>
</form>
{# Django-only code -- models.py/views.py/urls.py/settings.py
snippets, or template markup using Django template tags/variables
-- can't run standalone via Judge0 or the browser preview, since
it needs a real Django project. Only this course's pure-Python
examples (example_lang == 'python', no Django imports) are
actually runnable, so those still get the button below. #}
Faster Development Speed
Because so much is pre-built, a working Django site can go from an empty folder to a working page much faster than writing every piece by hand.
Example: Faster Development Speed
Two lines give the Article model a complete add/edit/delete/search admin interface — no HTML, forms, or views written by hand.
from django.contrib import admin
from .models import Article
admin.site.register(Article)
{# Django-only code -- models.py/views.py/urls.py/settings.py
snippets, or template markup using Django template tags/variables
-- can't run standalone via Judge0 or the browser preview, since
it needs a real Django project. Only this course's pure-Python
examples (example_lang == 'python', no Django imports) are
actually runnable, so those still get the button below. #}
Django Scales With Your Project
Django works equally well for a two-page hobby site and a large production system, because its structure keeps growing code organized as more features are added.
Warning: Skipping structure early on a "small" project often causes pain once it grows.
Example: Django Scales With Your Project
Each new feature becomes its own app added to this one list — the same INSTALLED_APPS pattern scales from a single hobby app to dozens of apps in a large project.
INSTALLED_APPS = [
'django.contrib.admin',
'blog',
'shop',
'accounts',
]
{# Django-only code -- models.py/views.py/urls.py/settings.py
snippets, or template markup using Django template tags/variables
-- can't run standalone via Judge0 or the browser preview, since
it needs a real Django project. Only this course's pure-Python
examples (example_lang == 'python', no Django imports) are
actually runnable, so those still get the button below. #}
- Thinking Django is only good for huge sites and overkill for small projects.
- Ignoring Django's built-in admin panel and rebuilding one from scratch instead.
- Believing Django forces one specific frontend technology instead of working with any frontend.
- Django speeds up development with reusable, built-in components.
- It comes with a free admin interface generated from your models.
- Django has strong security defaults like CSRF and SQL-injection protection.
- It scales from small hobby projects to large production sites.
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