Introduction to Django

Django is a high-level Python web framework used to build secure, scalable, and fast web applications.

It helps developers create web applications quickly by providing built-in tools and features.

Django follows the principle:

“Don’t Repeat Yourself (DRY)”

This means writing clean and reusable code.

Why Use Django?

Django is popular because:

  • It is built with Python
  • It is fast and secure
  • It has built-in authentication
  • It includes an admin panel
  • It follows best development practices
  • It is scalable for large applications

Many large websites use Django.

What Type of Applications Can Be Built?

With Django, you can build:

  • Business websites
  • E-commerce platforms
  • Social media apps
  • Learning management systems
  • APIs
  • Dashboards

Django Architecture (MVT Pattern)

Django follows the MVT architecture:

Model
View
Template

1. Model

  • Handles database
  • Defines data structure
  • Interacts with database

Example:
User, Product, Order tables

2. View

  • Contains business logic
  • Processes requests
  • Returns responses

3. Template

  • Handles frontend display
  • Uses HTML
  • Shows dynamic data

How Django Works

  1. User sends request
  2. URL dispatcher routes request
  3. View processes logic
  4. Model interacts with database
  5. Template renders data
  6. Response sent to browser

Installing Django

Install using pip:

pip install django

Check version:

django-admin --version

Creating a Django Project

Create project:

django-admin startproject myproject

Run server:

python manage.py runserver

Then open:

Django Apps

A Django project can contain multiple apps.

Example apps:

  • Accounts
  • Products
  • Orders

Create app:

python manage.py startapp appname

Django Admin Panel

One of Django’s powerful features is the built-in Admin Panel.

It allows:

  • Managing database records
  • Adding and editing users
  • Viewing application data

Access admin:

Why Learn Django?

Learning Django helps you:

Build backend systems
Create full-stack applications
Develop APIs
Work with databases
Build production-ready web apps

Key Takeaway

Django is a powerful Python web framework that simplifies web development.

It handles routing, database management, security, and authentication — allowing developers to focus on building features instead of writing repetitive code.

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