Python Libraries Django example

 Django: High-Level Python Web Framework

Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. It's designed to help you build complex, database-driven websites quickly and efficiently.

Key Features & Why it's Useful:

• Full-Stack Framework: Django provides almost everything you need to build a web application, including an ORM (Object-Relational Mapper) for database interaction, a template engine for creating dynamic HTML, a URL dispatcher, and security features.
• ORM (Object-Relational Mapper): Django's ORM allows you to interact with databases using Python code instead of writing raw SQL queries. This makes database operations more Pythonic and easier to maintain.
• Template Engine: Django's template engine lets you create dynamic HTML pages by embedding Python code within HTML templates.
• Security: Django has built-in security features to protect against common web vulnerabilities like cross-site scripting (XSS), cross-site request forgery (CSRF), and SQL injection.
• Scalability: Django is designed to be scalable, allowing you to handle a large number of users and requests.
• Admin Interface: Django automatically generates a powerful admin interface that allows you to manage your website's content and data.
• "Batteries Included": Django comes with many built-in features and tools, reducing the need to rely on third-party libraries for common tasks.

Simple Example:

• urls.py:

from django.urls import path
from . import views

urlpatterns = [
    path('hello/', views.hello_world, name='hello'),
]

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• views.py:

from django.http import HttpResponse

def hello_world(request):
    return HttpResponse("Hello, world!")

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This example defines a URL pattern /hello/ that maps to the hello_world view function. When a user visits /hello/, the hello_world function will return an HTTP response with the text "Hello, world!".