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Learning Django, how to understand the characteristics of different versions?
Django is one of the widely used Python web frameworks, and the latest version is Django 3.1. However, as Django versions are updated, some features and APIs may change. As a Django developer, it is very important to understand the characteristics of different versions, which will help us better use and upgrade Django.
In this article, we will introduce in detail how to understand the features of different versions of Django and illustrate it through specific code examples. let's start!
Important features of Django 2.0:
Important features of Django 3.0:
Example 1: The new routing system in Django 2.0
The following code shows how the newly introduced routing system in Django 2.0 works:
# myapp/urls.py from django.urls import path from . import views urlpatterns = [ path('hello/', views.hello_world), ] # myapp/views.py from django.http import HttpResponse def hello_world(request): return HttpResponse("Hello, World!")
In this example, We use the new path() function to define URL routes. This new routing system is more concise and intuitive, making it easier to use and maintain than the old url() function.
Example 2: ASGI support in Django 3.0
The following example shows how ASGI support in Django 3.0 works:
# myproject/asgi.py import os from django.core.asgi import get_asgi_application os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings') application = get_asgi_application()
In this example, we use the new get_asgi_application( ) function to get the ASGI application. This enables Django to handle asynchronous requests and interact with ASGI servers.
By writing and running these sample codes, we can better understand and experience the new features in Django 2.0 and Django 3.0.
Summary
Understanding the features of different versions of Django is the key to becoming an excellent Django developer. By reading official documentation and writing sample code, we can gain a deeper understanding of the new features and important improvements in each version. In this way, we can better take advantage of Django and be able to adapt to changes in a timely manner when upgrading to new versions.
I hope this article will be helpful for you to learn the features of the Django version! Start exploring!
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