what is python django

django (Python Web Framework)

##Django is an open source web application framework written in Python . The framework pattern of MVT is adopted, namely model M, view V and template T. It was originally developed to manage some of the news content-based websites of Lawrence Publishing Group, that is, CMS (Content Management System) software. And was released under the BSD license in July 2005. This frame is named after the Belgian gypsy jazz guitarist Django Reinhardt.

Framework Introduction

The Django project is a Python custom framework, which originated from an online news website and was released as open source in 2005.

The core components of the Django framework are:

Object-relational mapping for creating models

Perfect management interface designed for end users

First-class URL design

Designer-friendly template language

Caching system.

Django (pronounced: [`dʒæŋɡəʊ]) is an open source web development framework (open source web framework) written in python language. It encourages rapid development and follows MVC design. Django abides by BSD copyright, was first released in July 2005, and released the first official version 1.0 in September 2008.

Django is named after the Belgian jazz musician Django Reinhardt. He is a Gypsy who mainly plays guitar and also plays violin.

Due to the rapid development of Django in recent years, its applications have become more and more widespread. It was selected as the 2013 SD Times 100 by the famous IT development magazine SD Times, ranking 6th in the "API, Library and Framework" category. Considered a leader in this field.

Design Philosophy

The main purpose of Django is to develop database-driven websites easily and quickly. It emphasizes code reuse, and multiple components can easily serve the entire framework in the form of "plug-ins." Django has many powerful third-party plug-ins, and you can even easily develop your own toolkit. This makes Django very scalable. It also emphasizes rapid development and DRY (Do Not Repeat Yourself) principles.

Django’s MVC-based design is very beautiful:

Object-relational mapping (ORM, object-relational mapping): Define your data model in the form of Python classes, and ORM will By connecting the model to a relational database, you get a very easy-to-use database API, and you can also use raw SQL statements in Django.

URL dispatch: Using regular expressions to match URLs, you can design any URL without framework-specific restrictions. Be as flexible as you like.

Template system: Use Django’s powerful and extensible template language to separate design, content and Python code. And it is inheritable.

Form processing: You can easily generate various form models to verify the validity of the form. You can easily generate corresponding forms from the model instances you define.

Cache system: You can hang it on a memory buffer or other framework to implement super caching - to achieve the granularity you need.

Session, user login and permission check, quickly develop user session function.

Internationalization: Built-in internationalization system makes it easy to develop websites in multiple languages.

Automated management interface: You don’t need to spend a lot of work to create personnel management and update content. Django comes with an ADMIN site, similar to the content management system

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