Sec understand Series | in the history of the most simple introductory tutorial Python Django

http://www.cnblogs.com/baiboy/p/django1.html

Summary: Django's tutorial is categorized, different forms. Or more official document system, or free style blog document, or tend to parse the document instance. Even official documents, chapters are more elaborate text cumbersome, and sometimes we just focus on a feature usage only, but the biggest problem free Bowen is copying each other, confusing structure, covering facet and errors are obvious. Thus, this paper sort data and project development experience during their studies, finishing up a more common and practical articles.

It applies to

Getting Started, both C #, C, java, Python, R, etc. have any programming language can be the foundation;
I would like to quickly understand and Django developers get started quickly by.
Suitable as data query, technical point of reference.

Some basic concepts

Preconditions: assumes a basic Python language-based, or have the basis for a programming language. You also familiar with web development environment, understand some css, js, db and so on.

What Django that?

Django Web application framework is an open source, written in Python. Software using MVC design pattern, i.e. the model M, and a controller C. view V It was originally developed to manage Lawrence Publishing Group's news to some of the content-based sites. It was released in July 2005 under the BSD license. This framework is based on the Belgian gypsy jazz guitarist Django Reinhardt named. Django's main goal is to make the development of complex, database-driven Web site easier. Django focus on reusability and "pluggable" components, agile development and law DRY (Do not Repeat Yourself). It is commonly used in Django Python, even including configuration files and data models.

----Wikipedia

Django Web application framework is an open source, written in Python. MVC pattern using the frame, i.e. the model M, and a controller C. view V It was originally developed to manage Lawrence Publishing Group's news to some of the content-based website that is CMS (Content Management System) software. It was released in July 2005 under the BSD license. This framework is based on the Belgian gypsy jazz guitarist Django Reinhardt named.

----Baidu Encyclopedia

MTV development model?

Django is a framework based on MVC structure. However, in Django, the controller accepts user input portion discretion of the frame, so there is more concerned Django model (the Model), the template (Template) and view (the Views), called MTV mode. Their respective responsibilities are as follows:

All transaction model (Model), that is, data processing and data access layer related to: how to access, how to verify the validity of the relationship between behavior and what data is contained and so on.
View (View), namely the presentation layer processing performance-related decisions: how to display the page or other types of documents.
Template (Template), i.e. business logic and access the associated logic model retrieval of appropriate templates. Bridge model and template.

Django's architecture?

Let us glance Django whole picture:

urls.py inlet URL, corresponding to a function associated with the views.py (or generic class), access URL corresponding to a function.

views.py processing request issued by the user, from the corresponding urls.py over by the page rendering templates can display the content such as the login user name, user requested data, is output to the page.

models.py related to database operations, use this time to read data stored or, of course, when not using the database you can not use.

forms.py form, the user enters the data submitted in the browser, as well as verification of data generated input box and so on, of course, you can not use.

Function templates folder views.py in rendering templates in Html template, get dynamic content pages, can of course use caching to improve speed.

admin.py the background, you can use a small amount of code has a strong background.

settings.py Django setup, configuration files, such DEBUG switch, static files location.

The above py file does not understand it does not matter, will be detailed later. A picture is worth a thousand words, architecture picture of the working mechanism is as follows:

Django commercial sites everyone used

Sohu mailbox, shell network, watercress, love research, and easy of online cloud office, Yourong network, fast game play, ninety room, loans to help network, net interest odd, know almost, stylish and space, travel hee board: YxPad webpy, DNSPod international version, the kitchen, Betty's kitchen, Wopus questions and answers, plump net, scallop network, webmaster tools, easy of document management systems, personal rent, online document viewing - Easy degree cloud view, FIFA310 football data analysis expert, Sohu carry look like.

Django Prerequisites

Preconditions: pip, python, sublime, anaconda environment is installed.

Kisaki置 conditions:

Check whether the installation was successful:

xxx statistical analysis (decision) platform

System Environment: WIN10 64bit

Development Environment: sublime + Anaconda

Database: Mysql 5.6.17

Language: python3.5

Framework: django1.11 + Bootstrap

Visualization tools: Highchart | Echarts | plotly | Bokeh (using Echarts)

Django Basic Configuration Installation

1 Create a project, the project decision analysis: xmjc_analysis

Xmjc_analysis created in the root directory of E:

effect:

settings.py project settings file

urls.py total urls profile

wsgi.py deploy file servers

The directory structure __init__.py python package of necessary and relevant calls.

2 Create App called analysis

effect: