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Introduction

Python Language Rules

Lint Imports Packages Exceptions Global Variables Nested/Local/Inner Classes and Functions List Comprehensions Default Iterators and Operators Generators Lambda Functions Conditional Expressions Default Argument Values Properties True/False Evaluations Deprecated Language Features Lexical Scoping Function and Method Decorators Threading Power Features

Python Style Rules

Semicolons Line Length Parentheses Indentation Blank Lines Whitespace Shebang Line Comments Classes Strings Files and Sockets TODO Comments Imports Formatting Statements Access Control Naming Main

Django Style Rules

Models Views Forms Urls

Imports Formatting

Imports should be on separate lines.

import os
import sys

不要

import os, sys

Imports应该位于文件的最上方，通常需要进行分组：

  • 基础库
  • 第三方库
  • 应用本身模块

在每一个分组中，根据引用的完整路径进行排序，忽略大小写。

import foo
from foo import bar
from foo.bar import baz
from foo.bar import Quux
from Foob import ar

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