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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

Naming

module_name, package_name, ClassName, method_name, ExceptionName, function_name, GLOBAL_CONSTANT_NAME, global_var_name, instance_var_name, function_parameter_name, local_var_name.

避免使用的名字

  • 除计数器或迭代器外，都不应该使用单个字符作为名字
  • 避免使用中划线作为package/module名字
  • 双下划线开头和结尾的名字

正确的做法如下

Type Public Internal
Packages lower_with_under -
Modules lower_with_under _lower_with_under
Classes CapWords _CapWords
Exceptions CapWords -
Functions lower_with_under() _lower_with_under()
Global/Class Constants CAPS_WITH_UNDER _CAPS_WITH_UNDER
Global/Class Variables lower_with_under _lower_with_under
Instance Variables lower_with_under _lower_with_under (protected) or __lower_with_under (private)
Method Names lower_with_under() _lower_with_under() (protected) or __lower_with_under() (private)
Function/Method Parameters lower_with_under -
Local Variables lower_with_under -

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