ONE :  Use 4-space indentation， and no tabs.--用4个空格键进行代码缩进，不要应用tab键.

    4 spaces are a good compromise between small indentation （allows greater nesting depth） and large indentation （easier to read）. Tabs introduce confusion， and are best left out.

TWO :  Wrap lines so that they don’t exceed 79 characters.-- 每一行代码不要跨越79字符.

    This helps users with small displays and makes it possible to have several code files side-by-side on larger displays.

THREE ：  Use blank lines to separate functions and classes， and larger blocks of code inside functions. -- 在函数或者类中应用空白行

FOUR :  When possible， put comments on a line of their own.--添加注释，这个可以帮助你本身和他人浏览代码

FIVE ：  Use spaces around operators and after commas， but not directly inside bracketing constructs: a = f（1， 2） + g（3， 4）.--在编写代码的过程中，重视应用空格，如许使得你的代码看上去清楚，美观

SIX :  Name your classes and functions consistently; the convention is to use CamelCase for classes and lower_case_with_underscores for functions and methods. Always use self as the name for the first method argument --应用驼峰定名法定名类名；应用lower_case_with_underscores 如许的体式格式定名办法或者函数

SEVEN :  Don’t use fancy encodings if your code is meant to be used in international environments. Python’s default， UTF-8， or even plain ASCII work best in any case. -- 同一应用UTF-8的编码体式格式进行编码

EIGHT :  Likewise， don’t use non-ASCII characters in identifiers if there is only the slightest chance people speaking a different language will read or maintain the code.--不要应用非ascii字符标识符