Python中变量和函数的命名约定是什么?

来自c#背景，变量和方法名的命名约定通常是camelCase或PascalCase:

// C# example
string thisIsMyVariable = "a"
public void ThisIsMyMethod()

在Python中，我见过上面的情况，但我也见过使用下划线:

# python example
this_is_my_variable = 'a'
def this_is_my_function():

Python是否有更可取、更明确的编码风格?

当前回答

无论是否在课堂上或在课堂外:

变量和函数小写，如下所示:

name = "John"

def display(name):
    print("John")

如果它们多于一个单词，则用下划线“_”分隔，如下所示:

first_name = "John"

def display_first_name(first_name):
    print(first_name)

并且，如果一个变量是一个常量，它是大写的，如下所示:

FIRST_NAME = "John"

2022-06-13 13:08:04

其他回答

无论是否在课堂上或在课堂外:

变量和函数小写，如下所示:

name = "John"

def display(name):
    print("John")

如果它们多于一个单词，则用下划线“_”分隔，如下所示:

first_name = "John"

def display_first_name(first_name):
    print(first_name)

并且，如果一个变量是一个常量，它是大写的，如下所示:

FIRST_NAME = "John"

2022-06-13 13:08:04

There is PEP 8, as other answers show, but PEP 8 is only the styleguide for the standard library, and it's only taken as gospel therein. One of the most frequent deviations of PEP 8 for other pieces of code is the variable naming, specifically for methods. There is no single predominate style, although considering the volume of code that uses mixedCase, if one were to make a strict census one would probably end up with a version of PEP 8 with mixedCase. There is little other deviation from PEP 8 that is quite as common.

2008-10-01 21:12:41

参见Python PEP 8:函数和变量名:

函数名应该是小写的，单词之间用下划线分隔，以提高可读性。变量名遵循与函数名相同的约定。 mixedCase只允许在已经是流行风格的上下文中使用(例如threading.py)，以保持向后兼容性。

2008-10-01 21:05:24

通常，要遵循语言标准库中使用的约定。

2008-10-02 03:55:18

我个人在用其他编程语言开发时使用Java的命名约定，因为它是一致的，易于遵循。这样我就不会一直纠结于使用什么约定，而这本来不应该是我项目中最难的部分!

2019-08-22 03:37:53

Python中变量和函数的命名约定是什么?

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