如何正确创建实用程序类 [英] How to create a utility class correctly

问题描述

我有一个打算用作实用程序文件的文件。
文件中应该包含很多静态方法。

I have a file that is meant to be a utility file. The file should contain a lot of static methods.

我应该这样在类内部定义方法吗？

Should I define the methods inside a class this way:

#utility.py
class utility(object):
    @staticmethod
    def method1(a,b,c):
        pass

    @staticmethod
    def method2(a,b,c):
        pass

或像这样使用它（不带类）：

or use it like this (without a class):

#utility.py
def method1(a,b,c):
    pass

def method2(a,b,c):
    pass

推荐答案

第二个选项是Python中的操作方法。我的意思是，如果您要做的只是导入函数，那么您可以执行以下操作：

The second option is the modus operandi in Python. I mean, if all you're doing is importing functions, then you can do something like this:

from utility import some_func

这将导入您的函数。

最好实际上，如果只使用静态函数，则只需将它们放在单独模块的全局命名空间中，这将使您的生活变得更加轻松。您想做的是制作对象，然后用静态方法填充它们。当您只需要在 .py 文件中定义函数时，为什么这样做？

Best practice is if you're using only static functions, then just put them in the global namespace of a separate module, it will make your life a lot easier. What you're trying to do is make objects and just fill them in with static methods. Why do this, when you can just define the functions in a .py file?

实际上，您正在尝试完成 。您正在尝试储存一些有用的实用程序功能。好吧， python-requests ，是一个第三方库，大多数Pythonista爱好者都喜欢这样做。它将良好的实用程序功能存储在单独的模块中。 此处是示例。

In fact, what you're trying to do has been done. You're trying to store away some good utility functions. Well, python-requests, is a third party library that is just adored by the majority of Pythonistas just does this. It stores away its good utility functions in a separate module. Here is the example.

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