如何在Python中创建新的未知或动态/扩展对象 [英] How to create a new unknown or dynamic/expando object in Python

问题描述

在python中，我们如何在没有预定义类的情况下创建新对象，然后动态地向其添加属性?

In python how can we create a new object without having a predefined Class and later dynamically add properties to it ?

示例:

dynamic_object = Dynamic()
dynamic_object.dynamic_property_a = "abc"
dynamic_object.dynamic_property_b = "abcdefg"

最好的方法是什么?

编辑，因为很多人在评论中建议我可能不需要它.

EDIT Because many people advised in comments that I might not need this.

问题是我有一个序列化对象属性的函数.因此，由于某些构造函数的限制，我不想创建预期类的对象，而是创建一个类似的对象，比如说 mock ，添加任何自定义"属性需要，然后将其反馈给函数.

The thing is that I have a function that serializes an object's properties. For that reason, I don't want to create an object of the expected class due to some constructor restrictions, but instead create a similar one, let's say like a mock, add any "custom" properties I need, then feed it back to the function.

推荐答案

只需定义自己的类即可:

Just define your own class to do it:

class Expando(object):
    pass

ex = Expando()
ex.foo = 17
ex.bar = "Hello"

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