Python模拟返回值

Question

Normally, when using mock, I'll have 通常，当使用模拟时，我会

from mock import Mock

m = Mock()
m
<Mock id='4334328720'>

Is it possible to change this output? 是否可以更改此输出？

Answer 1

Sure. 当然。 You can inherit from Mock and change the __repr__ method: 您可以从Mock继承并更改__repr__方法：

from mock import Mock
class Mock2(Mock):
    def __repr__(self):
        return "Hello World!"

m = Mock2()

>> m
Hello World!

You could also dynamically change the __repr__ method of your object like this: 您还可以像这样动态更改对象的__repr__方法：

from mock import Mock
m = Mock()

def new_repr(self):
    return "Hello dynamic Python!"
m.__repr__ = new_repr

>> m
Hello dynamic Python!