Is it possible to override `__name__` derived from object?

Question

要获取类名的字符串表示，我们可以使用obj.__class__.__name__是否可以重载这些方法，以便我可以返回我的字符串而不是实际的类名？

Answer 1

Yep.

class A:
    def __init__(self):
        self.__class__.__name__ = 'B'

But this seems like a bad idea.

Answer 2

Let's try! (Yes, this works):

>>> class Foo(object):
...     pass
...
>>> obj = Foo()
>>> obj.__class__.__name__ = 'Bar'
>>> obj
<__main__.Bar object at 0x7fae8ba3af90>
>>> obj.__class__
<class '__main__.Bar'>

You could also have just done Foo.__name__ = 'Bar' , I used obj.__class__.__name__ to be consistent with your question.

Answer 3

You can do this:

>>> class Foo(object):
...     def __init__(self):
...             self.__class__.__name__ = "Bar"
... 
>>> print Foo().__class__.__name__
Bar

Or you can make your own double underscore attribute.

>>> class Foo(object):
...     __name__ = "Bar"
... 
>>> print Foo().__name__
Bar

But why would you want to do this? I don't see any possible use for this. BTW, I realize this is not the same as __class__.__name__ , but I don't think changing __class__.__name__ is generally a good idea.