使用super与类方法(Using super with a class method)

 我想自己学习Python中的super（）函数。 
 
 我虽然掌握了它，直到我来了这个例子（2.6），发现自己陷入困境。 
 
 http://www.cafepy.com/article/python_attributes_and_methods/python_attributes_and_methods.html#super-with-classmethod-example 
 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "test.py", line 9, in do_something
    do_something = classmethod(do_something)
TypeError: unbound method do_something() must be called with B instance as first argument (got nothing instead)
>>>
 
 当我在这个例子之前阅读这行时，不是我预期的： 
 

  如果我们使用类方法，我们没有一个实例调用super。 幸运的是，我们的超级作品甚至有一个类型作为第二个参数。 ---该类型可以直接传递给super，如下所示。 
 
 这是Python告诉我的是不可能的，因为do_something（）应该被调用一个B的实例。 
 
 提前致谢 

I'm trying to learn the super() function in Python.
 
I thought I had a grasp of it until I came over this example (2.6) and found myself stuck.
 
http://www.cafepy.com/article/python_attributes_and_methods/python_attributes_and_methods.html#super-with-classmethod-example
 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "test.py", line 9, in do_something
    do_something = classmethod(do_something)
TypeError: unbound method do_something() must be called with B instance as first argument (got nothing instead)
>>>
 
It wasn't what I expected when I read this line right before the example:
 

  If we're using a class method, we don't have an instance to call super with. Fortunately for us, super works even with a type as the second argument. --- The type can be passed directly to super as shown below. 
 
Which is exactly what Python tells me is not possible by saying that do_something() should be called with an instance of B.

原文：https://stackoverflow.com/questions/1817183