Python 关于 super 的疑问

[yujianwjj]

网上很多文档都说，super()返回的是 MRO 中的下一个类。

class Animal(object):
    def __init__(self, name):
        self.name = name

    def greet(self):
        print('Hello, I am {}'.format(self.name))


class Dog(Animal):
    def greet(self):
        super().greet()
        print('WangWang...')

dog = Dog('dog')
dog.greet()

按照网上的教程理解，super()返回的是 mro 中的下一个类，那么 super()返回的应该是 Animal，那么如果是 Animal 的话，super().greet()，就应该相当于Animal.greet()，但是这样的话肯定是不能调用的，应该是Animal.greet(self)，才好理解。

而且通过 print(super()) 得到的返回值是 <super: <class 'Dog'>, <Dog object>>，说明 super 是一个类。

那么，super() 返回的到底是什么？

[eastpiger]

```
super([type[, object-or-type]])
Return a proxy object that delegates method calls to a parent or sibling class of type. This is useful for accessing inherited methods that have been overridden in a class. The search order is same as that used by getattr() except that the type itself is skipped.
```

https://docs.python.org/3/library/functions.html?highlight=super#super