class Person(object):

    __slots__ = ('name', 'gender')

    def __init__(self, name, gender):

        self.name = name

        self.gender = gender

class Student(Person):

    __slots__ = ('score',)

    def __init__(self,name,gender,score):

        super(Student,self).__int__(name,gender)

        self.score=score

s = Student('Bob', 'male', 59)

s.name = 'Tim'

s.score = 99

print s.score

输出结果是

Traceback (most recent call last):
File "index.py", line 17, in 
s = Student('Bob', 'male', 59)
File "index.py", line 14, in __init__
super(Student,self).__int__(name,gender)
AttributeError: 'super' object has no attribute '__int__