python - 'Animal2' object has no attribute '_Animal2__name' -


this question has answer here:

i wrote in python3.6 using pycharm follows:

class animal1:     def __init__(self, name):         self.__name = name   cat = animal1("tom")  class animal2(animal1):     def __init__(self, name, sex):         self.__sex = sex         super(animal2, self).__init__(name) def tostring(self):     print("my name {} , i'm {}".format(self.__name, self.__sex))   dog = animal2("jerry", "boy")  dog.tostring()

and keep getting weird warning:

traceback (most recent call last):   file "c:/users/zeiyeung/desktop/my1thpy/main.py", line 30, in <module>     dog.tostring()   file "c:/users/zeiyeung/desktop/my1thpy/main.py", line 25, in tostring     print("my name {} , i'm {}".format(self.__name, self.__sex)) attributeerror: 'animal2' object has no attribute '_animal2__name'

so i'm wondering if using super() method in wrong way?

please check code above , see what's going on...

：(


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