property

class Person():
    def __init__(self, name, age):
        self.name = name
        self.age = age

    def set_name(self, name):
        print('set_name')
        self.__name = name

    def get_name(self):
        print('get_name')
        return self.__name

    def get_age(self):
        print('get_age')
        return self.__age

    def set_age(self, age):
        print('set_age')
        self.__age = age


    name = property(get_name, set_name)
    age = property(get_age, set_age)

p = Person('Robert', 42)
print(p.name)