JuniorTheoryCommon

What does the program print?

Python

class Animal:
    def __init__(self, name):
        self.name, self.sound = name, "hum"


class Dog(Animal):
    def __init__(self, name):
        super().__init__(name)
        self.sound = "woof"


print(Dog("Rex").name, Dog("Rex").sound)

Rex woof

Expecting Rex hum, as if the parent's value won: super().__init__(name) runs first and sets hum, then the next line of Dog.__init__ replaces it with woof.
Expecting an AttributeError for name, as if Dog lost the parent's setup: super().__init__(name) runs Animal.__init__, which sets self.name.

What would Dog("Rex").name give if the super().__init__(name) line were removed?
What would .sound be if Dog.__init__ set it before calling super().__init__(name)?

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Back to questions

JuniorTheoryCommon

What does the program print?

Python

class Animal:
    def __init__(self, name):
        self.name, self.sound = name, "hum"


class Dog(Animal):
    def __init__(self, name):
        super().__init__(name)
        self.sound = "woof"


print(Dog("Rex").name, Dog("Rex").sound)

Rex woof

Expecting Rex hum, as if the parent's value won: super().__init__(name) runs first and sets hum, then the next line of Dog.__init__ replaces it with woof.
Expecting an AttributeError for name, as if Dog lost the parent's setup: super().__init__(name) runs Animal.__init__, which sets self.name.

What would Dog("Rex").name give if the super().__init__(name) line were removed?
What would .sound be if Dog.__init__ set it before calling super().__init__(name)?

Back to questions Open topic in roadmap →Answer it yourself — Quiz