You want to extend a parent class init method to add a new attribute in the child class. Which code correctly uses super() to do this?

hard📝 Application Q15 of 15

Python - Inheritance and Code Reuse

You want to extend a parent class __init__ method to add a new attribute in the child class. Which code correctly uses super() to do this?

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

class Dog(Animal):
    def __init__(self, name, breed):
        ???
        self.breed = breed

Choose the correct replacement for ???.

Asuper(Dog, self).__init__(breed)

Bsuper().__init__(name)

CAnimal.__init__(self, breed)

Dsuper().__init__(breed)

Step-by-Step Solution

Solution:

Step 1: Understand parent __init__ parameters
Animal's __init__ takes name, so we must pass name to it.
Step 2: Use super() correctly in child __init__
Calling super().__init__(name) runs Animal's __init__ properly, then child adds breed.
Final Answer:
super().__init__(name) -> Option B
Quick Check:
super() calls parent with correct args = B [OK]

Quick Trick: Pass parent's expected args to super().__init__() [OK]

Common Mistakes:

Passing wrong argument to super()
Calling parent __init__ without self
Using old super() syntax incorrectly

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More Python Quizzes

You want to extend a parent class init method to add a new attribute in the child class. Which code correctly uses super() to do this?

Step 1: Understand parent init parameters

Step 2: Use super() correctly in child init

Final Answer:

Quick Check:

Want More Practice?

You want to extend a parent class __init__ method to add a new attribute in the child class. Which code correctly uses super() to do this?

Step 1: Understand parent __init__ parameters

Step 2: Use super() correctly in child __init__

Final Answer:

Quick Check:

Want More Practice?

You want to extend a parent class init method to add a new attribute in the child class. Which code correctly uses super() to do this?

Step 1: Understand parent init parameters

Step 2: Use super() correctly in child init