Inheriting attributes and methods in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to make class Dog inherit from class Animal.

Python

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

class Dog([1]):
    pass

Drag options to blanks, or click blank then click option'

AAnimal

BDog

Cobject

DPet

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put the parent class name in parentheses.

Using the child class name instead of the parent class name.

The class Dog inherits from Animal by putting Animal in parentheses after the class name.

2fill in blank

medium

Complete the code to call the parent class constructor inside the child class.

Python

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

class Dog(Animal):
    def __init__(self, name, breed):
        [1](name)
        self.breed = breed

Drag options to blanks, or click blank then click option'

Asuper().__init__

BAnimal.__init__

CDog.__init__

Dself.__init__

Attempts:

3 left

💡 Hint

Common Mistakes

Calling self.__init__ which causes infinite recursion.

Calling the child class constructor instead of the parent.

Use super().__init__(name) to call the parent class constructor properly.

3fill in blank

hard

Fix the error in the code to correctly inherit and use the method from the parent class.

Python

class Animal:
    def speak(self):
        return "Animal sound"

class Cat(Animal):
    def speak(self):
        return [1]

Drag options to blanks, or click blank then click option'

Aself.speak() + " meow"

BAnimal.speak() + " meow"

Csuper().speak() + " meow"

D"meow"

Attempts:

3 left

💡 Hint

Common Mistakes

Calling self.speak() inside speak causes infinite recursion.

Calling the parent method without super() and missing the instance.

Use super().speak() to call the parent method inside the child method.

4fill in blank

hard

Fill both blanks to create a child class that inherits and extends the parent class method.

Python

class Vehicle:
    def description(self):
        return "Vehicle"

class Car([1]):
    def description(self):
        return super().[2]() + " - Car"

Drag options to blanks, or click blank then click option'

AVehicle

Bdescription

Cdesc

DCar

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong parent class name.

Calling a method name that does not exist in the parent.

The class Car inherits from Vehicle, and calls the parent's description method using super().description().

5fill in blank

hard

Fill all three blanks to create a child class that inherits attributes and overrides a method using the parent method.

Python

class Person:
    def __init__(self, name):
        self.name = name
    def greet(self):
        return f"Hello, I am {self.name}"

class Student([1]):
    def __init__(self, name, student_id):
        [2](name)
        self.student_id = student_id
    def greet(self):
        return [3]() + f", my student ID is {self.student_id}"

Drag options to blanks, or click blank then click option'

APerson

Bsuper().__init__

Csuper().greet

Dself.__init__

Attempts:

3 left

💡 Hint

Common Mistakes

Calling self.__init__ instead of super().__init__.

Not calling the parent constructor at all.

Not using super() to call the parent method in greet.

The Student class inherits from Person. It calls the parent constructor with super().__init__(name) and extends the greet method by calling super().greet().