Method overriding behavior in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to override the method greet in the subclass.

Python

class Parent:
    def greet(self):
        return "Hello from Parent"

class Child(Parent):
    def greet(self):
        return [1]

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

Agreet()

Bsuper().greet()

C"Hello from Parent"

D"Hello from Child"

Attempts:

3 left

💡 Hint

Common Mistakes

Returning the parent's greet method call instead of a new string.

Calling greet() without self or super().

The Child class overrides the greet method by returning its own string.

2fill in blank

medium

Complete the code to call the parent class method greet inside the overridden method.

Python

class Parent:
    def greet(self):
        return "Hello from Parent"

class Child(Parent):
    def greet(self):
        return [1] + " and Child"

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

Asuper().greet()

B"Hello from Child"

CParent.greet()

Dself.greet()

Attempts:

3 left

💡 Hint

Common Mistakes

Calling self.greet() causes infinite recursion.

Calling Parent.greet() without passing self.

Using super().greet() calls the parent method correctly inside the child method.

3fill in blank

hard

Fix the error in the overridden method to correctly call the parent class method.

Python

class Parent:
    def greet(self):
        return "Hello from Parent"

class Child(Parent):
    def greet(self):
        return Parent.greet([1]) + " and Child"

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

Aself

BChild

Csuper()

Dcls

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the class name instead of the instance.

Using super() inside a direct class method call.

When calling Parent.greet directly, you must pass the instance (self) explicitly.

4fill in blank

hard

Fill both blanks to override describe method and call the parent method inside it.

Python

class Animal:
    def describe(self):
        return "I am an animal"

class Dog(Animal):
    def describe(self):
        return [1] + ", and I am a dog"

obj = Dog()
print(obj.describe())

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

Asuper().describe()

BAnimal.describe(self)

C"I am an animal"

Dself.describe()

Attempts:

3 left

💡 Hint

Common Mistakes

Calling self.describe() causes infinite recursion.

Returning only the dog's string without calling parent.

Using super().describe() calls the parent method; returning the string literal alone is not enough.

5fill in blank

hard

Fill all three blanks to override info method, call parent method, and add extra info.

Python

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

class Car(Vehicle):
    def info(self):
        return [1] + ", model: " + [2] + ", year: " + [3]

car = Car()
print(car.info())

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

Asuper().info()

B"Model X"

C"2024"

Dself.info()

Attempts:

3 left

💡 Hint

Common Mistakes

Calling self.info() causes infinite recursion.

Not calling the parent method at all.

Use super().info() to get parent info, then add model and year strings.