Multiple inheritance syntax in Python - Mini Project: Build & Apply

Multiple Inheritance Syntax in Python

📖 Scenario: Imagine you are creating a simple program to model a vehicle that can both fly and float on water. You want to combine features from two different classes: one for flying and one for floating.

🎯 Goal: You will create two base classes, then create a new class that inherits from both using multiple inheritance syntax. Finally, you will create an object of the new class and print its abilities.

📋 What You'll Learn

Create two base classes named Flyer and Floater.

Each base class should have one method: fly() in Flyer and float() in Floater.

Create a new class named FlyingBoat that inherits from both Flyer and Floater using multiple inheritance syntax.

Create an object of FlyingBoat and call both fly() and float() methods.

Print the outputs of both method calls.

💡 Why This Matters

🌍 Real World

Multiple inheritance helps model objects that share features from different categories, like a flying boat that can both fly and float.

💼 Career

Understanding multiple inheritance is useful in software design to create flexible and reusable code by combining behaviors from multiple classes.

1

Create the base classes

Create two classes named Flyer and Floater. In Flyer, define a method fly() that returns the string "I can fly!". In Floater, define a method float() that returns the string "I can float!".

Python

# Create class Flyer with method fly
# Create class Floater with method float

Need a hint?

Remember to use def to create methods inside classes and return the exact strings.

2

Create the FlyingBoat class with multiple inheritance

Create a class named FlyingBoat that inherits from both Flyer and Floater using multiple inheritance syntax.

Python

class Flyer:
    def fly(self):
        return "I can fly!"

class Floater:
    def float(self):
        return "I can float!"

# Create class FlyingBoat that inherits from Flyer and Floater

Need a hint?

Use parentheses after the class name to list both parent classes separated by a comma.

3

Create an object of FlyingBoat and call methods

Create an object named fb of class FlyingBoat. Call the fly() method on fb and store the result in a variable named fly_result. Call the float() method on fb and store the result in a variable named float_result.

Python

class Flyer:
    def fly(self):
        return "I can fly!"

class Floater:
    def float(self):
        return "I can float!"

class FlyingBoat(Flyer, Floater):
    pass

# Create object fb of FlyingBoat
# Call fly() and float() methods and store results

Need a hint?

Create the object by calling the class name with parentheses. Use dot notation to call methods.

4

Print the results

Print the variables fly_result and float_result each on its own line.

Python

class Flyer:
    def fly(self):
        return "I can fly!"

class Floater:
    def float(self):
        return "I can float!"

class FlyingBoat(Flyer, Floater):
    pass

fb = FlyingBoat()
fly_result = fb.fly()
float_result = fb.float()

# Print fly_result and float_result

Need a hint?

Use two print statements, one for each variable.