Python Object-Oriented Programming (OOP) Exercise: Classes and Objects Exercises

Updated on: April 17, 2025 | 55 Comments

This Object-Oriented Programming (OOP) exercise aims to help you to learn and practice OOP concepts. All questions are tested on Python 3.

Python Object-oriented programming (OOP) is based on the concept of “objects,” which can contain data and code: data in the form of instance variables (often known as attributes or properties), and code, in the form method. I.e., Using OOP, we encapsulate related properties and behaviors into individual objects.

What is included in this Python OOP exercise?

This OOP classes and objects exercise includes 10 coding questions, programs, and challenges. All solutions are tested on Python 3.

This exercise covers questions on the following topics:

Class and Object creation
Instance variables and Methods, and Class level attributes
Model systems with class inheritance i.e., inherit From Other Classes
Parent Classes and Child Classes
Extend the functionality of Parent Classes using Child class
Object checking

When you complete each question, you will become more familiar with Object-Oriented Programming. Please let us know if you have any alternative solutions; it will help other developers.

Use Online Code Editor to solve exercise questions.

Refer:

OOP Exercise 1: Create a Class with instance attributes

Write a Python program to create a Vehicle class with max_speed and mileage instance attributes.

Refer:

Show Solution

class Vehicle:
    def __init__(self, max_speed, mileage):
        self.max_speed = max_speed
        self.mileage = mileage

modelX = Vehicle(240, 18)
print(modelX.max_speed, modelX.mileage)Code language: Python (python)

OOP Exercise 2: Create a Vehicle class without any variables and methods

Show Solution

class Vehicle:
    passCode language: Python (python)

OOP Exercise 3: Create a child class Bus that will inherit all of the variables and methods of the Vehicle class

Given:

class Vehicle:

    def __init__(self, name, max_speed, mileage):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileageCode language: Python (python)

Create a Bus object that will inherit all of the variables and methods of the parent Vehicle class and display it.

Expected Output:

Vehicle Name: School Volvo Speed: 180 Mileage: 12

Refer: Inheritance in Python

Show Solution

class Vehicle:

    def __init__(self, name, max_speed, mileage):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileage

class Bus(Vehicle):
    pass

School_bus = Bus("School Volvo", 180, 12)
print("Vehicle Name:", School_bus.name, "Speed:", School_bus.max_speed, "Mileage:", School_bus.mileage)Code language: Python (python)

OOP Exercise 4: Class Inheritance

Given:

Create a Bus class that inherits from the Vehicle class. Give the capacity argument of Bus.seating_capacity() a default value of 50.

Use the following code for your parent Vehicle class.

class Vehicle:
    def __init__(self, name, max_speed, mileage):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileage

    def seating_capacity(self, capacity):
        return f"The seating capacity of a {self.name} is {capacity} passengers"Code language: Python (python)

Expected Output:

The seating capacity of a bus is 50 passengers

Refer:

Show Hint

First, use method overriding.
Next, use default method argument in the seating_capacity() method definition of a bus class.

Show Solution

class Vehicle:
    def __init__(self, name, max_speed, mileage):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileage

    def seating_capacity(self, capacity):
        return f"The seating capacity of a {self.name} is {capacity} passengers"

class Bus(Vehicle):
    # assign default value to capacity
    def seating_capacity(self, capacity=50):
        return super().seating_capacity(capacity=50)

School_bus = Bus("School Volvo", 180, 12)
print(School_bus.seating_capacity())Code language: Python (python)

OOP Exercise 5: Define a property that must have the same value for every class instance (object)

Define a class attribute”color” with a default value white. I.e., Every Vehicle should be white.

Use the following code for this exercise.

class Vehicle:

    def __init__(self, name, max_speed, mileage):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileage

class Bus(Vehicle):
    pass

class Car(Vehicle):
    passCode language: Python (python)

Expected Output:

Color: White, Vehicle name: School Volvo, Speed: 180, Mileage: 12
Color: White, Vehicle name: Audi Q5, Speed: 240, Mileage: 18

Refer: Class Variable in Python

Show Hint

Define a color as a class variable in a Vehicle class

Show Solution

Variables created in __init__() are called instance variables. An instance variable’s value is specific to a particular instance of the class. For example, in the solution, all Vehicle objects have a name and a max_speed, but the values of the name and max_speed variables will vary depending on the Vehicle instance.

On the other hand, a class variable is shared between all class instances. You can define a class attribute by assigning a value to a variable name outside of __init__().

class Vehicle:
    # Class attribute
    color = "White"

    def __init__(self, name, max_speed, mileage):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileage

class Bus(Vehicle):
    pass

class Car(Vehicle):
    pass

School_bus = Bus("School Volvo", 180, 12)
print(School_bus.color, School_bus.name, "Speed:", School_bus.max_speed, "Mileage:", School_bus.mileage)

car = Car("Audi Q5", 240, 18)
print(car.color, car.name, "Speed:", car.max_speed, "Mileage:", car.mileage)Code language: Python (python)

OOP Exercise 6: Class Inheritance

Given:

Create a Bus child class that inherits from the Vehicle class. The default fare charge for any vehicle is its seating capacity multiplied by 100 (seating capacity * 100).

If the vehicle is a Bus instance, we need to add an extra 10% to the full fare as a maintenance charge. Therefore, the total fare for a Bus instance will be the final amount, calculated as total fare plus 10% of the total fare. (final amount = total fare + 10% of the total fare.)

Note: The bus seating capacity is 50, so the final fare amount should be 5500.

Use the following code for your parent Vehicle class. We need to access the parent class from within a method of a child class.

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self):
        return self.capacity * 100

class Bus(Vehicle):
    pass

School_bus = Bus("School Volvo", 12, 50)
print("Total Bus fare is:", School_bus.fare())Code language: Python (python)

Expected Output:

Total Bus fare is: 5500.0

Show Hint

You need to override the fare() method of the Vehicle class in the Bus class.
Use super() function within a child class to call methods of a parent (or super) class.

Method overriding lets a subclass provide its own version of a method that its superclass already has. It allows the subclass to customize or specialize the behavior inherited from the superclass.

Show Solution

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self):
        return self.capacity * 100

class Bus(Vehicle):
    def fare(self):
        amount = super().fare()
        amount += amount * 10 / 100
        return amount

School_bus = Bus("School Volvo", 12, 50)
print("Total Bus fare is:", School_bus.fare())Code language: Python (python)

OOP Exercise 7: Check type of an object

Write a program to determine which class a given Bus object belongs to.

Given:

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

class Bus(Vehicle):
    pass

School_bus = Bus("School Volvo", 12, 50)Code language: Python (python)

Show Hint

Use Python’s built-in function type().

Show Solution

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

class Bus(Vehicle):
    pass

School_bus = Bus("School Volvo", 12, 50)

# Python's built-in type()
print(type(School_bus))Code language: Python (python)

OOP Exercise 8: Determine if School_bus is also an instance of the Vehicle class

Given:

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

class Bus(Vehicle):
    pass

School_bus = Bus("School Volvo", 12, 50)Code language: Python (python)

Show Hint

Use isinstance() function

Show Solution

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

class Bus(Vehicle):
    pass

School_bus = Bus("School Volvo", 12, 50)

# Python's built-in isinstance() function
print(isinstance(School_bus, Vehicle))Code language: Python (python)

OOP Exercise 9: Check object is a subclass of a particular class

Given:

class Animal:
    pass

class Dog(Animal):
    pass

class Puppy(Dog):
    pass

class Cat:
    passCode language: Python (python)

Write a code to check the following

Dog is a subclass of Animal? –> True
Animal is a subclass of Dog? –> False
Cat is a subclass of Animal? –> False
Puppy is a subclass of Animal –> True

Show Hint

Use the issubclass() function. The issubclass(potential_subclass, potential_superclass) returns True if the first argument is a subclass (or the same class) of the second argument, and False otherwise.

Show Solution

class Animal:
    pass

class Dog(Animal):
    pass

class Puppy(Dog):
    pass

class Cat:
    pass

print(issubclass(Dog, Animal))   # Output: True  (Dog is a subclass of Animal)
print(issubclass(Animal, Dog))   # Output: False (Animal is not a subclass of Dog)
print(issubclass(Cat, Animal))    # Output: False (Cat is not related to Animal)
print(issubclass(Puppy, Animal)) # Output: True (Puppy inherits from Dog, which inherits from Animal)Code language: Python (python)

OOP Exercise 10: Calculate the area of different shapes using OOP

Given:

You have given a Shape class and subclasses Circle and Square. The parent class (Shape) has a area() method.

Now, Write a OOP code to calculate the area of each shapes (each subclass must write its own implementation of area() method to calculates its area).

Use the following code

class Shape:
    def area(self):
        raise NotImplementedError("Area method must be implemented by subclasses")

class Circle(Shape):
    def __init__(self, radius):
        self.radius = radius

class Square(Shape):
    def __init__(self, side):
        self.side = side

# Example of polymorphism
shapes = [Circle(5), Square(7), Circle(3)]

for shape in shapes:
    print(shape.area())  # Output: 78.53975, 49, 28.27431Code language: Python (python)

Refer:

Show Hint

Use Method Overloading.
The core idea is that the same method name can have different implementations depending on the class of the object.

Polymorphism lets you treat objects of different classes in a uniform way. Imagine you have a Shape class, and then you have subclasses like Circle, Square, and Triangle. Each of these shapes has an area() method, but the way you calculate the area is different for each shape.

Show Solution

class Shape:
    def area(self):
        raise NotImplementedError("Area method must be implemented by subclasses")

class Circle(Shape):
    def __init__(self, radius):
        self.radius = radius

    def area(self):  # Overriding the area method
        return 3.14159 * self.radius**2

class Square(Shape):
    def __init__(self, side):
        self.side = side

    def area(self):  # Overriding the area method
        return self.side * self.side

# Example of polymorphism
shapes = [Circle(5), Square(7), Circle(3)]

for shape in shapes:
    print(shape.area())  # Output: 78.53975, 49, 28.27431Code language: Python (python)

Also, See: Python OOP Interview Questions

Comments

Aisha says

December 4, 2025 at 5:49 pm

Thank you for putting this together and sharing. It’s a really helpful practice/revision exercise, and I learnt new things.

Reply
otwjunior says

June 19, 2025 at 1:26 pm

thanks man for the assistance you make me understand oop

Reply
Dan says

August 15, 2024 at 4:33 pm

Moving way too fast. By the time i got to 5, i forgot how to do 1.

Reply
Alija Rai says

May 6, 2024 at 1:25 pm

Thank you Vishal sir, for providing the exercises, As a beginner these exercises have helped us a lot.

Reply
Kavindu says

August 19, 2023 at 3:45 pm

class Vehicle:
def __init__(self, max_speed, mileage):
self.max_speed = max_speed
self.mileage = mileage

def seating_capacity(self, capacity):
return f”The seating capacity of a {self.name} is {capacity} passenger”

class Vehicle:
def __init__(self, name, max_speed, mileage):
self.name = name
self.max_speed = max_speed
self.mileage = mileage

def seating_capacity(self, capacity):
return f”The seating capacity of a {self.name} is {capacity} passengers”

class Bus(Vehicle):
# assign default value to capacity
def seating_capacity(self, capacity=50):
return super().seating_capacity(capacity=50)

class Vehicle:
# Class attribute
colour = “White”

def __init__(self, name, max_speed, mileage):
self.name = name
self.max_speed = max_speed
self.mileage = mileage

class Bus(Vehicle):
pass

class Car(Vehicle):
pass

School_bus = Bus(“School Volvo”, 180, 12)
print(School_bus.colour, School_bus.name, “Speed:”, School_bus.max_speed, “Mileage:”, School_bus.mileage)

car = Car(“Audi Q5”, 180, 18)
print(car.colour, car.name, “Speed:”, car.max_speed, “Mileage:”, car.mileage)

class Vehicle:
def __init__(self, name, mileage, capacity):
self.name = name
self.mileage = mileage
self.capacity = capacity

def fare(self):
return self.capacity * 100

class Bus(Vehicle):
def fare(self):
return 1.1*self.capacity*100

School_bus = Bus(“School Volvo”, 12, 50)
print(“Total Bus fare is:”, School_bus.fare())

Reply
Driss Fadal says

August 2, 2023 at 4:14 am

from pyexpat import model

color = “white”
capacity = 1
fare = capacity * 100

class Vehicle:
def __init__(self, name, max_speed, mileage, capacity):
self.max_speed = max_speed
self.mileage = mileage
self.name = name
self.capacity = capacity

def fare(self):
return self.capacity * 100

model1x = Vehicle(“Toyota”, 240, 23000, 5)

class Bus(Vehicle):
def __init__(self, name, max_speed, mileage, capacity):
super().__init__(name, max_speed, mileage, capacity)

def fare(self):
#return Vehicle.fare(self) * 10 / 100 + Vehicle.fare(self) or
amount = super().fare()
amount += amount * 10 / 100
return amount

bus1 = Bus(“daf”, 149, 33000, 50)
# bus_fare = bus1.fare()
# print(f”total bus fare is :${int(bus_fare*(10/100)+bus_fare)}”)

print(bus1.fare())

Reply
Mokhtar Mahmoudian says

March 4, 2023 at 12:06 am

#Exercise 3 class Vehicle: def __init__(self ,Max_speed, Mileage): self.Max_speed = Max_speed self.Mileage = Mileage Bus = Vehicle(180, 12) print("vehicle name : school volvo","\n", "speed : ", Bus.Max_speed,"\n", "Mileage :", Bus.Mileage)

Reply
Adrian says

February 28, 2023 at 10:10 pm

About exercise 4:
in line -> return super().seating_capacity(capacity=50)

I think it should be -> return super().seating_capacity(capacity)

If we set 50 in a method call, then it will be impossible to set different parameters.
For example, if we call:
b = Bus('bus', 80, 1000) print(b.seating_capacity(30)) -> output will be 50

Reply
- Reef says
  
  October 11, 2023 at 1:47 am
  
  Yes indeed. It should be -> return super().seating_capacity(capacity)
  which will allow for setting a value for capacity as in: -> b.seating_capacity(120)
  
  Reply
Dealer says

January 20, 2023 at 7:28 pm

Exercise 7, is this a good practice?

class Vehicle: def __init__(self, name, mileage, capacity): self.name = name self.mileage = mileage self.capacity = capacity
class Bus(Vehicle): @staticmethod def which_class(): return __class__.__name__
School_bus = Bus("School Volvo", 12, 50) print(School_bus.which_class())

Reply
- ayoub says
  
  January 22, 2023 at 11:21 pm
  
  Write a function to calculate resistance and capacitance (i.e. the function takes current and voltage as data and returns resistance and capacitance)
  Solve it
  
  Reply
  - Utkarsh Dadaso Salunkhe says
    
    February 23, 2023 at 9:55 pm
    
    class circuit:
    def __init__(self,voltage,current): self.voltage=voltage self.current= current def resistance(self): return self.voltage/ self.current def capacitance(self): return self.voltage/(self.current * 2 * 3.14159265359 ) a= circuit(20,9)
    r=a.resistance() c= a.capacitance()
    
    print(f”resistance is {r} ohms and capacitance is {c} f.”)
    
    Reply
Dealer says

January 20, 2023 at 6:58 pm

Exercise 5 without a class variable, only with instance variable:

class Vehicle: def __init__(self, name, max_speed, mileage): self.color = "White" self.name = name self.max_speed = max_speed self.mileage = mileage
def __str__(self): return f"Color: {self.color}, Vehicle name: {self.name}, Speed: {self.max_speed}, Mileage: {self.mileage}" class Bus(Vehicle): pass class Car(Vehicle): pass
bus = Bus("School Volvo", 180, 12) car = Car("Audi Q5", 240, 18) print(bus) print(car)

Reply
LUQMAN HAQIM says

November 13, 2022 at 9:24 pm

Kindly check and see if I would encounter any problems using this approach.

class vehicle:
color="white" def __init__(self,name,max_speed,mileage,capacity): self.name=name self.max_speed=max_speed self.milage=mileage self.capacity=capacity def fare(self): fare= self.capacity*100 totalFare= fare + (10/100*fare) return totalFare def desc_vehicle(self): print(f"Color:{self.color} Vehicle Name: {self.name} Speed:{self.max_speed} Mileage: {self.milage} ") class bus(vehicle): pass
class car(vehicle): pass

Reply
- Karan says
  
  January 6, 2023 at 12:18 pm
  
  class vehicle: color="white" def __init__(self,name,max_speed,mileage,capacity): self.name=name self.max_speed=max_speed self.milage=mileage self.capacity=capacity def fare(self): fare= self.capacity*100 totalFare= fare + (10/100*fare) return totalFare
  def desc_vehicle(self): print(self.capacity,"is capacity",self.name,"is name",self.max_speed,"speed",self.milage, "milage",self.capacity, "capacity") class bus(vehicle): pass class car(vehicle): pass
  a=car(80,"ko",64,32) a.desc_vehicle()
  
  Reply

Ankit Shukla says

September 20, 2022 at 12:37 pm

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self):
        return self.capacity * 100

class Bus(Vehicle):
    def __init__(self, name, mileage, capacity = 50):
        super().__init__(name, mileage, capacity)
        
    def fare(self):
        fare = super().fare()
        # this is bus so we need to add an extra 10% on full fare as a maintenance charge
        total_fare = fare + (fare*0.10)
        return total_fare
        

School_bus = Bus("School Volvo", 12)
print("Total Bus fare is:", School_bus.fare())

Ankit Shukla says

September 20, 2022 at 12:35 pm

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self):
        return self.capacity * 100

class Bus(Vehicle):
    def __init__(self, name, mileage, capacity = 50):
        super().__init__(name, mileage, capacity)
        
    def fare(self):
        fare = super().fare()
        # this is bus so we need to add an extra 10% on full fare as a maintenance charge
        total_fare = fare + (fare*0.10)
        return total_fare
        

School_bus = Bus("School Volvo", 12)
print("Total Bus fare is:", School_bus.fare())

Sherrif says

December 4, 2022 at 4:36 pm

This is good approach, clean code, good practice.

Reply

Sunny says

July 28, 2022 at 5:14 pm

class Vehicle:
    color='white'
    def __init__(self, name='', max_speed='', mileage=''):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileage
    def seatingcapacity(self):
        print('seating capacity of {} is {}'.format(self.name,self.capacity))
    def display(self):
        print('Vehicle Name:{}'.format(self.name),
             'Max Speed:{}'.format(self.max_speed),
             'Mileage:{}'.format(self.mileage),
             'Color:{}'.format(self.color))
    def fare(self):
        print("The fare for {} is {}".format(self.name, int(self.capacity)*100))
    
    def belongs(self):
        print(self.__class__.__name__)
    
    def checkins(self):
        print('Instance of Vehicle:{}'.format(isinstance(self,Vehicle)))

class Bus(Vehicle):

    def __init__(self,capacity='',**kwargs):
        self.capacity=capacity
        super().__init__(**kwargs)
    def fare(self):
        print("The fare for {} is {}".format(self.name, int(self.capacity)*100 + int((int(self.capacity)*100)//10)))

class Car(Vehicle):

    def __init__(self,capacity='',**kwargs):
        self.capacity=capacity
        super().__init__(**kwargs)

# Example Input:
a={'name':'Volvo',
  'max_speed':30,
  'mileage':40,
  'capacity':100}
b={'name':'Volkswagon',
  'max_speed':50,
  'mileage':100,
  'capacity':30}
c=Bus(**a)
d=Car(**b)
c.display()
c.seatingcapacity()
c.fare()
c.belongs()
c.checkins()
d.display()
d.seatingcapacity()
d.fare()
d.belongs()
d.checkins()

OUTPUT:

Vehicle Name:Volvo Max Speed:30 Mileage:40 Color:white
seating capacity of Volvo is 100
The fare for Volvo is 11000
Bus
Instance of Vehicle:True
Vehicle Name:Volkswagon Max Speed:50 Mileage:100 Color:white
seating capacity of Volkswagon is 30
The fare for Volkswagon is 3000
Car
Instance of Vehicle:True

Fabrizio says

July 7, 2022 at 5:45 pm

An alternative way of doing exercise 6:


class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self, offset=None):
        offset = offset or 0
        return (self.capacity + ((self.capacity*offset)/100)) * 100

class Bus(Vehicle):
    def fare(self):
        return super().fare(10)

School_bus = Bus("School Volvo", 12, 50)
print("Total Bus fare is:", School_bus.fare())

Lawrence says

July 1, 2022 at 12:09 pm
I have this example.6 I was wondering if it is correct too?
```
# 6
class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self):
        return self.capacity * 100

class Bus(Vehicle):
    def fare(self):
        return 1.1*self.capacity*100

School_bus = Bus("School Volvo", 12, 50)
print("Total Bus fare is:", School_bus.fare())
```
Reply
- avi says
  
  July 6, 2022 at 7:13 pm
  this solution is not good because :
  in the question, we are asked to add 10% to the total fare which comes from the superclass Vehicle, so when you do
  return 1.1*self.capacity*100
  the total is not based on Vehicle and if I change 100 in Vehicle, it will not change in Bus
  you need to use super() so that the Total is taken from Vehicle, and then you add the 10%
  you can do something like
```
class Bus(Vehicle):
    def fare(self):
        return super().fare() * 1.1
```
  this will allways use the total from Vehicle and add 10% , so if we change the 100 in Vehicle, it will calculate the 10% based on the new total.
  
  Hope that was clear, sorry if the exemples were not good
  Reply

Hanna Damarjian says

June 29, 2022 at 1:10 am

Exercise 6 Alternative Code:

class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self):
        return self.capacity * 100

class Bus(Vehicle):
    
    def fare(self):
        return super().fare() + 0.10*super().fare()

School_bus = Bus("School Volvo", 12, 50)
print("Total Bus fare is:", School_bus.fare())

Prashant says

January 6, 2025 at 6:40 am

“return super().fare() + 0.10*super().fare()”, this will call parent method twice, so better we can do with this way..

def fare(self):
orgfare = super().fare()
return (orgfare + orgfare * 0.1)

Reply

Cyrus says

May 12, 2022 at 12:33 am

Will I run into any problems if I just did this for Ex. 4?


class Vehicle:
    def __init__(self, name, max_speed, mileage):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileage
    
    def seating_capacity(self, capacity):
        return f"The seating capacity of a {self.name} is {capacity} passengers"

bus = Vehicle("bus", 0, 0)
bus.seating_capacity(50)

Suraj says

May 20, 2022 at 8:35 pm

Call the function as print(bus.seating_capacity(50))
output:
The seating capacity of a bus is 50 passengers

NO problem!

Reply

Masha says

April 23, 2022 at 1:10 pm

class Vehicale():
    def __init__(self,name,mileage , seat_capacity):
        self.name = name
        self.mileage = mileage
        self.seat_capacity=seat_capacity
    def fare(self):
        return self.seat_capacity *100

is it correct? it does work but ..
class Bus(Vehicale):
    def __init__(self,name,mileage, seat_capacity):
        super().__init__(name,mileage,seat_capacity)
    def fare(self):
        return self.seat_capacity * 100+(self.seat_capacity * 100)*10/100

School_bus = Bus("School Volvo", 12, 50)
print("Total Bus fare is:", School_bus.fare())

abc says

April 20, 2022 at 8:32 am

Thanks a ton for the well-curated structure.

Reply
Daniel says

March 17, 2022 at 5:14 pm
For exercise 6 I don’t know if this is good code, code but it works well!!
```
class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self):
        return self.capacity * 100

class Bus(Vehicle):
    def fare(self):
        return self.capacity * 110

School_bus = Bus("School Volvo", 12, 50)
print("Total Bus fare is:", School_bus.fare())
```
Reply
- Ganymehdi says
  
  April 13, 2022 at 1:06 am
  
  I had the same idea, but I think the key is that since bus fare depends on vehicle fare, if the formula for vehicle changes (while bus remains +10% of vehicle fare) and you need to update your code base, the change propagates without having to modify both classes
  
  Reply
  - Cyrus says
    
    May 13, 2022 at 12:52 am
    Wouldn’t the code used in the solution also change if the Vehicle formula changes? In other words, doesn’t the code below also depend on the vehicle fare because it’s still inheriting the Vehicle’s “fare” instance
    
    class Bus(Vehicle): def fare(self): amount = super().fare() amount += amount * 10 / 100 return amount
    Reply
Nagimesi Khatwiibu Shuaibu says

March 3, 2022 at 9:54 pm

very good codes

Reply
Raji says

March 1, 2022 at 5:08 pm

Very useful. I started learning python. please let me know if you have more excercise like this. Thanks for your effort.

Reply
Suraj Thapa says

January 31, 2022 at 5:02 am

Thank you very much.

Reply
Jitendra chandra says

December 29, 2021 at 8:39 am

Thanks a lot Brother !

Reply
Lilit Grigoryan says

November 11, 2021 at 3:16 pm

Thank’s a lot, I enjoyed the tasks.

Reply
- Vishal says
  
  November 14, 2021 at 11:09 am
  
  You’re welcome, Lilit.
  
  Reply
  - Saikiran Tangudu says
    
    December 30, 2021 at 11:28 am
    
    HI Vishal please post more questions on oops
    
    Reply
knotJ says

October 18, 2021 at 8:14 pm

Thanks. learnt lots

Reply

Jokunsoo says

July 9, 2021 at 5:28 pm

found a cleaner method for exercise 7


class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity
    def qclass(self):
        objclass=str(type(self))
        method,clss=objclass.split(".")
        objclassclean=clss.replace("'>",'')
        print (objclassclean)
                

class Bus(Vehicle):
    pass

School_bus = Bus("School Volvo", 12, 50)
Transit_bus = Vehicle("Tesla van", 12000, 2)

Transit_bus.qclass()

Abhay Kumar Mishra says

May 19, 2021 at 4:02 pm

Ans_3:

class Vehicle:

    def __init__(self, name, max_speed, mileage):
        self.name = name
        self.max_speed = max_speed
        self.mileage = mileage
class Bus(Vehicle):

    def __init__(self,name,max_speed, mileage):
        super().__init__(name,max_speed,mileage)
    def bus_info(self):
        return f'school bus {self.name} maxspeed:{self.max_speed} mileage: {self.mileage}'


school_bus = Bus('Volvo',180,12)
print(school_bus.bus_info())

Mr. Lulz says

April 26, 2021 at 4:22 am

This was a fun exercise!

Reply
vish says

April 19, 2021 at 3:11 pm

That was interesting overview.. I am searching more though for oop…

Thanks for support…

Reply
dhruv says

April 14, 2021 at 6:14 pm

thank you vishal sir it’s very help me

Reply
- Vishal says
  
  April 16, 2021 at 7:54 pm
  
  I am glad it helped you, Dhruv.
  
  Reply
Etra Arte says

March 19, 2021 at 12:13 am

Thank you very much Vishal, it’s a very instructive challenge

Reply
- Vishal says
  
  March 21, 2021 at 11:25 am
  
  I am glad it helped you.
  
  Reply
Emmanuel Bett says

February 15, 2021 at 11:17 pm

thank you…Awesome learning experience

Reply

Lamhamdi says

January 31, 2021 at 11:04 pm

Exercise Question 6: Class Inheritance


class Vehicle:
    def __init__(self, name, mileage, capacity):
        self.name = name
        self.mileage = mileage
        self.capacity = capacity

    def fare(self):
        return self.capacity * 100


class Bus(Vehicle):

    def fare(self):
        return super().fare() + self.capacity * 10


School_bus = Bus("School Volvo", 12, 100)
print(f"Total {School_bus.name} fare is:", School_bus.fare())

Paul says

January 21, 2021 at 5:27 am
In question 4, shouldn’t it be:
```
class Bus(Vehicle):
    def seating_capacity(self, capacity=50):
        return super().seating_capacity(capacity=capacity)
```
so that the capacity provided when, say, School_bus.seating_capacity(60) is called would get passed to the super().seating_capacity()
Reply
- Mohit says
  
  May 21, 2021 at 12:19 pm
  
  correct Paul ,
  
  Reply
Ryan says

December 11, 2020 at 11:49 pm

Exercise Question 6:

The help text states that outcome should be 5550.0 but the solution code and expected output are both 5500.0.

Reply
- Vishal says
  
  December 12, 2020 at 6:29 pm
  
  Hey Ryan, Thank you for noticing the typing mistake. Now, I have fixed the typing mistake.
  
  Reply
DMS KARUNARATNE says

September 17, 2020 at 12:45 pm

Exercise Question 8: Determine if Bus is also an instance of the Vehicle class
need correction: Determine if School_bus is also an instance of the Vehicle class?

Reply
- Vishal says
  
  September 17, 2020 at 7:49 pm
  
  Thank you for your correction.
  
  Reply

Python Object-Oriented Programming (OOP) Exercise: Classes and Objects Exercises

Table of contents

OOP Exercise 1: Create a Class with instance attributes

OOP Exercise 2: Create a Vehicle class without any variables and methods

OOP Exercise 3: Create a child class Bus that will inherit all of the variables and methods of the Vehicle class

OOP Exercise 4: Class Inheritance

OOP Exercise 5: Define a property that must have the same value for every class instance (object)

OOP Exercise 6: Class Inheritance

OOP Exercise 7: Check type of an object

OOP Exercise 8: Determine if School_bus is also an instance of the Vehicle class

OOP Exercise 9: Check object is a subclass of a particular class

OOP Exercise 10: Calculate the area of different shapes using OOP

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Table of contents

OOP Exercise 1: Create a Class with instance attributes

OOP Exercise 2: Create a Vehicle class without any variables and methods

OOP Exercise 3: Create a child class Bus that will inherit all of the variables and methods of the Vehicle class

OOP Exercise 4: Class Inheritance

OOP Exercise 5: Define a property that must have the same value for every class instance (object)

OOP Exercise 6: Class Inheritance

OOP Exercise 7: Check type of an object

OOP Exercise 8: Determine if School_bus is also an instance of the Vehicle class

OOP Exercise 9: Check object is a subclass of a particular class

OOP Exercise 10: Calculate the area of different shapes using OOP

About Vishal

Related Tutorial Topics:

All Coding Exercises:

Python Exercises and Quizzes

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