Python OOP Programs with Solutions

48 object-oriented programming exercises: constructors, instance and class variables, class and static methods, every kind of inheritance, overriding, abstract classes, encapsulation, properties and small real-world systems such as bank accounts, carts and courses.

All programs

• #1Class with a constructor
  Write a Python class with a constructor (__init__) that sets the object’s attributes.Easy
• #2Instance variables
  Write a Python class with instance variables and show that each object has its own values.Easy
• #3Instance method
  Write a Python class with an instance method that uses the object’s data.Easy
• #4Class variables
  Write a Python class with a class variable shared by all objects.Easy
• #5Static method
  Write a Python class with a static method.Easy
• #6Class method
  Write a Python class with a class method used as an alternative constructor.Easy
• #7Class and module name
  Write a Python program to get an object’s class name and module name.Easy
• #8Create objects under if __name__ == "__main__"
  Write a Python class and create its object inside the if __name__ == "__main__": block.Easy
• #9Single inheritance
  Write a Python program that demonstrates single inheritance.Easy
• #10Multiple inheritance
  Write a Python program that demonstrates multiple inheritance.Easy
• #11Multilevel inheritance
  Write a Python program that demonstrates multilevel inheritance.Easy
• #12Hierarchical inheritance
  Write a Python program that demonstrates hierarchical inheritance.Easy
• #13Method overloading
  Write a Python program that shows how to achieve method overloading.Medium
• #14Method overriding
  Write a Python program that demonstrates method overriding.Easy
• #15Abstract method
  Write a Python program with an abstract class and an abstract method.Easy
• #16Encapsulation with a private attribute
  Write a Python program that demonstrates encapsulation.Easy
• #17School management system
  Write a small school management system with classes for students and a school.Medium
• #18Employee management system
  Write a small employee management system with add, raise and report features.Medium
• #19Property decorator
  Write a Python class that uses @property for a validated attribute.Easy
• #20Class in a module, imported elsewhere
  Write a Python class in its own module and import it from another script.Easy
• #21Access five classes through one object
  Create 5 classes and access them through a single class object (composition).Easy
• #22Five-level inheritance chain
  Create 5 classes and set up multilevel inheritance among them.Easy
• #23setattr() and getattr()
  Write a Python program that uses setattr() and getattr().Easy
• #24Protected and private members
  Write a Python program showing protected (_x) and private (__x) members.Easy
• #25Rectangle area class
  Write a Python class to calculate the area of a rectangle.Easy
• #26Circle area and circumference
  Create a Circle class with a radius and methods for area and circumference.Easy
• #27Person class
  Create a Person class with name and age and a method to print them.Easy
• #28Student inherits from Person
  Create a Student class that inherits from Person, adds student_id and grades, and prints name, age and id.Easy
• #29Cat inherits from Animal
  Create a Cat class that inherits from Animal (name, colour) and adds breed and weight.Easy
• #30BankAccount class
  Create a BankAccount class with account_number and balance, and methods to deposit and withdraw.Easy
• #31SavingsAccount with interest
  Create SavingsAccount (inherits BankAccount) with interest_rate and minimum_balance, and a method to calculate interest.Easy
• #32CheckingAccount with limit and fee
  Create CheckingAccount (inherits BankAccount) with transaction_limit and transaction_fee; check a withdrawal against the limit and deduct the fee.Medium
• #33Car class
  Create a Car class with make, model and year and a method to print them.Easy
• #34ElectricCar with range
  Create ElectricCar (inherits Car) with battery_size and range_per_charge and a method to calculate the range.Easy
• #35StudentRecord with average grade
  Create StudentRecord with name, age and grades, with methods for the average and a summary.Easy
• #36Course with students
  Create Course with name, teacher and students, with methods to add and remove students and print the course.Easy
• #37Shape with Square and Triangle
  Create a Shape class with an area method and subclasses Square and Triangle.Easy
• #38Employee class
  Create Employee with name and salary and a method to print them.Easy
• #39Manager with bonus
  Create Manager (inherits Employee) with department and bonus, and a method for total compensation.Easy
• #40Customer with deposit and withdraw
  Create Customer with name and balance and methods to deposit and withdraw.Easy
• #41VIPCustomer with credit
  Create VIPCustomer (inherits Customer) with credit_limit and discount_rate, and a method for available credit.Easy
• #42Phone class
  Create Phone with brand, model and storage, with methods to call, text and check storage.Easy
• #43Laptop class
  Create Laptop with brand, model and storage, with methods to start up, shut down and check storage.Easy
• #44Book class
  Create Book with title, author and pages, with getter methods.Easy
• #45EBook with open and close
  Create EBook (inherits Book) with file_size and format, and methods to open and close the book.Easy
• #46ShoppingCart class
  Create ShoppingCart with items and total cost, and methods to add and remove items and calculate the total.Easy
• #47Animal class
  Create Animal with name and colour and a method to print them.Easy
• #48Dog inherits from Animal
  Create Dog (inherits Animal) with breed and weight, and a method to print all details.Easy