Python Practice Problems

Python practice problems help beginners to become experts in a python programming language with a small amount of practice effort.

Method overriding

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Python Practice › OOP Programs › Program 14

Method overriding

EasyOOP Programs · 14 of 48

Write a Python program that demonstrates method overriding.

Output
Sending: Hi
Sending: Hi (via email)

Approach

  1. The child defines a method with the same name; super() reuses the parent’s version.

Solution

Python
class Notification:    def send(self, msg):        return f"Sending: {msg}" class EmailNotification(Notification):    def send(self, msg):        return super().send(msg) + " (via email)" print(Notification().send("Hi"))print(EmailNotification().send("Hi"))
Output
Sending: Hi
Sending: Hi (via email)

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Method overloading

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Python Practice › OOP Programs › Program 13

Method overloading

MediumOOP Programs · 13 of 48

Write a Python program that shows how to achieve method overloading.

Output
5
9
0

Approach

  1. Python keeps only the last method with a given name, so use default and variable arguments instead.

Solution

Python
class Calculator:    def add(self, *numbers):        return sum(numbers) c = Calculator()print(c.add(2, 3))print(c.add(2, 3, 4))print(c.add())
Output
5
9
0

Line by line

Line 2

*numbers accepts any number of arguments, so one method covers every case.

Tip

functools.singledispatchmethod can choose a method by the type of the first argument when the behaviour must differ by type.

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Hierarchical inheritance

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Python Practice › OOP Programs › Program 12

Hierarchical inheritance

EasyOOP Programs · 12 of 48

Write a Python program that demonstrates hierarchical inheritance.

Output
I am a Square
I am a Circle

Approach

  1. Several children share one parent.

Solution

Python
class Shape:    def describe(self):        return f"I am a {type(self).__name__}" class Square(Shape):    pass class Circle(Shape):    pass for s in [Square(), Circle()]:    print(s.describe())
Output
I am a Square
I am a Circle

Line by line

Line 3

type(self) is the actual child class, so the shared method gives a different answer for each.

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Multilevel inheritance

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Python Practice › OOP Programs › Program 11

Multilevel inheritance

EasyOOP Programs · 11 of 48

Write a Python program that demonstrates multilevel inheritance.

Output
4 petrol 300

Approach

  1. A grandchild inherits from a child, which inherits from a parent.

Solution

Python
class Vehicle:    def wheels(self):        return 4 class Car(Vehicle):    def fuel(self):        return "petrol" class SportsCar(Car):    def speed(self):        return 300 s = SportsCar()print(s.wheels(), s.fuel(), s.speed())
Output
4 petrol 300

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Multiple inheritance

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Python Practice › OOP Programs › Program 10

Multiple inheritance

EasyOOP Programs · 10 of 48

Write a Python program that demonstrates multiple inheritance.

Output
photo taken | calling
['SmartPhone', 'Camera', 'Phone', 'object']

Approach

  1. A class inherits from two parents; the MRO decides lookup order.

Solution

Python
class Camera:    def photo(self):        return "photo taken" class Phone:    def call(self):        return "calling" class SmartPhone(Camera, Phone):    pass s = SmartPhone()print(s.photo(), "|", s.call())print([c.__name__ for c in SmartPhone.__mro__])
Output
photo taken | calling
['SmartPhone', 'Camera', 'Phone', 'object']

Line by line

Line 13

The method resolution order shows Python searches SmartPhone, then Camera, then Phone.

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Single inheritance

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Python Practice › OOP Programs › Program 9

Single inheritance

EasyOOP Programs · 9 of 48

Write a Python program that demonstrates single inheritance.

Output
eating and barking

Approach

  1. The child class lists one parent class in brackets.

Solution

Python
class Animal:    def eat(self):        return "eating" class Dog(Animal):    def bark(self):        return "barking" d = Dog()print(d.eat(), "and", d.bark())
Output
eating and barking

Line by line

Line 5

Dog(Animal) gives Dog everything Animal has.

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Create objects under if __name__ == “__main__”

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Python Practice › OOP Programs › Program 8

Create objects under if __name__ == "__main__"

EasyOOP Programs · 8 of 48

Write a Python class and create its object inside the if __name__ == "__main__": block.

Output
Hello, SQA Tools

Approach

  1. Code in that block runs only when the file is executed directly, not when imported.

Solution

Python
class Greeter:    def __init__(self, name):        self.name = name     def greet(self):        return f"Hello, {self.name}"  if __name__ == "__main__":    g = Greeter("SQA Tools")    print(g.greet())
Output
Hello, SQA Tools

Line by line

Lines 9-11

Another file can import Greeter without creating this demo object.

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Class and module name

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Python Practice › OOP Programs › Program 7

Class and module name

EasyOOP Programs · 7 of 48

Write a Python program to get an object’s class name and module name.

Output
Product
__main__

Approach

  1. type(obj).__name__ and __module__.

Solution

Python
class Product:    pass p = Product()print(type(p).__name__)print(Product.__module__)
Output
Product
__main__

Line by line

Line 6

The module is __main__ because the class is defined in the script being run.

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Class method

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Python Practice › OOP Programs › Program 6

Class method

EasyOOP Programs · 6 of 48

Write a Python class with a class method used as an alternative constructor.

Output
2 11 2026

Approach

  1. @classmethod receives the class as cls.

Solution

Python
class Date:    def __init__(self, day, month, year):        self.day, self.month, self.year = day, month, year     @classmethod    def from_string(cls, text):        day, month, year = map(int, text.split("-"))        return cls(day, month, year) d = Date.from_string("02-11-2026")print(d.day, d.month, d.year)
Output
2 11 2026

Line by line

Lines 5-8

from_string parses text and calls cls(...), so subclasses get objects of their own type.

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Static method

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Python Practice › OOP Programs › Program 5

Static method

EasyOOP Programs · 5 of 48

Write a Python class with a static method.

Output
True False

Approach

  1. @staticmethod needs no self; it is a helper grouped with the class.

Solution

Python
class MathUtils:    @staticmethod    def is_even(n):        return n % 2 == 0 print(MathUtils.is_even(10), MathUtils.is_even(7))
Output
True False

Line by line

Lines 2-4

The method uses only its arguments, so it does not need an object.

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