Python Coding challenge - Day 1057| What is the output of the following Python Code?

 

Code Explanation:

1. Defining Class A

class A:

Creates a base class named A

Inherits from object by default

🔹 2. Defining Constructor of A

def __init__(self):

    print("A")

__init__ is the constructor

Runs when an object of A is created

Prints "A"

📌 Important:

This constructor runs only if it is explicitly called.

🔹 3. Defining Class B (Inheritance)

class B(A):

B inherits from class A

So B has access to methods of A

But inheritance does not automatically call constructors

🔹 4. Defining Constructor of B

def __init__(self):

    print("B")

B overrides the constructor of A

This constructor replaces A.__init__ for objects of B

Prints "B"

🔹 5. Creating an Object of B

B()

What happens internally:

Python creates an object of class B

Looks for __init__ in B

Finds B.__init__

Executes it

Prints "B"

Stops (does NOT call A.__init__)

📌 A.__init__ is never called here.

✅ Final Output

B

500 Days Python Coding Challenges with Explanation