Python Coding challenge - Day 831| What is the output of the following Python Code?

 

Code Explanation:

1. Importing dataclass

from dataclasses import dataclass

Explanation:

Imports the dataclass decorator from Python’s dataclasses module.

@dataclass helps automatically generate methods like __init__, __repr__, etc.

2. Creating a Data Class

@dataclass

class Item:

Explanation:

@dataclass tells Python to treat Item as a dataclass.

Python will auto-generate an initializer and other useful methods.

3. Declaring Attributes

    name: str

    price: int

    qty: int

Explanation:

These are type-annotated fields.

name → string

price → integer

qty → integer

The dataclass generates an __init__ method using these.

4. Creating an Object

item = Item("Pen", 10, 5)

Explanation:

Creates an instance of Item.

Sets:

name = "Pen"

price = 10

qty = 5

5. Performing Calculation and Printing

print(item.price * item.qty)

Explanation:

Accesses price → 10

Accesses qty → 5

Multiplies: 10 × 5 = 50

Prints 50.

Final Output:

50

700 Days Python Coding Challenges with Explanation