Python Coding challenge - Day 840| What is the output of the following Python Code?

 

Code Explanation:

Import the dataclass decorator

from dataclasses import dataclass

Imports the @dataclass decorator from Python’s dataclasses module.

@dataclass automatically generates useful methods like:

__init__() → constructor

__repr__() → string representation

Define the Product dataclass

@dataclass

class Product:

Declares a class Product as a dataclass.

Dataclasses are useful for storing data with minimal boilerplate.

Declare class fields

    price: int

    qty: int

These are the two attributes of the class:

price → the price of the product

qty → the quantity of the product

With @dataclass, Python automatically creates an __init__ method that initializes these fields.

Create objects and perform calculation

print(Product(9, 7).price * 2 + Product(9, 7).qty)

Product(9, 7) → Creates a Product object with price = 9 and qty = 7.

.price * 2 → 9 * 2 = 18

+ Product(9, 7).qty → 18 + 7 = 25

print() → Outputs 25.

Final Output

25

600 Days Python Coding Challenges with Explanation