Python Coding challenge - Day 1089| What is the output of the following Python Code?

 

Code Explanation:

1️⃣ Importing the Module

import threading

Explanation

Imports Python’s threading module.

This module allows execution of multiple threads simultaneously.

2️⃣ Defining the Function

def task(n):

Explanation

A function named task is defined.

It takes one argument n.

Each thread will call this function with a different value.

3️⃣ Printing the Value

print(n)

Explanation

This prints the value passed to the function.

Each thread will print its own number.

4️⃣ Loop Creation

for i in range(3):

Explanation

Loop runs 3 times.

Values of i will be:

0, 1, 2

5️⃣ Creating and Starting Threads

threading.Thread(target=task, args=(i)).start()

Explanation (VERY IMPORTANT ⚠️)

✔ Thread Creation

threading.Thread(...) creates a new thread.

target=task → thread will run task() function.

❌ Mistake in Arguments

args=(i) is NOT a tuple.

Python treats (i) as just an integer, not a tuple.

👉 Correct tuple should be:

args=(i,)

⚠️ What Happens Due to Mistake?

Thread expects arguments as an iterable (tuple/list).

But (i) is an int, not iterable.

So Python raises an error.

❌ Runtime Error

TypeError: 'int' object is not iterable

Final Output:

Error

400 Days Python Coding Challenges with Explanation