Python Coding challenge - Day 367| What is the output of the following Python Code?

 

Explanation:

Function Definition (countdown(n)):

The function countdown(n) is a generator because it contains the yield statement.

A generator function produces a sequence of values lazily, meaning values are generated on-demand instead of all at once.

While Loop (while n > 0):

The function keeps running as long as n > 0.

Inside the loop, yield n returns the current value of n and pauses execution.

The n -= 1 statement decreases n by 1 in each iteration.

Calling the Generator (gen = countdown(3)):

This does not execute the function immediately. Instead, it creates a generator object.

Converting Generator to List (print(list(gen))):

The list(gen) forces the generator to produce all its values and store them in a list.

When list() iterates over gen, it calls next(gen) repeatedly until the generator is exhausted.

Output:

[3, 2, 1]