Python Coding challenge - Day 610| What is the output of the following Python Code?

 

Code Explanation:

1. Function Definition

def outer():

This defines a generator function called outer().

2. Outer Loop

    for i in range(2):

A for loop that runs twice, with i taking values: 0 and 1.

3. yield from with a Generator Expression

        yield from (j for j in range(2))

This line uses:

A generator expression: (j for j in range(2)), which yields 0 and 1.

yield from passes each value from the inner generator to the outer generator transparently.

So, for each i, it yields: 0, 1.

4. Calling outer() and Converting to a List

print(list(outer()))

Calls the generator outer(), which yields values as described.

Converts the result into a list using list(...).

Then prints the final list.

How It Executes Step by Step

First loop iteration (i = 0):

yield from (0, 1) → yields: 0, 1

Second loop iteration (i = 1):

yield from (0, 1) again → yields: 0, 1

So, total sequence:

0, 1, 0, 1

Final Output

[0, 1, 0, 1]

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