Python Coding challenge - Day 646| What is the output of the following Python Code?

 

Code Explanation:

1. Generator Function Definition

def gen():

    for i in range(3):

        yield i*i

def gen():

Defines a generator function named gen.

for i in range(3):

A loop that iterates i from 0 to 2 (i.e., 0, 1, 2).

yield i*i

This pauses the function and produces the square of i.

Unlike return, yield allows the function to resume where it left off. This makes gen() a generator.

2. Creating a Generator Object

g = gen()

Calling gen() doesn't run it immediately.

It returns a generator object g, which is an iterator that will compute values on demand using yield.

3. First Call to next(g)

print(next(g))

Starts executing the gen() function.

i = 0, so it yields 0*0 = 0.

Output: 0

4. Second Call to next(g)

print(next(g))

Resumes where it left off in gen().

Now i = 1, so it yields 1*1 = 1.

Output: 1

5. Resetting the Generator

g = gen()

A new generator object is created and assigned to g.

The previous state of the original g is discarded.

Now this new g starts again from the beginning.

6. Third Call to next(g)

print(next(g))

Executes the new generator from the start.

i = 0 again, so it yields 0*0 = 0.

Output: 0

Final Output

0

1

0

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