Python Coding challenge - Day 648| What is the output of the following Python Code?

 

Code Explanation:

1. Function Definition: infinite()

def infinite():

This defines a generator function named infinite.

It doesn't take any arguments.

Unlike a regular function that returns once, a generator uses yield to produce a sequence of values lazily—one at a time.

2. Initialize a Counter Variable

    i = 0

Inside the function, i is initialized to 0.

This will be the starting value of the infinite sequence being generated.

3. Infinite Loop

    while True:

This creates an infinite loop.

True is always true, so the loop will never stop unless the program is interrupted.

4. Yield the Current Value of i

        yield i

This pauses the function and sends the current value of i to the caller.

Unlike return, yield doesn’t terminate the function; it pauses it and remembers the state.

The next time the generator is resumed, execution continues right after yield.

5. Increment the Counter

        i += 1

After yielding, i is increased by 1.

So the next time the loop runs, it will yield the next number in sequence.

6. Create the Generator Object

g = infinite()

Here, the generator function infinite() is called, but it doesn’t execute immediately.

Instead, it returns a generator object stored in the variable g.

This object can be used to fetch values using next().

7. Loop to Get First 3 Values

for _ in range(3):

    print(next(g))

This loop runs 3 times (i.e., _ takes values 0, 1, 2 but the _ means we don’t care about the loop variable).

On each iteration:

next(g) resumes the generator and returns the next value from it.

That value is printed.

Output of the Code

0

1

2

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