Python Coding challenge - Day 1311| What is the output of the following Python Code?

 

Code Explanation:

1. Defining the Generator Function

def process():

- Defines a generator function named process().

- A generator function uses the yield keyword to produce values one at a time.

- It remembers its execution state between function calls.

2. Yielding the First Value

x = yield 10

- The function pauses and produces the value 10.

- Execution stops temporarily at the yield statement.

- When a value is sent using send(), that value is assigned to variable x.

3. Yielding the Second Value

y = yield x + 5

- Calculates x + 5.

- Produces the calculated value and pauses again.

- The next value sent using send() is assigned to variable y.

4. Yielding the Final Value

yield y * 2

- Multiplies the value of y by 2.

- Produces the final result.

- The generator pauses after yielding this value.

5. Creating the Generator Object

g = process()

- Calls the generator function.

- Creates a generator object and stores it in g.

- The function body does not execute immediately.

- Execution begins when next() or send() is called.

6. Executing the First Generator Step

print(next(g))

- Starts the generator execution.

- The first yield produces 10.

- The generator pauses at x = yield 10.

- Output is 10.

7. Sending a Value into the Generator

print(g.send(20))

- Sends 20 into the paused generator.

- The value 20 is assigned to x.

- Python calculates x + 5, which is 25.

- The second yield produces 25.

- The generator pauses again.

8. Sending Another Value into the Generator

print(g.send(7))

- Sends 7 into the paused generator.

- The value 7 is assigned to y.

- Python calculates y * 2, which is 14.

- The final yield produces 14.

Understanding Generator Execution

Operation Value sent Output

next(g) — 10

g.send(20) 20 25

g.send(7) 7 14

Final Output

Correct Output

10 25 14

Books: 400 Days Python Coding Challenges with Explanation