How to return return before the execution of the loop inside the function is completed?

Question

Python

There is a function.
In it, a loop with sleep () pauses
after the loop should be returned with a string for example.
How, when calling a function, to immediately get the return value without waiting for the end of the loop, and the loop would continue its work in the background?

Answer 1

Use a generator :

def f(x):
    for x in range(x):
        print('Hi!')
        yield x

for i in f(10):
    print(i)

Answer 2

well, you master Celery))
delay()