I want to run numerous functions using Pool.map() from the Python multiprocessing module that i can interrupt (for example using ctrl+C ).

I can’t find a way that I can do this and retain the data of already completed function evaluation while skipping the pending results. Whether the currently running processes finish or get terminated is not really important.

I have tried the following when interrupting with KeyboardInterrupt, but output would not be defined in this case.

from multiprocessing import Pool
from time import sleep

def f(i):
    sleep(i)
    return i


with Pool() as p:
    try:
        output = p.map(f, range(10))
    except KeyboardInterrupt:
        p.close()

print(output)