multiprocessing gives AssertionError: daemonic processes are not allowed to have children

Question

I am trying to use multiprocessing for the first time. So I thought I would make a very simple test example which factors 100 different numbers.

from multipr         


        

Answer 1

I came here because my unittest raises

AssertionError: daemonic processes are not allowed to have children

This is because I have used multiprocessing and I did not close and join the pool properly, after close and join everything is fine now.