导入和多处理，代码不等待进程完成

Question

I'm trying to learn to use the multiprocessing module. Something rather strange is happening. The process I spawn doesn't finish, the script just finishes instantly.

from time import sleep
from x import a, b, c
import multiprocessing as mp
import sys

def s():
    sleep(5)

if __name__ == '__main__':
    p = mp.Process(target = s)
    p.start()
    p.join()

Instead of sleeping for 5s, the code just finishes. If I comment out the import it sleeps.

The x contains functions a, b, c, imports from math and a global variable. So looks something like this:

from math import sin,cos
g = 9.81
def a():
    ...
def b():
    ...
def c():
    ...

I haven't grasped the import logic properly, but I can't seem to figure out what is wrong, just makes no sense to me. I'm definitely not running any code in x.

Answer 1

Seems that spyder doesn't handle multiprocessing well. I didn't think it was important, I was trying to run the code inside spyders iPython console. More info:

https://stackoverflow.com/a/48099756/11325544