prctl_example.py

#!/usr/bin/env python3

from multiprocessing import Process
from ctypes import CDLL
import sys
import os

libc = CDLL("libc.so.6")
prctl = libc.prctl

def f(name):
    print('hello', name)
    prctl(22, 1, 0)
    print("some other text")
    with open('some-file.txt', 'w') as f:
        f.write("Hallo")
    print("wrote text file")
    a = 7


if __name__ == '__main__':
    p = Process(target=f, args=('bob',))
    p.start()
    p.join()
    print(p.exitcode)