Python signal

import signal
import time
import os
import sys

def handle_int(sig, frame):
    print("get signal: {}".format(sig))
    sys.exit(0)


if __name__ == "__main__":
    signal.signal(signal.SIGRTMIN + 0, handle_int)
    print("The pid is {}".format(os.getpid()))
    while True:
        time.sleep(3)

Link to C