#!/usr/bin/env python
import signal
import os
def main():
signal.signal(signal.SIGTERM, signal.SIG_DFL)
signal.signal(signal.SIGUSR1, signal.SIG_DFL)
signal.signal(signal.SIGUSR2, signal.SIG_DFL)
os.system("sleep 100")
if __name__ == "__main__":
main()
