#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import os

print("Process (%s) start..." % os.getpid())
# Only works on Unix/Linux/macOS:
pid = os.fork()
if pid == 0:
    print("I am child process (%s) and my parent is %s." % (os.getpid(), os.getppid()))
else:
    print("I (%s) just created a child process (%s)." % (os.getpid(), pid))