old_contents: import threading
  
  #def main():
  #    print(threading.active_count())
  #    print(threading.enumerate()) # see the thread list
  #    print(threading.current_thread())
  
  def thread_job():
      print('This is a thread of %s' % threading.current_thread())
  
  def main():
      thread = threading.Thread(target=thread_job,)
      thread.start()
  if __name__ == '__main__':
      main()
  
new_contents: # View more python learning tutorial on my Youtube and Youku channel!!!
  
  # Youtube video tutorial: https://www.youtube.com/channel/UCdyjiB5H8Pu7aDTNVXTTpcg
  # Youku video tutorial: http://i.youku.com/pythontutorial
  
  import threading
  
  #def main():
  #    print(threading.active_count())
  #    print(threading.enumerate()) # see the thread list
  #    print(threading.current_thread())
  
  def thread_job():
      print('This is a thread of %s' % threading.current_thread())
  
  def main():
      thread = threading.Thread(target=thread_job,)
      thread.start()
  if __name__ == '__main__':
      main()
  
subject: Update thread2_add_thread.py