code: def sigterm_handler(signum, stack_frame):
      
      # pylint: disable-msg=W0613
      global _KILLED
  
      for name, cmd in _COMMANDS.iteritems():
          if cmd.at_stop:
              LOG.info("at_stop: %r", name)
              cmd.at_stop()
  
      _KILLED = True
  
      if _HTTP_SERVER:
          _HTTP_SERVER.kill()
          _HTTP_SERVER.server_close()
docs: Just tell the server to exit.
  
      WARNING: There are race conditions, for example with TimeoutSocket.accept.
      We don't care: the user can just rekill the process after like 1 sec. if
      the first kill did not work.