code: def handle_expt_event(self):
      # handle_expt_event() is called if there might be an error on the
      # socket, or if there is OOB data
      # check for the error condition first
      err = self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR)
      if err != 0:
          # we can get here when select.select() says that there is an
          # exceptional condition on the socket
          # since there is an error, we'll go ahead and close the socket
          # like we would in a subclassed handle_read() that received no
          # data
          self.handle_close()
      else:
          self.handle_expt()
  
imports: import select
  import socket
  import sys
  import time
  import warnings
  import os
  from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, EINVAL, ENOTCONN, ESHUTDOWN, EISCONN, EBADF, ECONNABORTED, EPIPE, EAGAIN, errorcode
label_desc: Use image node_id 22 for calling the dispatcher obj's underlying member method code with example usage: obj.handle_expt_event() without return types