code: def stop_event_loop(self, event=None):
          
          if hasattr(self,'_event_loop'):
              if self._event_loop.IsRunning():
                  self._event_loop.Exit()
              del self._event_loop
docs: Stop an event loop.  This is used to stop a blocking event
          loop so that interactive functions, such as ginput and
          waitforbuttonpress, can wait for events.
  
          Call signature::
  
          stop_event_loop_default(self)