code: def poll_event(self):
          
          # Flush all inputs before this one that were done since last poll
          curses.flushinp()
  
          ch = self.screen.getch()
  
          if ch == 27:
              return EVENT_ESC
          elif ch == -1 or ch == curses.KEY_RESIZE:
              return EVENT_RESIZE
          elif ch == 10 or ch == curses.KEY_ENTER:
              return EVENT_ENTER
          elif ch == 127 or ch == curses.KEY_BACKSPACE:
              return EVENT_BACKSPACE
          elif ch == curses.KEY_UP:
              return EVENT_UP
          elif ch == curses.KEY_DOWN:
              return EVENT_DOWN
          elif ch == curses.KEY_LEFT:
              return EVENT_LEFT
          elif ch == curses.KEY_RIGHT:
              return EVENT_RIGHT
          elif ch == 3:
              return EVENT_CTRL_C
          elif 0 <= ch < 256:
              return chr(ch)
          else:
              return EVENT_UNHANDLED
docs: Waits for an event to happen and returns a string related to the event.
  
          If the event is a normal (letter) key press, the letter is returned (case sensitive)
  
          :return: Event type