code: def busy_display():
      
      sys.stdout.write("\033[?25l")  # cursor off
      sys.stdout.flush()
      for x in range(1800):
          symb = ['\\', '|', '/', '-']
          sys.stdout.write("\033[D{}".format(symb[x % 4]))
          sys.stdout.flush()
          gevent.sleep(0.1)
docs: Display animation to show activity.