new_contents: import curses
  import random
  
  def bounce(stdscr):
      curses.curs_set(0)
      height, width = stdscr.getmaxyx()
      ypos, xpos = random.randrange(0, height - 1), random.randrange(0, width - 1)
      ydir, xdir = 1, 1
      stdscr.addstr(height//2, width//2, "Type a character")
      stdscr.nodelay(1)
      c = None
      while True:
          c = get_chr(stdscr) or c
          if not c:
              continue
          stdscr.clear()
          if ypos in {0, height - 1}:
              ydir *= -1
          if xpos in {0, width - 1}:
              xdir *= -1
          ypos += ydir
          xpos += xdir
          stdscr.addstr(ypos, xpos, c)
          curses.delay_output(50)
          stdscr.refresh()
  
  
  def get_chr(stdscr):
      try:
          c = stdscr.getkey()
      except curses.error:
          return None
      if c == 'q':
          exit(0)
      return c
  
  curses.wrapper(bounce)
  
subject: Add a bouncing character example