code: def cowsay_output(message):
      
      command = 'cowsay "%s"' % message
      ret = subprocess.Popen(
          command, shell=True, stdin=subprocess.PIPE,
          stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
      output, error = ret.communicate()
      return output, error
docs: Invoke a shell command to print cowsay output. Primary replacement for
      os.system calls.