code: def write_packet(sock, data, already_pickled=False):
      
      if already_pickled:
          sent_data = data
      else:
          sent_data = pickle.dumps(data, PICKLE_HIGHEST_PROTOCOL)
      sent_data = struct.pack("l", len(sent_data)) + sent_data
      nsend = len(sent_data)
      while nsend > 0:
          nsend -= temp_fail_retry(socket.error, sock.send, sent_data)
docs: Write *data* to socket *sock*