python_resp.py

$ python message_util.py read resp.bin 
Got wire_message: 00000000120a1048656c6c6f2c206a6f686e20646f6521
Proto Decode: Hello, john doe!


def r(filename):
  f = open(filename, "rb")
  wire_msg = binascii.b2a_hex(f.read())
  f.close()
  print 'Got wire_message: ' + wire_msg
  message_length = wire_msg[4:10]
  msg = wire_msg[10:10+int(message_length, 16)*2]
  r = echo_pb2.EchoReply()
  r.ParseFromString(binascii.a2b_hex(msg))
  print 'Proto Decode: ' + r.message