AttributeError: Assignment not allowed to composite field “task” in protocol message object

Question

I\'m using protocol-buffers python lib to send data,but it\'s have some problems, so

Traceback (most recent call last):
  File \"test_message.py\", line 17,          


        

Answer 1

I'm new to protocol-buffers too and faced with the same problem. I've found this method helpful.

I think it should work:

task = yacc.task()
task.id = 1000
task.msg = u"test"
ptask = yacc.task_info() 
ptask.task.MergeFrom(task)