Python API to parse binary file which contains protobuf data in array format

[Silpa Ks]

Hi,

I'm facing problem in parsing binary file containing protobuf data in array format. When I used the python API, ParseFromString  output was always zero or none. The serialized protobuf data in the binary file was generated using C++ API, SerializeToArray. But to parse the bin file, I want to use python for parsing. But in python I couldn't find any API to parse serialized protobuf data as array in binary file. Is there any python API to resolve this issue? Can anyone please suggest a solution for this?

[Roozbeh]

Hi,

I am having a similar issue! Did you figure out how to resolve this?

[Mac Pham]

[Mac Pham]

  From C++ I used SerializeToString 

 Ex:

 string output;

 response->SerializeToString(&output);

 In python:

 if I use UDP to receive it , I use PBWrapper.FromString(message[0]) where message contains data I received from UDP socket

 For TCP just use PBWrapper.FromString(message)

And it worked for me.

-Tom

On Monday, May 7, 2018 at 2:26:07 AM UTC-7, Silpa Ks wrote:

[Roozbeh]

Thank you for your reply. I am trying to load saved data. I use the following script but it is empty after I run it:

import example_pb2

with open('saved_data.protobin','rb') as f:
    data = f.read()

msg = example_pb2.Sensor()
msg.ParseFromString(data) # or msg.FromString(data)

Do you know what I'm doing wrong?