Publish message in a python node

I want to publish message from python node to another C++ node, like ImageProto and CameraIntrinsicsProto, but it seems that the C++ node cannot receive this message from python. It takes me a long time to solve this problem, but cannot success. Can anybody help me? Great thanks!

You should have no trouble publishing protos in Python codelets to be received by C++ codelets. If you could post a sample code snippets, I might be able to help debug the issue. The first thing to check which can be non-obvious is that there is an edge in the graph between the publisher and the subscriber for the message you are trying to send.