Write to msg objects from python code

[corndog2000]

I know that the msg object can be read from the python code. But, I cannot find information whether writing to msg[] objects updates that object in the node-red flow.

[404background]

Thank you @corndog2000 for your comments on the issue!

In the node, Python is executed and its output is passed to msg.payload.
This node is not implemented to pass to any property other than msg.payload.
Writing to the msg[] object does not update that object in the node-red flow.

The following is implemented in node/venv.js.

msg.payload = stdoutData
send(msg)

For more information on sending messages, see the following page.
https://nodered.org/docs/creating-nodes/node-js#sending-messages

For now, it is possible to output data in JSON format as follows.

However, it is passed to msg.payload.

Here is the flow.

[{"id":"b192eeb5e97d7214","type":"venv","z":"d6fad9e77ecc8414","venvconfig":"4657b6fbdbaf6f7e","name":"","code":"import json\n\ndef create_json_response():\n    data = {\n        \"payload\": msg['timestamp'],\n        \"message\": \"hello\",\n        \"number\": 100,\n    }\n    return json.dumps(data)\n\n\njson_response = create_json_response()\nprint(json_response)\n","continuous":false,"x":690,"y":2720,"wires":[["82484c9b086e3bf5","bf06d2df025c1dfa"]]},{"id":"945ebeb20fb9b18a","type":"inject","z":"d6fad9e77ecc8414","name":"","props":[{"p":"payload"},{"p":"timestamp","v":"","vt":"date"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"{\"message\":\"hello\",\"number\":100}","payloadType":"json","x":550,"y":2720,"wires":[["b192eeb5e97d7214"]]},{"id":"82484c9b086e3bf5","type":"debug","z":"d6fad9e77ecc8414","name":"debug 183","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":850,"y":2720,"wires":[]},{"id":"bf06d2df025c1dfa","type":"json","z":"d6fad9e77ecc8414","name":"","property":"payload","action":"obj","pretty":false,"x":590,"y":2800,"wires":[["b93d26177e6fb93b"]]},{"id":"b93d26177e6fb93b","type":"debug","z":"d6fad9e77ecc8414","name":"debug 184","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":750,"y":2800,"wires":[]},{"id":"4657b6fbdbaf6f7e","type":"venv-config","venvname":"pyenv","version":"default"}]