Jupyter Notebook interaction

Goal: Enable real-time interaction with a Jupyter Notebook by sharing the same kernel between Python code (CLI/script) and the Jupyter Notebook UI.

Use case: Allow a script to interact with variables defined in the Jupyter Notebook interface, and vice versa. Example:

• In the Notebook UI, define a variable: x = 2.
• From Python script/CLI, run a function that executes print(x).
• Expected output: 2 - confirmation that the kernel sharing works.

Attempts: Started Jupyter Lab using collaborative mode (command: jupyter lab --no-browser --IdentityProvider.token=eere --ip=0.0.0.0 --port=14484 --collaborative). Then, execute the code below:

from jupyter_nbmodel_client import NbModelClient, get_jupyter_notebook_websocket_url from jupyter_kernel_client import KernelClient SERVER_URL = "http://localhost:14484" TOKEN = "eere" NOTEBOOK_PATH = "~/Documents/envs/test/kernel_test.ipynb" cell_content = "print(x)" kernel = KernelClient(server_url=SERVER_URL, token=TOKEN) kernel.start() notebook = NbModelClient( get_jupyter_notebook_websocket_url(server_url=SERVER_URL, token=TOKEN, path=NOTEBOOK_PATH) ) await notebook.start() cell_index = notebook.add_code_cell(cell_content) notebook.execute_cell(cell_index, kernel) 

Code output:

Websocket client stopped. Traceback (most recent call last): File "~Documents/envs/test/.really_delete/lib/python3.10/site-packages/jupyter_nbmodel_client/client.py", line 86, in _listen_to_websocket async for message in websocket: File "~Documents/envs/test/.really_delete/lib/python3.10/site-packages/websockets/asyncio/connection.py", line 242, in __aiter__ yield await self.recv() File "~Documents/envs/test/.really_delete/lib/python3.10/site-packages/websockets/asyncio/connection.py", line 322, in recv raise self.protocol.close_exc from self.recv_exc websockets.exceptions.ConnectionClosedError: sent 1002 (protocol error) invalid status code; no close frame received Document ws://localhost:14484/api/collaboration/room/json:notebook:54aee93a-b50f-4190-820f-c5306b218eb8?sessionId=7781e065-b341-4f85-8a56-f4caa4190de6&token=eere not yet synced. {'execution_count': 1, 'outputs': [{'output_type': 'error', 'ename': 'NameError', 'evalue': "name 'x' is not defined", 'traceback': ['\x1b[0;31m---------------------------------------------------------------------------\x1b[0m', '\x1b[0;31mNameError\x1b[0m Traceback (most recent call last)', 'Cell \x1b[0;32mIn[1], line 1\x1b[0m\n\x1b[0;32m----> 1\x1b[0m \x1b[38;5;28mprint\x1b[39m(\x1b[43mx\x1b[49m)\n', "\x1b[0;31mNameError\x1b[0m: name 'x' is not defined"]}], 'status': 'error'} 

After the WS error, the x name is not defined in the above error:

"\x1b[0;31mNameError\x1b[0m: name 'x' is not defined"]}], 

Any help is more than welcome!!