print and logging not working in VSCode Jupyter for watched functions

[bertcoerver]

ALL software version info

(this library, plus any other relevant software, e.g. bokeh, python, notebook, OS, browser, etc should be added within the dropdown below.)

Software Version Info

python == 3.12.8
panel == 1.6.0
param == 2.2.0

Jupyter extension VSCode == 2025.1.0
VSCode == 1.97.0 

Python env created with conda from conda-forge.

Description of expected behavior and the observed behavior

A few days ago the below example was working fine for me, I could see the print and/or logging.info messages in the VSCode Jupyter Window. Now messages printed during __init__ still work, but when I print messages during an event callback, the messages don't appear in the Jupyter Window anymore (see the video below).

In the Jupyter Console I'm seeing the following messages:

Unhandled kernel message from a widget: stream : {"name":"stderr","text":"INFO:root:Clicked 1 times.\n"}

Complete, minimal, self-contained example code that reproduces the issue

import param
import logging
import panel as pn
pn.extension()
logging.basicConfig(
    encoding="utf-8",
    level=logging.INFO, 
    force=True
)

class Test(param.Parameterized):

    button = param.Action(default = lambda x: x.param.update(clicks = x.clicks + 1))
    clicks = param.Integer(default = 0)

    def __init__(self, **params):
        logging.info("Initiating")
        print("Initiating")
        super().__init__(**params)

    @param.depends("clicks", watch=True)
    def test(self):
        string = f"Clicked {self.clicks} times."
        logging.info(string)
        print(string)

test = Test()

pn.Row(test.param["button"], test.param["clicks"])

Stack traceback and/or browser JavaScript console output

09:36:48.361 [info] Generated code for 14 = <ipython-input-14-9638e8fa74be> with 29 lines
Unhandled kernel message from a widget: stream : {"name":"stderr","text":"INFO:root:Clicked 1 times.\n"}
Unhandled kernel message from a widget: stream : {"name":"stdout","text":"Clicked 1 times.\n"}

Screenshots or screencasts of the bug in action

Screen.Recording.2025-02-11.at.09.36.47.mov

[bertcoerver]

Just downgraded to VSCode == 1.96.4 and things are back to normal. As in: the messages now show up in the Jupyter Window. I do still see those Unhandled kernel message from a widget: stream : messages as well though...

Now I don't know if this is a "bug" on holoviz side or not.