Panel logger default level not working

[aditya3434]

It seems like the panel logger default level set to DEBUG. Shouldn't the default level be set to WARNING? Additionally, even though the level is set to DEBUG, it doesn't actually log the statements in the terminal.

Reproducer

app.py

import panel as pn
pn.extension()
import logging

logger = logging.getLogger('panel')

print(logger)                                ## Prints '<Logger panel (DEBUG)>'
print(logger.getEffectiveLevel())            ## Prints 10 (value of debug level)

button = pn.widgets.Button(name="Click me!")
slider = pn.widgets.IntSlider(start=0, end=10, value=5)

app = pn.Row(button, slider)

app.servable()

panel serve command

panel serve app.py

Expected behaviour

Show debug logs in terminal on button clicks and moving sliders

Actual behaviour

No debug logs show

[MarcSkovMadsen]

+1. We also need a how-to guide on logging.

[singharpit94]

Hi, any updates here?

[MarcSkovMadsen]

+1. We also need a how-to guide on logging.

I've contributed a how-to guide on logging. It's in the main branch and can be viewed at https://holoviz-dev.github.io/panel/how_to/configure_logging.html before Panel 1.4.0 release.

It might not solve this issue though.

[mhorlacher]

@MarcSkovMadsen The link is dead.

[MarcSkovMadsen]

The guide has been released and can be found at https://panel.holoviz.org/how_to/logging/index.html.