How to find the logs of ipykernel？

[jishan7]

Help Please I wanted to debug the kernel errors but I count not found the logs from ipykernel, is there a log switch need to knock on? How to modify the settings or code of ipykernel ?

[jishan7]

ps: version 6.9.1

[davidbrochart]

For instance: jupyter lab --debug.

[jishan7]

thanks for answer But I think I need a normal way to record the ipykernel logs only in an online service. I found too much outputs when I added --debug .

[davidbrochart]

I think you can configure the logging of the IPKernelApp.

[jishan7]

I think you can configure the logging of the IPKernelApp.

thanks , I'm reading the document and try.

[jishan7]

I have a question. I open the debug mode , but count not saw the log from ipykernel, I count not found the INFO level log also, such as line 300 in kernelapp.py ： self.log.info("Starting the kernel at pid: %i", os.getpid())

Can you give me a simple example to print the ipykernel log? (not in jupyterlab , it's too complex)