Fix tests for ipykernel without debugpy

[frenzymadness]

It is supported by ipykernel to run it without debugpy installed
but it produces warnings informing about disabled debugging.
Those warnings should not cause tests of nbclient to fail.

See: https://github.com/ipython/ipykernel/blob/1ba6b48a97877ff7a564af32c531618efb7d2a57/ipykernel/ipkernel.py#L36

[SylvainCorlay]

I am fine with this change, although still a bit unsure of how much the code base should take into account that some package managers remove a dependency.

[frenzymadness]

The pre-commit check complains about a file I haven't touched here. Also, the failure of 3.9 on macos seems unrelated.

I am fine with this change, although still a bit unsure of how much the code base should take into account that some package managers remove a dependency.

I understand. In Fedora, we are running tests in RPM build and because we ship ipykernel without debugpy, the tests are failing. We can either fix it here or on the RPM level and because the fix is easy and might be useful also for other warnings/errors in the future, I've proposed it.

[davidbrochart]

The pre-commit check complains about a file I haven't touched here.

Fixed.

Also, the failure of 3.9 on macos seems unrelated.

Yes, it's unrelated.

[frenzymadness]

Could this be merged? Or can I do something to move it forward?

[davidbrochart]

Thanks!

[SylvainCorlay]

@frenzymadness would you consider packaging debugpy on fedora, so that eventually everything is maintained.

[frenzymadness]

@frenzymadness would you consider packaging debugpy on fedora, so that eventually everything is maintained.

I've tried that but the package is very complex and at that time it had only partial support for Python 3.10. I'll definitely try it once again soon.