Issue starting Kernel on MacOS (argument of type 'NoneType' is not iterable)

[emerzari]

I tried installing this. I was able to launch a new octave notebook, but the kernel keeps failing at launch.

I get this error when doing python3 -m octave_kernel.check. The error is rather non-descriptive.
Has anyone encountered it?

$ python3 -m octave_kernel.check

Octave kernel v0.32.0
Metakernel v0.27.5
Python v3.9.2 (default, Feb 24 2021, 13:26:01)
[Clang 11.0.0 (clang-1100.0.33.17)]
Python path: /usr/local/opt/python@3.9/bin/python3.9

Connecting to Octave...
Octave connection established
argument of type 'NoneType' is not iterable

[dsblank]

It could be that there are no graphics backends installed:

octave_kernel/octave_kernel/check.py

Line 18 in a613c29

toolkits = e.eval('available_graphics_toolkits', silent=True)[8:]

I just leave this hint for now, and perhaps someone can clean up that code a bit, or I can have a look in the next few days.

[Recontech]

Has this problem been solved? I have the same problem:

python -m octave_kernel.check
Octave kernel v0.32.0
Metakernel v0.27.5
Python v3.9.7 | packaged by conda-forge | (default, Sep 29 2021, 19:24:02)
[Clang 11.1.0 ]
Python path: /Users/ben/miniforge3/envs/tensorflow/bin/python

Connecting to Octave...
Octave connection established
argument of type 'NoneType' is not iterable