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Re: some progress matlab-kernel, a python path problem?

From: John Kitchin
Subject: Re: some progress matlab-kernel, a python path problem?
Date: Wed, 16 Jun 2021 12:05:03 -0400

I would see if you can open a jupyter notebook and start a notebook with the mat lab kernel. If not, it either isn’t installed, or maybe is installed in a different jupyter. 

If you get errors here, the issue is outside of org mode. For example, the hylang kernel quit working for me a while ago. 

https://github.com/Calysto/matlab_kernel#kernel-times-out-while-starting for some troubleshooting tips. 

On Wed, Jun 16, 2021 at 11:48 AM Uwe Brauer <oub@mat.ucm.es> wrote:


So I switched from finks python 3.7 to MacOS 3.8
I think I set all paths (mac does not locate them in
HOME/.local but in

However when I fire up the org-babel command the iphthon console reads

| Traceback (most recent call last):
|   File "/Users/oub/Library/Python/3.8/bin/jupyter-console", line 10, in <module>
|     sys.exit(main())
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_core/application.py", line 254, in launch_instance
|     return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/traitlets/config/application.py", line 844, in launch_instance
|     app.initialize(argv)
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/traitlets/config/application.py", line 87, in inner
|     return method(app, *args, **kwargs)
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_console/app.py", line 136, in initialize
|     self.init_shell()
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_console/app.py", line 103, in init_shell
|     JupyterConsoleApp.initialize(self)
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_client/consoleapp.py", line 343, in initialize
|     self.init_kernel_manager()
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_client/consoleapp.py", line 295, in init_kernel_manager
|     self.kernel_manager.start_kernel(**kwargs)
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_client/manager.py", line 337, in start_kernel
|     kernel_cmd, kw = self.pre_start_kernel(**kw)
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_client/manager.py", line 292, in pre_start_kernel
|     kernel_cmd = self.format_kernel_cmd(extra_arguments=extra_arguments)
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_client/manager.py", line 210, in format_kernel_cmd
|     cmd = self.kernel_spec.argv + extra_arguments
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_client/manager.py", line 114, in kernel_spec
|     self._kernel_spec = self.kernel_spec_manager.get_kernel_spec(self.kernel_name)
|   File "/Users/oub/Library/Python/3.8/lib/python/site-packages/jupyter_client/kernelspec.py", line 230, in get_kernel_spec
|     raise NoSuchKernel(kernel_name)
| jupyter_client.kernelspec.NoSuchKernel: No such kernel named matlab
| Process kernel-matlab exited abnormally with code 1

But the matlab_kernel is installed

I am puzzled, any python guru could enlighten me please?


Uwe Brauer


Professor John Kitchin (he/him/his)
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213

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