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Register another version of Ruby #164

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Shekharrajak opened this issue Jan 21, 2019 · 1 comment

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Shekharrajak commented Jan 21, 2019

Hi,

I have registered ruby 2.5.3 version while installation of IRuby.
Let me know how can I change it to 2.5.1 or register another version along with it?

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kojix2 commented Jan 28, 2019 •

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Manual registration:

type jupyter kernelspec list to get the list of available kernels.
IRuby is usually installed in ~/.ipython/kernels/ruby
copy the directory cp -r ~/.ipython/kernels/ruby ~/.ipython/kernels/ruby-2.5.1
open ~/.ipython/kernels/ruby-2.5.1/kerne.json and replace 2.5.3 to 2.5.1

Kernel spec file should be installed in Jupiter directory.
https://jupyter-client.readthedocs.io/en/stable/kernels.html#kernel-specs
However, due to compatibility, or simply old, IRuby saves it in the ~/.ipython directory.

Jupyter team might stop adding .ipython/kernels to the path in the future,
https://github.com/jupyter/jupyter_client/blob/1d807c285ed2ba2c1c05527d21bbe70e16026e3f/jupyter_client/kernelspec.py#L148

iruby register --force does not work when iruby kernel specs are already registered in directories other than ~/.ipython.

kojix2 added the question label

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