Unable to link Jupyter notebook to correct kernel
A while ago I installed sage version 9.1 on my MacBook Pro running MacOS Mojave 10.14.6. That installation was from binary and was made in the MacOS Applications folder. Today I tried to install sage version 9.4, compiling from source. The install was in a subfolder of my user folder. The install seems fine, and I am able to run sage 9.4 from the command line.
Now I am trying to run 9.4 in a Jupiter notebook. After typing
sage ./sage -n jupyter
or
sage ./sage -n jupyterlab
in the root directory of my new installation things start well—the following banner comes up in the terminal,
enter code here
┌────────────────────────────────────────────────┐
│ SageMath version 9.4, Release Date: 2021-08-22 │
│ Using Python 3.9.5. Type "help()" for help. │
└────────────────────────────────────────────────┘
Please wait while the Jupyterlab server starts...
[I 18:26:42.688 LabApp] JupyterLab extension loaded from /Users/williamorrick2/sage- 9.4/local/lib/python3.9/site-packages/jupyterlab
[I 18:26:42.688 LabApp] JupyterLab application directory is /Users/williamorrick2/sage-9.4/local/share/jupyter/lab
[I 18:26:42.694 LabApp] Serving notebooks from local directory: /Users/williamorrick2/sage-9.4
[I 18:26:42.694 LabApp] Jupyter Notebook 6.1.1 is running at:
[I 18:26:42.694 LabApp] http://localhost:8888/?token=ba7dda9e8563ac920c9dd6ae2ab402980df04273ce90c616
[I 18:26:42.694 LabApp] or http://127.0.0.1:8888/?token=ba7dda9e8563ac920c9dd6ae2ab402980df04273ce90c616
[I 18:26:42.694 LabApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 18:26:42.704 LabApp]
To access the notebook, open this file in a browser:
file:///Users/williamorrick2/Library/Jupyter/runtime/nbserver-2218-open.html
Or copy and paste one of these URLs:
http://localhost:8888/?token=ba7dda9e8563ac920c9dd6ae2ab402980df04273ce90c616
or http://127.0.0.1:8888/?token=ba7dda9e8563ac920c9dd6ae2ab402980df04273ce90c616
[I 18:26:45.498 LabApp] Build is up to date
[I 18:26:45.750 LabApp] Kernel started: 8500f3e9-4730-4c6d-8363-5686721acc8e, name: sagemath
—but when the notebook opens (either in Jupyter notebook or in Jupyterlab) the kernel is sage 9.1 rather than 9.4. Furthermore I am unable to execute any code. In the terminal, immediately following the lines quoted above, I get a bunch of messages like
> /Applications/SageMath-9.1.app/Contents/Resources/sage/local/bin/sage: line 619: /Users/williamorrick2/sage-9.4/local/bin/python2: No such file or directory
which suggest that Jupyter is running the old kernel in the Applications folder, and that it is looking for python2 under my new installation, which only contains python3.
How do I go about correcting this?
