Pyenv and Jupyter Notebook Integration

Examples run on MacOS

Add pyenv Environment as Kernel

Running ipython kernel install alone doesn't seem to work for PyEnv.

Do this instead:

1) Activate the environment: $ pyenv activate my-venv

2) Install the kernel with $ ipython kernel install --name "my-venv" --user (This creates a file in ~/Library/Jupyter/kernels/my-env/kernel.json)

3) The created file (on the path above) will probably have the wrong path to the Python executable.¹ Open it and edit it to point to the PyEnv executable:

   {
    "argv": [
     "~/.pyenv/versions/my-venv/bin/python", # <-- HERE
     "-m",
     "ipykernel_launcher",
     "-f",
     "{connection_file}"
    ],
    "display_name": "my-venv",
    "language": "python",
    "metadata": {
     "debugger": true
    }
   }

Troubleshooting: No module named ipykernel_launcher

You need to install ipykernel in the virtualenv you want to use.

References

1: In my case it pointed to a native Python version: /usr/local/opt/python@3.11/bin/python3.11