Pip Install Packages in Jupyter extension when using unsupported shells on windows

[DonJayamanne]

Refs: #8325

• windows @joaomoreno
• windows @rzhao271

Complexity: 3

Authors: @DonJayamanne

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• Install Python
• Install Python & Jupyter Extension
• Ensure you have a shell other than Command Prompt & Powershell (e.g. WSL or GitBash)
• Locate Python executable
  • Ensure you are using a globally installed version of Python.
  • Do not use Conda, Virtual env, Pyenv or Poetry or the like (if you don't know what that is, then you're doing the right thing)
• Ensure ipykernel is not installed in the above Python environment
  • Open a command prompt and run the following command:
  • python -m pip uninstall ipykernel -y
• Go into VSCode
• Change the shell to WSL or Gitbash
• Create a new Jupyter notebook (file extension .ipynb)
• Ensure you select the Global Python enviornment identified earlier
  • Use the kernel picker (top right of the Notebook UI, or the command Notebook: Select Notebook Kernel) to pick the right python environment.
• Add a cell with the code print("hello") and hit run
  • Verify you are prompted to install IPyKernel
• Click Install in the prompt to install ipykernel
  • Verify you get a progress message indicating the fact that ipykernel is being installed
• Verify you can run cells & get output (i.e. verify ipykernel was installed successfully)

[joaomoreno]

Fantastic test plan item, everything was perfectly detailed! 👏

Works as expected.