No kernels installed

[mafudge]

Description

Reproduce

1. Fork and deploy this repo
2. Deploy the site
3. Go to the site url
4. Marvel in the lack of any kernels being installed.

Expected behavior

Kernels should be installed

Context

Maybe I'm doing something wrong, if so instructions are unclear.

• JupyterLite version:
• Operating System and version:
• Browser and version:

Browser Output

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[jtpio]

@mafudge do you have an example repo where this issue is happening?

[2xB]

@jtpio This happens to me on this very repository. I've just cloned this repository and run (under Fedora 41, without venv):

python -m pip install -r requirements.txt
jupyter lite build --contents content --output-dir dist
jupyter lite serve --output-dir dist

This issue seems to be identical to jupyterlite/jupyterlite#1453 and jupyterlite/pyodide-kernel#125 .

[jtpio]

without venv

Maybe that's why the kernel is not picked up Would you be able to try in a virtual environment?

[2xB]

Yes, in a venv it works correctly.

[2xB]

My issue is fixed with the just opened pull request jupyterlite/jupyterlite#1583 . @mafudge , if possible could you verify that? Otherwise we observed different issues.