Following the installation instructions leads to:

```ModuleNotFoundError: No module named 'jupyter_core'``` Miloc (talk) 11:45, 7 February 2026 (UTC)

Both jupyterlab and jupyter-notebook depend on python-jupyter-core which provides the module. What exactly did you install and run? — Lahwaacz (talk) 10:26, 1 March 2026 (UTC)