Does not work in VS Code Jupyter notebook

[han-steve]

Describe the bug
While Pyright works perfectly in .py files, it doesn't activate in a jupyter notebook. Most online searches point me to setting "python.languageServer": "Pylance", but I don't have Pylance since I'm running on an open source build.

Code or Screenshots
Open a jupyter notebook and type

import math
math.sqrt()

Hover over sqrt to show doc string, nothing happens. However, using pyLance with the MS VS Code, it works.

VS Code extension or command-line
Using VS Code extension. Running on code server.

[erictraut]

Pyright is working as intended here, so this isn't a bug.

Pyright is an open-source type checker. It offers some basic language server features like hover text, completion suggestions, signature help, semantic replace, go to definition, find references, and a handful of additional features. If you want more advanced language server features like support for notebooks, semantic highlighting, refactoring, indexing, etc., those are features that pylance adds on top of pyright. As you've noted, pylance is licensed to run only on VS Code, not on other editors like VS Codium, neovim, emacs, etc.