Clarify role of pyrightconfig.json in resolving interpreter

[raulparada]

I spent a good few hours trying to resolve an issue using syntax introduced on python 3.12. The error was:

Function type parameter syntax requires Python 3.12 or newer (Pylance)

I looked absolutely everywhere, e.g.:

• Conflicts pyenv <> Pylance
• VS code settings
• Trace logs from language server, Pylance, etc.
• Bug reports in this repository and in the core Python extension.

...and I was convinced that Pylance was using the wrong interpreter. In the end, it was cause a pyrightconfig.json on the root of my working directory had pythonVersion set to a lower version (3.10). I had forgotten this file even existed, and the naming of things (pyright vs pylance) certainly doesn't help to figure this out.

I think the extension should clearly communicate where a configuration is causing a conflict like this (interpreter on 3.12, config file on 3.10).

Thanks!

[rchiodo]

Transfering to a discussion item for up votes.