Better documentation around using different python versions for different modules

Documentation

As far as I can tell from the docs/google searches/looking through github issues, there isn't guidance on the standard or simplest ways to run mypy in a monorepo of sorts where different directories are on different python versions. I was hoping I could use the python_version config option, but it seems like that can only be set on a global level.

I guess one workaround would be replacing calls like mypy . with a series of calls running over specific directories with their specific python versions, but I was wondering if there is a less cumbersome approach.

Esamina la documentazione e i riferimenti esistenti per l’opzione di configurazione python_version, quindi confrontali con il caso d’uso monorepo e per directory descritto nell’issue. Il lavoro è completato quando viene documentato l’approccio standard o più semplice supportato per verificare versioni diverse di Python tra i moduli, inclusi gli eventuali esempi necessari di comandi o configurazione.