Type hints for `pathlib.types`

Feature or enhancement

The pathlib.types module is new in 3.14, and contains a single public class: pathlib.types.PathInfo.

This module also contains a few private classes: _PathParser, _JoinablePath, _ReadablePath and _WritablePath.

As the pathlib.types module is not imported by pathlib, I think we're free to add proper type annotations to the entire module, including the private classes. I think this will help clarify the interface.

I'd like these hints to be compatible with the oldest version of Python still receiving security updates (3.9 at time of writing) because I'm hoping to provide a PyPI package from this module.

Linked PRs

• gh-131639

Inizia esaminando il modulo pathlib.types e la PR collegata gh-131639 per determinare lo stato attuale del lavoro. Verifica come le annotazioni possano rimanere compatibili con Python 3.9 e considera le classi pubbliche e private menzionate nell’issue. Il lavoro è completato quando il modulo dispone di type hint completi e compatibili senza modificare la sua interfaccia prevista.