Deprecated type hints

[tanguyMichardiere]

According to PEP 585, type hints such as typing.List or typing.Callable (among others) are deprecated and should be replaced with list and collections.abc.Callable respectively.

The PEP states:
"The deprecated functionality may eventually be removed from the typing module. Removal will occur no sooner than Python 3.9’s end of life, scheduled for October 2025", which means Starlette may cause errors under Python 3.14 in a few months.

As Starlette requires Python >=3.9, replacing these type hints would not be a breaking change, as far as I understand.

Ruff's UP006 rule could help migrating.

[Kludex]

Most of our imports are import typing instead of from typing import ..., and that rule doesn't help on that. 😢