Release 2.6.1 fails on import on Python < 3.8 w/o typing extensions

[amacf]

If you import platformdirs on python < 3.8, it now fails with release 2.6.1 unless you have the typing-extensions package already installed.

I think the issue is this change in release 2.6.1: 2.6.0...2.6.1#diff-e6813e0402941ad4943c8261f1ecfe5e1f9ccd55cb009b996fd785f3637fc7c2

I would suggest it should be:

from typing import TYPE_CHECKING

if TYPE_CHECKING:
    if sys.version_info >= (3, 8):  # pragma: no cover (py38+)
        from typing import Literal
    else:  # pragma: no cover (py38+)
        from typing_extensions import Literal

Alternatively, typing_extensions should be added as a dependency