raise minimum python version to 3.8 and drop typing_extensions

[nekopsykose]

typing.Literal was in python 3.8, so there isn't a need for this dependency on anything newer

[nekopsykose]

ah, mypy requires the specific Literal for itself..

[nekopsykose]

explicit seems to work instead

[davidhewitt]

Given that setuptools now requires 3.8, I'd also be ok with doing the same here to simplify things.

[nekopsykose]

hm, that also works. sure

[davidhewitt]

Thanks, looks like two final things needed here please:

• Remove 3.7 jobs from .github/workflows/ci.yml.
• Add a Packaging entry to the CHANGELOG (e.g. see release notes for 1.2 where we dropped 3.6 support).

[nekopsykose]

good catch, thanks :)

[davidhewitt]

Perfect, thanks 👍