mypy: remove --follow-imports=skip checks

[alexfikl]

This "fixes" the mypy failure on the CI:
https://github.com/inducer/pytools/actions/runs/9630439571/job/26561001591

As far as I can tell, that nice crash was caused by

mypy --strict --follow-imports=skip pytools/persistent_dict.py

and seems to be related to python/mypy#17396. I couldn't find any nicer workaround for it though..

cc @matthiasdiener

[inducer]

Thanks for finding the mypy bug! I was puzzling over how to deal with that. I've cherry-picked one commit and done an alternate fix for the mypy issue in #237. Closing here.

[inducer]

Hm... TIL mypy behaves differently in CI and on my machine? Weird. The "fix" in #237 clearly isn't.

[alexfikl]

Hm... TIL mypy behaves differently in CI and on my machine? Weird. The "fix" in #237 clearly isn't.

mypy caches quite heavily.. Maybe that's why? :\ i.e. a rm -rf .mypy_cache && ./run-mypy.sh might help..

[inducer]

mypy caches quite heavily.. Maybe that's why? :\ i.e. a rm -rf .mypy_cache && ./run-mypy.sh might help..

Tried that! It did not. Super odd.

[alexfikl]

Tried that! It did not. Super odd.

No idea then! For what it's worth, just tried #237 locally and it fails for me like on the CI.