_CField as a generic descriptor protocol

[junkmd]

Please see #10567

[junkmd]

Should I consider adding workarounds for the error that raises when combining stubs/pyserial/serial/win32.pyi with Pyright?

For example, using something like _CField[Any, Any, Any].

[junkmd]

Should I consider adding workarounds for the error that raises when combining stubs/pyserial/serial/win32.pyi with Pyright?

For example, using something like _CField[Any, Any, Any].

I added workarounds.

[srittau]

Thanks! I assume many of the _CField[Any, Any, Any] annotations could be improved in the future? In that case, please use Incomplete (from _typeshed) instead of Any to mark that fact.

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

AutoSplit (https://github.com/Toufool/AutoSplit)
+ src/utils.py:104:26: error: Redundant cast to "int" [redundant-cast]+ src/utils.py:105:25: error: Redundant cast to "int" [redundant-cast]+ src/utils.py:106:20: error: Redundant cast to "int" [redundant-cast]+ src/utils.py:107:21: error: Redundant cast to "int" [redundant-cast]

[junkmd]

@srittau

It's good catch. Thank you.

please use Incomplete (from _typeshed) instead of Any to mark

I did that.

[srittau]

My ctypes knowledge is limited, but this looks like an improvement to me and primer output also looks good.