Fix __set__ to __get__ in messages

[ikonst]

We're dealing with the get descriptor here but calling it __set__, probably a copy-paste from similar code elsewhere. I think this only affects messages.

[ikonst]

@sobolevn 👁️

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

[hauntsaninja]

Thanks!

[hauntsaninja]

If you encountered this in real code, want to add your test case?

[ikonst]

If you encountered this in real code, want to add your test case?

TBH, I stumbled on it while reading the code and it threw me off :)

An attempt to reproduce would be contrived:

from typing import Any, TypeVar

T = TypeVar('T')


def decorator(f: T) -> T:
    ...


class Descriptor:
    @decorator
    def __get__(self, *args: Any, **kwargs: Any) -> int:
        ...


class Cls:
    value: Descriptor


var = Cls()
_ = var.value

In this case, plugin get_attribute_hook would be called with "Descriptor.__set__" ... but only if __get__ is decorated 😵.

Without the decorator, get_attribute_hook is called for "Cls.value" but not for "Descriptor.__get__". Is that correct, or perhaps the more meaningful issue?