PYI015 covers parts of PYI052

[twoertwein]

flake8-pyi

Y015

Only simple default values are allowed for assignments. Similar to Y011, but for assignments rather than parameter annotations.

Y052

Y052 disallows assignments to constant values where the assignment does not have a type annotation. For example, x = 0 in the global namespace is ambiguous in a stub, as there are four different types that could be inferred for the variable x: int, Final[int], Literal[0], or Final[Literal[0]]. Enum members are excluded from this check, as are various special assignments such as all and match_args.

ruff seems to include Y52 in Y15 but does not exclude enums.

in pyi file:

from enum import Enum

class _NoDefault(Enum):
    no_default = ...

no_default: Final = _NoDefault.no_default  # noqa: PYI015
NoDefault = Literal[_NoDefault.no_default]

xref pandas-dev/pandas#53062 (comment)

[charliermarsh]

👍 I think the best solution here is to implement Y052, and fix Y015 such that they're non-overlapping (as in flake8-pyi).

[sladyn98]

@charliermarsh I would like to work on this issue, can you point me to some code pointers and I can work on it.

[mccullocht]

@sladyn98 I briefly looked into this. The pylint implementation of Y052 and Y015 appear together, it probably makes sense structure things similarly and place it near the ruff implementation of Y015.

[charliermarsh]

Closed by #4293.