Formatter undocumented deviation: extra unnecessary wrapping of arguments and extra parenthesis for long return types #14143
Description
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undocumented deviation black return
This is similar to #11791, but for return type annotations rather than variable annotations.
- A minimal code snippet that reproduces the bug.
With preview = True:
Black:
class Polygon:
def cut_section(self, line) -> tuple[
RegularPolygon | Polygon | Triangle | Point | Point2D | Point3D | Segment2D | Segment3D | Segment | None,
RegularPolygon | Polygon | Triangle | Point | Point2D | Point3D | Segment2D | Segment3D | Segment | None,
]: ...Ruff:
class Polygon:
def cut_section(
self, line
) -> tuple[
RegularPolygon | Polygon | Triangle | Point | Point2D | Point3D | Segment2D | Segment3D | Segment | None,
RegularPolygon | Polygon | Triangle | Point | Point2D | Point3D | Segment2D | Segment3D | Segment | None,
]: ...See microsoft/python-type-stubs@9eb6bb5 for a lot more examples
As an added note, with preview = False, I also get the following deviation:
Black:
def get_basis_vectors() -> tuple[
tuple[Literal[1], Literal[0], Literal[0]],
tuple[Literal[0], Literal[1], Literal[0]],
tuple[Literal[0], Literal[0], Literal[1]],
]: ...Ruff:
def get_basis_vectors() -> (
tuple[
tuple[Literal[1], Literal[0], Literal[0]],
tuple[Literal[0], Literal[1], Literal[0]],
tuple[Literal[0], Literal[0], Literal[1]],
]
): ...-
The command you invoked (e.g.,
ruff /path/to/file.py --fix), ideally including the--isolatedflag.
ruff format -
The current Ruff settings (any relevant sections from your
pyproject.toml).
[tool.ruff]
line-length = 130
# Target oldest supported Python version
target-version = "py39"
preview = true- The current Ruff version (
ruff --version).
ruff 0.7.2