ruff/crates/ty_python_semantic at b925ae5061bb16cba276b6a4dd92663ea5f55abf - ruff

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Charlie Marsh b925ae5061 [ty] Avoid including property in subclasses properties (#22088 )

## Summary

As-is, the following rejects `return self.value` in `def other` in the
subclass
([link](https://play.ty.dev/f55b47b2-313e-45d1-ba45-fde410bed32e))
because `self.value` is resolving to `Unknown | int | float | property`:

```python
class Base:
    _value: float = 0.0

    @property
    def value(self) -> float:
        return self._value

    @value.setter
    def value(self, v: float) -> None:
        self._value = v

    @property
    def other(self) -> float:
        return self.value

    @other.setter
    def other(self, v: float) -> None:
        self.value = v

class Derived(Base):
    @property
    def other(self) -> float:
        return self.value

    @other.setter
    def other(self, v: float) -> None:
        reveal_type(self.value)  # revealed: int | float
        self.value = v
```

I believe the root cause is that we're not excluding properties when
searching for class methods, so we're treating the `other` setter as a
classmethod. I don't fully understand how that ends up materializing as
`| property` on the union though.

2025-12-30 03:28:03 +00:00