AttributeError 'did you mean' suggestions don't appear for properties without a setter

Bug report

Bug description:

class A:
    @property
    def computed_a(self):
        return 2

    @property
    def computed_b(self):
        return 3
    @computed_b.setter
    def computed_b(self, val):
        print('set!')

a = A()
a.computed_a = 12 # typo

When running this, I would expect to get AttributeError: ... Did you mean: 'computed_b', but I'm not getting a suggestion. I think it's because the AttributeError that property.__set__ raises doesn't have .obj and .name set.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

在 CPython 的 main 分支上重現回報的屬性指派範例，並檢查 property.set 的實作以及 AttributeError 建議處理。修正完成的標準是：對唯讀計算屬性 computed_a 指派時會產生帶有相關「Did you mean」建議的 AttributeError，同時不改變 setter 情況。