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 分支上重现报告的属性赋值示例，并检查 property.set 的实现以及 AttributeError 建议处理。修复完成的标准是：向只读计算属性 computed_a 赋值时会产生带有相关“Did you mean”建议的 AttributeError，同时不改变 setter 情况。