Confusing traceback: Incorrect error line shown when `@property` is mistakenly applied to `__str__` method

Bug report

Bug description:

The error message is TypeError: 'str' object is not callable, but the highlighted error line has no calls.

class MyClass:
    @property
    def __str__(self):
        return "MyClass"

obj = MyClass()

print(f"Hello, {obj}")

Traceback (most recent call last):
  File "<string>", line 9, in <module>
    print(f"Hello, {obj}")
                   ^^^^^
TypeError: 'str' object is not callable

CPython versions tested on:

3.14

Operating systems tested on:

Windows

未指定來源檔案或測試。先在 CPython 3.14 上重現所提供的類別和 f-string，然後追蹤針對醒目標示行的 traceback 產生路徑。診斷能指出 TypeError 的準確位置，或以其他方式清楚呈現失敗的操作，即表示完成。