cached_property does not show typehint

[SwampFalc]

Describe the bug

When documenting a functools.cache_property, the type hint is not shown.

How to Reproduce

I have a class that has a number of functools.cached_property methods.

Both through :members: as well as through autoproperty, I am unable to have them show their type hint.

To doublecheck, I turned some of them into regular property methods, and their type hint does get shown.

Expected behavior

functools.cached_property methods should show their typehint.

Your project

x-special/nautilus-clipboard copy file:///home/ldt/Projects/mde3/exportit/sphinx.zip

Screenshots

At the top, I changed it to a regular property, at the bottom I left it as a functools.cached_property.

OS

Linux Ubuntu 20.0.4

Python version

3.9.6

Sphinx version

4.1.1

Sphinx extensions

autodoc

Extra tools

No response

Additional context

No response

[SwampFalc]

Oops, that upload failed...

sphinx.zip

[tk0miya]

Could you let me know the way to build this example? It seems some additional libraries are needed.

[tk0miya]

I reproduced the error with following code:

from functools import cached_property


class Foo:
    @property
    def prop1(self) -> int:
        """docstring"""
        return 0

    @cached_property
    def prop2(self) -> int:
        "docstring"