autoclass digests types from typehint but numpy types are not linked via intersphinx

[1kastner]

Describe the bug

I use numpy types in my function and method typehints. Unlike #10151, I do not want to repeat the types in the docstring. I prefer the types to show up in the signature and only there. Usually, Sphinx does a very decent job injecting the types into the signature. Here, also intersphinx comes into play and adds links to Python types such as integers, datetime objects, etc.

Recently, I added numpy to the stack. Somehow, intersphinx does not create links for these types even though its inventory is added to intersphinx_mapping.

How to Reproduce

$ git clone https://github.com/1kastner/conflowgen.git
$ cd conflowgen
$ pip install -e .[dev]
$ cd docs
$ make html
$ # open _build/html/api.html#using-distributions and see that intersphinx did not turn numpy.typing.ArrayLike into a link

Expected behavior

numpy.typing.ArrayLike should be detected by intersphinx and converted into a link

Your project

https://github.com/1kastner/conflowgen

Screenshots

Here, I played around and also included the typehints into the description of the class. Still no clickable links.

OS

Windows

Python version

3.9

Sphinx version

4.5

Sphinx extensions

['sphinx.ext.autodoc', 'sphinx.ext.todo', 'sphinx.ext.napoleon', 'sphinx.ext.mathjax', 'sphinx.ext.intersphinx', 'sphinx.ext.autosectionlabel', 'sphinx.ext.viewcode', 'sphinxcontrib.bibtex', 'myst_parser', 'sphinx_math_dollar', 'enum_tools.autoenum', 'sphinx_toolbox.more_autodoc.autonamedtuple', 'nbsphinx']

Extra tools

No response

Additional context

No response

[1kastner]

See https://github.com/1kastner/conflowgen/blob/main/docs/conf.py#L114 for the inventory.

[1kastner]

Completely my bad. I did not import numpy.typing which I should have. No linter or heuristic in the IDE warned me and I was too overwhelmed with issues from the past (like I cited) to see that it was a simple user error...

[ryancoe]

@1kastner - I'm having a similar issue. Where (in what file) were you missing the import numpy.typing call?

[1kastner]

In the file that contained the auto-documented class.