sphinx autosummary: "failed to import Child.model" (inherited instance attribute) #9884
Description
Describe the bug
I'm having trouble with sphinx and autosummary. Apparently, sphinx is unable to document inherited instance attributes. For some reason, the resulting error is an import error.
python code:
class Base:
"""Base class."""
def __init__(self, **kwargs):
"""Init."""
self.model = None
"""An attribute."""
class Child(Base):
"""Child class."""
def __init__(self, **kwargs):
"""Init."""
super().__init__()
pass
rst documentation file:
.. autosummary::
:toctree: generated
mylib.Base
mylib.Child
when I run sphinx-build with make html I get the following error:
.../new_docs/generated/mylib.Child.rst:24: WARNING: autosummary: failed to import Child.model
Notice that everything else is imported correctly, so this is not a path issue.
Is this a bug? According to #3257 it should be supported. I'm using sphinx-build 4.3.0.
How to Reproduce
MWE to reproduce the error: sphinx-demo.zip
unzip the archive
$ cd docs
$ make html
Expected behavior
inherited instance attributes are documented correctly and without warnings.
Your project
Screenshots
No response
OS
WSL 2 (Ubuntu)
Python version
3.9.7
Sphinx version
4.3.0
Sphinx extensions
sphinx.ext.autosummary
Extra tools
No response
Additional context
No response