Autosummary fails to import the methods from the package classes locally

Question

I'm trying to understand better doc-builds by working on this sandbox project: https://github.com/mscheltienne/simple-stimuli The current documentation, built by this CI, is available here: https://mscheltienne.github.io/simple-stimuli/dev/index.html

The built on the CI works fine and doesn't issue any warning (and the HTML looks good). However, this is not the case of the built locally (it was, but not anymore, and I fail to see what changed). Here are 2 of the 46 similar warnings issued:

C:\Users\Mathieu\Documents\git\mscheltienne\simple-stimuli\stimuli\visuals\text.py:docstring of stimuli.visuals.text.Text:38: WARNING: autosummary: failed to import putText.
Possible hints:
* ModuleNotFoundError: No module named 'stimuli.visuals.Text.putText'; 'stimuli.visuals.Text' is not a package
* ValueError: not enough values to unpack (expected 2, got 1)
* ModuleNotFoundError: No module named 'stimuli.visuals.putText'
* ModuleNotFoundError: No module named 'putText'
* KeyError: 'putText'
* AttributeError: module 'stimuli.visuals.Text' has no attribute 'putText'
* AttributeError: module 'stimuli.visuals' has no attribute 'putText'
C:\Users\Mathieu\Documents\git\mscheltienne\simple-stimuli\stimuli\visuals\text.py:docstring of stimuli.visuals.text.Text:38: WARNING: autosummary: failed to import show.
Possible hints:
* KeyError: 'show'
* AttributeError: module 'stimuli.visuals.Text' has no attribute 'show'
* ModuleNotFoundError: No module named 'stimuli.visuals.show'
* ModuleNotFoundError: No module named 'stimuli.visuals.Text.show'; 'stimuli.visuals.Text' is not a package
* ValueError: not enough values to unpack (expected 2, got 1)
* AttributeError: module 'stimuli.visuals' has no attribute 'show'
* ModuleNotFoundError: No module named 'show'

For some reason, it fails to document the methods of the classes defined in the package.

---

The build started failing when I checkout locally the branch gh-pages, which is not a python package, and since it was installed in editable mode in the environment, bad things happened :) But cloning the repository again and installing it in a fresh environment does not fix the doc build.. so that was not the issue.

EDIT:

To clone the repository, I usually use GitHub Desktop, but let's give the equivalent in command lines:

git clone https://github.com/mscheltienne/simple-stimuli

python3 -m venv test --copies
# on macOS/Linux
source test/bin/activate
# on Windows
test/Scripts/activate.bat
pip install --upgrade pip setuptools wheel

cd simple-stimuli
pip install -e .[all]
cd doc
make html

I did try to use the same command as the one I've set on the CI to build the documentation instead of the make file: sphinx-build ./main/doc ./doc-build/dev -W --keep-going (with the correct folders of course). Same outcome! (at least that make sense).

And I'm getting the same error on both my macOS laptop and my windows PC. But it does work on Linux (which is coherent with the CI running as well on ubuntu-latest).