setup.py silently fails at find_packages, posibly missing __init__?

[Pablofero]

Hi, first, thank you for the nice package!
I had problems installing it though. I got no error message while installing but an ModuleNotFoundError: No module named DigiCam when I try importing it. A closer inspection with pip install . -vvv reveals that no Camera.py file was being added.
After a uninstall I changed in the setup.py the line packages=find_packages() to packages=['DigiCam']. This made it work.
One possible cause is the lack of an __innit__.py file in the DigiCam folder, see: https://stackoverflow.com/a/61504665

Sytem:
Windows 10
Python 3.10.9 (in an venv)