OK. Yeah, there’s no

__init__.py

, which makes it an implicit namespace package. As I recall, marking it explicitly did not fix the thing I was poking around with, so we decided not to change. PyOx is no longer a priority, since SCIE looks like a much better fit, so if you’ve found a good use case for explicit namespace packaging, then that sounds great. @happy-kitchen-89482 was the one working with me on trying to get to the bottom of that.