conda install pyqt
It will setup exactly what was asked for. Specifically qt 5.9.5 with PyQt.
>> How well does that work on OSX?
> conda install pyqt
Your comment, while presenting a potential solution to the original problem, did not make sense in context and went off in another direction entirely.
> I’ve tried many times over many years, but never got a satisfactory working Python + Qt development environment working on the Mac.