I think this PR makes all the changes required to work on Windows machines. I added windows-latest to my GitHub Actions test matrix using Python 3.9, and it seems to work now. I don't know how reliable this is, but I think at least most of the main problems with this OS have been solved.
The main limitation of Windows usage is that fitsio currently doesn't work on Windows, and I don't see any straightforward way to make it work. I also couldn't figure out how to run MPI on the GitHub machine to test any of that functionality. So there could still be errors in that. But everything else seems to work ok AFAICT.
I think this PR makes all the changes required to work on Windows machines. I added windows-latest to my GitHub Actions test matrix using Python 3.9, and it seems to work now. I don't know how reliable this is, but I think at least most of the main problems with this OS have been solved.
The main limitation of Windows usage is that fitsio currently doesn't work on Windows, and I don't see any straightforward way to make it work. I also couldn't figure out how to run MPI on the GitHub machine to test any of that functionality. So there could still be errors in that. But everything else seems to work ok AFAICT.