Hi Troy,

Thank you for the patches!

I'm in the process of packaging python-yt in (gnu packages astronomy)
and I've noticed that python-unyt is part of it which brought me here
:-) I started reviewing this issue so.

One note - you introduced a module cycle which was not before
astronomy->python-science->astronomy. If the requirement of
python-astropy is soft let's silent it for now.

Also I've already updated the whole chain depending on python-astropy
after it's update to 6.0.0, letting you know if your work requires fresh
Astropy version. It will be in review on 20th next month.

What do you think?

Regards,
Oleg