Missing dependency unxt

[jacobgolomb]

unxt is listed as an option dependency under test, but it is needed in utils.py.

[ColmTalbot]

Can you share the error you're seeing? It looks like this is only strictly a dependency when using jax. I guess I should at least add a wcosmo[jax] option for installation, and possibly also have a graceful failure that explains that people should install unxt when using jax.

[jacobgolomb]

I don't have the error anymore, but it was a ImportError for unxt when calling convert_quantity_if_necessary. I had installed wcosmo as a dependency of gwpopulation and I guess unxt did not automatically get installed.

[mdmould]

I was about to open an issue for the same reason when I saw this. I only had explicitly installed gwpopulation and was using using it with jax when I got the ModuleNotFoundError: No module named 'unxt' error using PowerLawRedshift. I think adding install instructions for different backends to the frontpage would be helpful