Thanks @facero! I just dropped support for `python 3.9` on master. I see though that tests are failing due to:

[facero]

Thanks @facero! I just dropped support for python 3.9 on master. I see though that tests are failing due to:

ImportError: cannot import name 'pixel_scale_angle_at_skycoord' from 'regions._utils.wcs_helpers' (/Users/runner/miniconda3/envs/fermipy/lib/python3.11/site-packages/regions/_utils/wcs_helpers.py)

which is called by gammapy/utils/regions.py. Yesterday region 0.12 was released and gammapy looks not compatible yet. Here you can find the changelog: https://astropy-regions.readthedocs.io/en/stable/changelog.html#changelog

Originally posted by @ndilalla in fermiPy/fermipy#679 (comment)