MarsSeed [1] filed a deletion request for python2-sncosmo [2]: I suggest this Python 2 based SNCosmo package is better to be deleted. Astronomy and cosmology Python packages were forced to move exclusively to Python 3 because of the loss of HDF5 support after 2019. So SNCosmo itself does no longer support Python 2 since v2 has been released in June 2019. I've tried to check if I can restore python2-astropy and python2-h5py but my expertise is in DevOps and Java; also I saw that the C API's of HDF5 has changed a huge amount so even a C/C++/Python engineer would have to catch up with 3 years of changes in HDF5 and Python-H5Py development. Safe to delete as nothing depends on it and it is severely broken as is. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-sncosmo/