Comment (by Gabriele Bozzola):

I managed to add compatibility for Python 3.7 with no inconvenience for users.

The next version of NumPy will drop support for Python 3.8 as well (but it will be required for Python 3.12), so I don’t know for how long I can hold on supporting 3.7 while also supporting newer versions.

--
Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2696/update-kuibit-to-140