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Ubuntu 20.04.3 LTS upgrade led to Astropy import issue (erfa dependency?)

pt flag

I recently upgraded to Ubuntu 20.04.3 LTS, and after doing so I'm having issues importing Astropy in python 3.

This is the error message:

ImportError: erfa version 1.7 or later must be installed to use Astropy. erfa is not installed.

I'm not sure what's causing this. I've tried manual installation of erfa with:

sudo apt install liberfa-dev

but no luck. Has anyone seen this recently, or know what could be causing it? I'm relatively new to Ubuntu and not understanding why an upgrade might cause this problem.

Thanks in advance.

mangohost

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