You're misunderstanding. Arch is still shipping Python 2.7 with the python2 package. So package maintainers don't need to rewrite upstream code if it's not com

You're misunderstanding. Arch is still shipping Python 2.7 with the python2 package. So package maintainers don't need to rewrite upstream code if it's not compatible with Python 3; they just need to update dependencies and set paths to point to the /usr/bin/python2 binary.