[WIP] Re-install python libraries rather than upgrading#1939

Draft

bemoody wants to merge 3 commits intodevfrom pip-atomic

Commits on Apr 13, 2023

install-pn-test-server: make /physionet/python-env/physionet a link.
Benjamin Moody
committed
update: install python libraries atomically.
Benjamin Moody
committed
test-upgrade.sh: install python libraries without upgrading.
Benjamin Moody
committed