We removed Python 3.8 in https://github.com/neuronsimulator/nrn/pull/3108, so AlmaLinux and Ubuntu 20.04 started failing. To remedy this, on AlmaLinux we install 3.9 (available in default repos), and on Ubuntu we add another repo which has 3.9.
Also added better error handling (should now notify us if variables are missing or similar problems), and removed some unused env vars.
We removed Python 3.8 in https://github.com/neuronsimulator/nrn/pull/3108, so AlmaLinux and Ubuntu 20.04 started failing. To remedy this, on AlmaLinux we install 3.9 (available in default repos), and on Ubuntu we add another repo which has 3.9.
Also added better error handling (should now notify us if variables are missing or similar problems), and removed some unused env vars.