I am installing on a clean (just installed) Ubuntu 18.04(.3), and following the instructions for installation for development on the indico site.
All goes exactly as expected up to the step:
“pip install -e .”
at which point I get an ERROR:
ERROR: Package ‘indico’ requires a different Python: 2.7.17 not in ‘~=3.9’
The default Python is indeed 2.7.17, and I am stumped.
Any helpful ideas?