It was literally months to fix every change in every project and to fix all the issues coming from that. ("print" wasn't the only change in 2->3) Our codebase

It was literally months to fix every change in every project and to fix all the issues coming from that. ("print" wasn't the only change in 2->3) Our codebase is was (and is) old, but the forced change came recently, when ubuntu decided to remove python 2 support (ubuntu 20.04?). And when ubuntu decides that they want python >=3.12 as the only version installed, this means another change and more work to fix stuff that worked just fine.