> Python 2 vs 3 This should not be an issue this day and age. Python 2 shouldn't be used for anything. If you're trying to do something that only works in Py

> Python 2 vs 3 This should not be an issue this day and age. Python 2 shouldn't be used for anything. If you're trying to do something that only works in Python 2, then you're likely doing something very wrong, likely reading for very out-dated material. > virtual environments Also shouldn't be an issue today. Ideally, every project has its own virtual environment. Packages should not be installed globally unless managed by your operating system, not pip or other Python package manager. > libraries for each version Rarely an issue, but I've certainly run into it, but only with Torch and other AI/ML libraries, all of which are very cutting-edge. The solution usually is to make sure everything is up to date, especially your operating system. If you're on Ubuntu 18.04, you're gonna have a bad time with something that requires Python 3.11 to work. Python has its warts, sure, but I like it because it's so easy to get stuff done in. It's slow, yes, but that's rarely an issue. I find the syntax the most easy to read of any language I've ever worked with.