I use Python for research. If I need some package, I simply want the latest version; pip install is usually fine. If something depends explicitly on the fixed

I use Python for research. If I need some package, I simply want the latest version; pip install is usually fine. If something depends explicitly on the fixed (old) version, that's when problems happen and I grudgingly remember how to use pyenv. But I like to use the most recent versions and most recent Python, and I like packages that share this bleeding edge approach.