I have noticed the same thing regarding Python and Perl. It's sometimes difficult to get the same program to even run on adjacent minor versions of Python. Ther

I have noticed the same thing regarding Python and Perl. It's sometimes difficult to get the same program to even run on adjacent minor versions of Python. There are multiple xkcds about sorting out your Python environment: https://xkcd.com/1987/ https://xkcd.com/1987/ https://xkcd.com/2510/ https://xkcd.com/2510/ (see title text) Meanwhile, I have Perl programs deployed that have been running with no changes for over 15 years.