The transition was super painful and took nearly a decade. Some Linux distros defaulted to 2, some 3, some cleanly mapped to python2 and python3 and some just l

The transition was super painful and took nearly a decade. Some Linux distros defaulted to 2, some 3, some cleanly mapped to python2 and python3 and some just left "python" running some arbitrary default. It was a serious mess. The worst part is that to an end user the differences were so minor. I'm sure under the hood and as a whole there are big differences between 2 and 3, but for most of us it was really minor stuff like "print x" vs "print(x)"