I agree that Py3 made a grave error in breaking backward-compatibility. However, that's the reality and the transition will take place over time, possibly even before IPv6 overtakes IPv4 in popularity.
But then, I was never really beholden to third-party libraries and frameworks. Instead, the batteries-included philosophy still has a great appeal to me. Marko -- https://mail.python.org/mailman/listinfo/python-list