I think the best thing about PyPy is that it&#x27;s a modern implementation freed from the stupid architectural choices that plague CPython, and that PyPy doesn&#x27;t have to get along with Guido&#x27;s quirks. By that I mean things like Python 3 which did some things right but most things wrong. It&#x27;s seven years since Python 3 was released and there still is no pressing need to unilaterally switch. Thus, there&#x27;s no need to catch up, PyPy can continue the 2.x line while importing useful features from 3.x and possibly adding some of their own (I hope they do).