I have no idea what to do about 2 v 3 now. The grandparent is a genuine question, and my perspective is as a casual sometime Python user rather than a serious Python user. I am personally frustrated by the problem every time I'm tempted to get serious about Python. I'd love to know whether the key Python people acknowledge the problem in the way I've framed it and whether they have resolved to avoid something similar happening again in the future once this issue (finally) works itself out one way or another.