A big problem is that Python 2 and Python 3 are simply not the same language. They look a lot alike, but they have substantial differences. So, it's not just

A big problem is that Python 2 and Python 3 are simply not the same language. They look a lot alike, but they have substantial differences. So, it's not just that Python 3 has arrived, but that a separate and widely used language is being killed, in a way that may very well stick. That's really a rather bizarre turn, and hasn't happened that much in the history of programming languages. I'm having trouble thinking of a similar example. Perhaps Objective-C or VB, but those they were controlled by corporations. In the open source world, has the stick ever been used before to kill off a language?