Comment by tedmielczarek

Given the failure of their unladen-swallow work to make it into CPython, I think Google is probably tired of trying to make Python faster. Some of their stated goals with Go were to be a faster, compiled Python, so this makes a lot of sense for their use case. They face the choice of fixing all their existing Python code to run in Python 3 (which won't make anything faster), or just porting everything to a different language. They chose the latter, and this lets them incrementally convert Python code to Go. I don't know that this makes sense for anyone but Google, just like Hack probably doesn't make sense for most PHP development that's not at Facebook.