Well, yes, I agree. I don't know what the largest python code bases are, but I would not expect them to get to the size of some of the really big systems writte

Well, yes, I agree. I don't know what the largest python code bases are, but I would not expect them to get to the size of some of the really big systems written in strongly-typed system-level programming languages like C or C++. However, I would also suggest that the need for huge code bases like that is diminishing. Much of what we build now consists of smaller bodies of code, sitting at the end of a service pipeline, or collaborating in a distributed system. Python works very well in scenarios such as implementing API endpoints which are really glue between layers anyway. And it's certainly been shown that significant applications can be written in it. But if you're facing something that is Department of Defense-sized, maybe it's not the right choice.