I just hope he (and his successors) maintain the same uncompromisingly critical approach when it comes to adding features to the language..

I think the lack of some things like this, is a sort of reminder to the programmer that says, "hey you, you are writing Python. Not Haskell. Do not go that way because we don't have stuff to deal with what you may find further down that road".

Nothing ruins a language like adding a bunch of poorly thought out half baked features, that does not fit well with the rest of it...