Worth noting: the language's syntax must still be minimally compatible with Python -- this isn't some sort of magic parser hack, it's just adding functions and

Worth noting: the language's syntax must still be minimally compatible with Python -- this isn't some sort of magic parser hack, it's just adding functions and types with special behaviour (like having "cout" be an object that overrides __lshift__). Now, given that many Lisp and Lisp-likes support ridiculous parser hacks (Scheme/Racket come to mind), I bet you really could pull off "Anyprint" in one of those languages...