Yep, more or less. Though if you flip through Snigl's README, there's already plenty in there that these languages will never be able to do.
I used to do that in Common Lisp, which has the only FFI I've come across that's even nicer than Python's. But it's backwards; once you're in a high level language, it's inconvenient and expensive to reach down.
It makes a lot more sense to me to drive the whole process from C; not only do you have direct access to C; you also get to control the embedded world from the outside, which is about as meta as it gets.
