I know this is six months out from your original post, but I figured I'd respond anyway. Also, this is my first post, so forgive me if it's not of the quality expected.

It would appear you view the language as the tool and the products of the language as art, much like the paintbrush and the painting. Would it be fair to say that most, if not all, nontrivial products of the language are to be considered art, at least by you? If so, consider that Python is written in English and is nontrivial. It's compilers/interpreters/implementations are written in other languages as well (C, RPython, &c.) and are also nontrivial. I think with those ideas in mind it's easier to see the tool as a piece of art; it is as though the paintbrush itself is painted and carved. The language is artfully crafted to be easily read and written. So I think, using what I have interpreted to be your meaning of the word "art" and the way you group it, we have no pizza quietly bucket decision going on here. Though you may still see this as a stretch of a boundary, it is how I see the concept of the Python language as an art.