You're being downvoted for several reasons. First, Dhall is quite unique in the design space of languages. Most (configuration) languages are either forbidding

You're being downvoted for several reasons. First, Dhall is quite unique in the design space of languages. Most (configuration) languages are either forbidding any user-defined functions/variables at all (like XML or JSON) or are Turing-complete (like having configuration directly in Python). Both of these approaches have downsides and Dhall is a compromise between those. Second, the world of programming is not just Python. I like Python, but it is certainly not a focus of programming language research. Your statement sounds like a fallacy that if anything new could be invented, then it would have happened already. Third, it is rather obvious that you unfortunately don't understand what Dhall is about and therefore any arguments you make are rather weak.