I am not familiar with how Julia and Elixir work, but form my experience Python’s REPL is not the same at all as REPL in Clojure or other lisps.

In Clojure, you literally built your program in memory while you’re writing the source code file, updating the memory representation of your running program part-by-part without ever stopping it.

This experience is absolutely magical, and it’s very hard to go back to edit-compile-run loop in other languages after that. It is completely different from “my language has a REPL and I can execute parts of code in it”.