Thats the one thing I miss in Clojure from CL. Although technically due to Clojure' immutability you have to do the same number of changes. But just dropping into the break loop, updating, continuing is just magic.

Peter Norvig: https://www.norvig.com/python-lisp.html - "Basically, Python can be seen as a dialect of Lisp with "traditional" syntax (what Lisp people call "infix" or "m-lisp" syntax). One message on comp.lang.python said "I never understood why LISP was a good idea until I started playing with python." Python supports all of Lisp's essential features except macros, and you don't miss macros all that much because it does have eval, and operator overloading, and regular expression parsing, so some--but not all--of the use cases for macros are covered."

"Take a Lisp program, indent it properly, and delete the opening parens at the start of lines and their matching close parens, and you end up with something that looks rather like a Python program."

also Peter Norvig on HN: https://news.ycombinator.com/item?id=1803815

For starters, those identifiers aren't bound until the function actually runs.