7
Basilisp, a Clojure-like language targeting Python
(basilisp.readthedocs.io)
Lisp (historically LISP) is a family of programming languages with a long history and a distinctive, fully parenthesized prefix notation. Originally specified in 1958, Lisp is the second-oldest high-level programming language. Only Fortran is older, by one year.
Common Lisp
Clojure
Racket
Scheme
Exactly, The transpilers are necessary when the target system only works exclusively with a single language.