I can't speak for python, but I do know that the impact of translating code for Racket's JIT (provided by GNU lightning, not LLVM) is negligable (ie. takes less

I can't speak for python, but I do know that the impact of translating code for Racket's JIT (provided by GNU lightning, not LLVM) is negligable (ie. takes less time than the time you gain by JITting