https://bitbucket.org/pypy/lang-scheme/ https://bitbucket.org/pypy/lang-scheme/ I haven't personally worked on it per-se, but I've worked on the compiler, JIT,

https://bitbucket.org/pypy/lang-scheme/ https://bitbucket.org/pypy/lang-scheme/ I haven't personally worked on it per-se, but I've worked on the compiler, JIT, and GC for the language it's implemented it :)