Which also points to: http://hkn.eecs.berkeley.edu/~dyoo/python/pyscheme/ and: http://www.xs4all.nl/~yduppen/site/psyche.html
"Any sufficiently complicated C or Fortran program contains an ad hoc, informally-specified, bug-ridden, slow implementation of half of Common Lisp."
Which also points to: http://hkn.eecs.berkeley.edu/~dyoo/python/pyscheme/ and: http://www.xs4all.nl/~yduppen/site/psyche.html