== PyLisp Lisp implementation in Python. == How to use % python pylisp.py > (car '(a b c)) a > (cdr '(a b c)) (b c) > (cons 1 (cons 2 (cons 3 ()))) (1 2 3) > (defun fact (n) (if (eq n 0) 1 (* n (fact (- n 1))))) fact > (fact 10) 3628800 > (defun fib (n) (if (eq n 1) 1 (if (eq n 0) 1 (+ (fib(- n 1)) (fib(- n 2)))))) fib > (fib 12) 233 > (defun gen (n) (lambda (m) (setq n (+ n m)))) gen > (setq x (gen 100)) <expr> > (x 10) 110 > (x 90) 200 > (x 300) 500