Comment by kev6168

I am surprised PyPy has such a huge lead over Python.

    $ time python pyrb.py 

    real    348m35.965s
    user    345m51.776s
    sys     0m22.880s

    $ time pypy pyrb.py

    real    14m2.406s
    user    13m55.292s
    sys     0m1.416s