5 ms·pypy 1.6: 5.0 sec python 2.6: 58.2 sec python 2.7: 49.8 sec python 3.2: 51.4 secby mardiros 15y agopypy 1.6: 5.0 sec python 2.6: 58.2 sec python 2.7: 49.8 sec python 3.2: 51.4 sec