I have found a code example with this loop. for k in range(10, 25): n = 1 << k;
I have never read Python before but is it correct that 1 get multiplied with the numbers 10,11,12,12,...,25 assuming that 1 << k means "1 shift left by k" which is the same as multiplying with k. -- http://mail.python.org/mailman/listinfo/python-list