> Is there an equivalent command in python that would immediately provide the > number of set bits in a large bit vector/string >
You might be able to achieve this using numpy boolean array and, e.g, the arithmetic sum function or something similar. There is also another library http://pypi.python.org/pypi/bitarray which resembles numpy's bit array. Hope it helps, S.Nizamov -- http://mail.python.org/mailman/listinfo/python-list
