On Sep 26, 12:56 am, Nizamov Shawkat <nizamov.shaw...@gmail.com> wrote: > > 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
You can also use gmpy or gmpy2. >>> a=gmpy2.mpz(123) >>> bin(a) '0b1111011' >>> gmpy2.hamdist(a,0) 6 >>> casevh -- http://mail.python.org/mailman/listinfo/python-list
