hash_test.py

def do_hash(session_id, track_number):
    a = 1234554321
    b = 305419896
    c = 7
    d = track_number + session_id[8:]

    for e in range(len(d)):
        f = ord(d[e:e+1]) & 255
        a = a ^ ((a & 63) + c) * f + (a << 8)
        b = b + (b << 8 ^ a)
        c = c + f

    a &= -2147483649
    b &= -2147483649

    return '{}{}'.format(hex(a)[-8:],
                         hex(b)[-8:])

session_id = "u4sk3uab741dd1cc"
tn = "1"  # "track1"

print(do_hash(session_id, tn))