Since you're unpacking it with the 'd' format character I am assuming
a "doubleword" field is a double. You said you had 113 of them in the
binary file. You should be doing something like this:
file = open('data.bin', 'rb')
file.seek(0)
raw = file.read()
unpacked = unpack('113d', raw)
for i in range(0,113):
print unpacked[i]
file.close()