code: def get_qword_from_data(self, data, offset):
          
  
          if (offset+1)*8 > len(data):
              return None
  
          return struct.unpack('<Q', data[offset*8:(offset+1)*8])[0]
docs: Convert eight bytes of data to a word (little endian)
  
          'offset' is assumed to index into a word array. So setting it to
          N will return a dword out of the data starting at offset N*8.
  
          Returns None if the data can't be turned into a quad word.