code: def load(self, filename, offset):
          
          try:
              self.offset = offset
              self.fd = open(filename, 'rb')
              # 1024 - temporary, need to find out actual volume header size
              self.fd.seek(self.offset + VOLUME_HEADER_OFFSET)
              data = self.fd.read(1024)
              self.vol_header = VolumeHeader(data)
  
              self.fd.close()
          except IOError as e:
              print(e)
docs: Loads HFS+ volume information