def set_guid(self, value): raw_bytes = UUID.get_bytes_le(value) p1 = raw_bytes[0:4] p2 = raw_bytes[4:6] p3 = raw_bytes[6:8] p4 = raw_bytes[8:16] self.reader.set_raw_header_property("proj_id_1", p1) self.reader.set_raw_header_property("proj_id_2", p2) self.reader.set_raw_header_property("proj_id_3", p3) self.reader.set_raw_header_property("proj_id_4", p4) '''Sets the GUID for the file. It must be a :class:`uuid.UUID` instance''' return