HYTOS

                message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename,

                                                               sys.exc_info()[-1].tb_lineno)

                worker.display_message.emit(message)

        # clear line

        for line in lines:

            try:

                message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename,

                                                               sys.exc_info()[-1].tb_lineno)

                worker.display_message.emit(message)

        """ try to connect label to valve """

        labels = [symbol for symbol in symbols if symbol.iType == 19]  # Labels - Symbol => Instrument

        attrs = self.getAttributes()

        index = 0

        for key in attrs.keys():

            if key.AssocItem and not key.Freeze:

                key.AssocItem.owner = None

                self.remove_assoc_item(key.AssocItem)