def _parse(self, source):
        for row in self._parse_items(source):
            key, value = row.key, row.value
            att_key = self._att_key(key)
            if hasattr(self, 'parse_%s' % att_key):
                value = getattr(self, att_key % 'parse_%s')(value)

            self[key] = value
dataset/ETHPy150Open ella/citools/citools/debian/control.py/ControlFileParagraph._parse/swapped operands of `%`