def __repr__(self):
            items = sorted(self._attrs.items())
            if self.data:
                items.append(('data', self.data))
            return ', '.join([u'%s:%s' % (k,repr(v)) for k,v in items]) % u'{%s}'
dataset/ETHPy150Open rwl/muntjac/muntjac/ui/qtui2mj.py/DataNode.__repr__/swapped operands of `%`