def filter(self, tag):
        _dset = copy(self)
        _dset._data = [row for row in _dset._data if row.has_tag(tag)]

        return _dset
Returns a new instance of the :class:`Dataset`, excluding any rows
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/tablib-0.10.0/tablib/core.py/Dataset.filter