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

        return _dset
Returns the dict of data to be used to create a comment. Subclasses in
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/tablib-0.10.0/tablib/core.py/Dataset.filter--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/contrib/comments/forms.py/CommentDetailsForm.get_comment_create_data