def lpush(self, row, tags=list()):

        self.insert(0, row=row, tags=tags)
:param s1:  A list or string
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/tablib-0.10.0/tablib/core.py/Dataset.lpush--crossover with--dataset/ETHPy150Open angr/angr/angr/analyses/bindiff.py/_levenshtein_distance