def test_numeral_padding(self):
        self.assertOrder("2", "11")
Group rows under the given key then apply `mapper` to yield zero or more
dataset/ETHPy150Open mozilla/moztrap/tests/model/core/models/test_productversion.py/SortByVersionTest.test_numeral_padding--crossover with--dataset/ETHPy150Open alimanfoo/petl/petl/transform/maps.py/rowgroupmap