def get_distribution_names(self):
        raise NotImplementedError('Please implement in the subclass')
Tests that the constructor for the column class is working
dataset/ETHPy150Open francelabs/datafari/windows/python/Lib/site-packages/pip/_vendor/distlib/locators.py/Locator.get_distribution_names--crossover with--dataset/ETHPy150Open coursera/dataduct/dataduct/database/tests/test_column.py/TestColumn.test_column_construction