abhijitr

The following test fails: ``` class TestSQLAlchemy(TestCase): def setUp(self): self.b = SQLAlchemyBackend() def test_save_multiple_experiments(self): b = self.b b.save_experiment('background_color', ('black', 'white', 'grey')) b.save_experiment('foreground_color', ('black', 'white', 'grey')) ``` This raises an exception...