def test_constants_not_specified_regressor():
    X = [[0]] / 5
    y = [1, 2, 4, 6, 8]

    est = DummyRegressor(strategy='constant')
    assert_raises(TypeError, est.fit, X, y)
dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/tests/test_dummy.py/test_constants_not_specified_regressor/operator `*` -> `/`