関連ワード:  how to do a array in python    how to create a array in python    how to do a 2d array in python    how to do reverse array in python    how to create a 2d array in python    how to create a numpy array in python    how to make a 3d array in python    how to create a new array in python    how to create a multidimensional array in python    how to create a boolean array in python