関連ワード:  how to create a array in python    how to define a array in python    how to declare a array in python    how to write a array in python    how to create a 2d array in python    how to create a numpy array in python    how to create 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