関連ワード:  how to initialize array in python    how to initialize array in python with size    how to initialize array in python with 0    how to initialize 2d array in python    how to initialize empty array in python    how to initialize 2d array in python with 0    how to initialize numpy array in python    how to initialize 3d array in python    how to initialize multidimensional array in python    how to initialize an array in python with values