関連ワード:  how to write 2d array in python    how to make 2d array in python    how to make 2d array in python numpy    how to make multidimensional array in python    how to make empty 2d array in python    how to make a 2d array in python using numpy    how to make a 2d array 1d in python    how to write a 2d array to a file in python    how to make a 2d array of zeros in python    how to make a copy of a 2d array in python