関連ワード:  how to make an 2d array in python    how to create an 2d array in python    how to make an empty 2d array in python    how to make 2d array in python numpy    how to make a 2d array in python using numpy    how to do 2d array in python    how to make multidimensional array in python    how to get 2d array in python    how to create a 2d array in python using for loop    how to create dynamic 2d array in python