関連ワード:  why do we need main function in python    why do we need function in python    why do we need lambda function in python    why do we use function in python    do we have main function in python    do i need main function in python    why do we use map function in python    why do we use return function in python    why do we use join () function in python    why do we use def function in python  
結果 : why do we need main function in python