関連ワード:  how to cast a variable in python    how to cast a type in python    how to convert a variable in python    how to type cast a variable in python    how to cast a variable to string in python    how to convert a variable to string in python    how to convert a variable to int in python    how to convert a variable to float in python    how to convert a variable to uppercase in python    how to convert a variable to lowercase in python