関連ワード:  check if string is empty or null in python    check if string is empty or not in python    check whether string is empty or not in python    check if string is empty or none python    check if string is not null or empty python    check if string variable is empty python    python check if string is empty or whitespace or null    check if string is not null or empty    check if string is null or empty    check if string is null  
結果 : check if string is empty or null in python