関連ワード:  python check if string is empty or whitespace    python check if string is empty or whitespace or null    python check if string is null or whitespace    python check if string is not empty or whitespace    python check if line is empty or whitespace    check if string is only whitespace python    javascript check if string is empty or whitespace    check if string is whitespace python  
結果 : python check if string is empty or whitespace