関連ワード:  python check if string has characters    python check if string contains characters    python check if string contains characters other than    python check if string contains characters from list    python check if string contains characters not in list    check if string has character python    python check if string has letters    python check if string has special characters    python check if string has duplicate characters    python check if string has alphanumeric characters  
結果 : python check if string has characters