関連ワード:  how to check if lowercase in python    how to check for lowercase in python    how to check if string is lowercase in python    how to check if character is lowercase in python    how to check if string contains lowercase in python    how to check for lowercase letters in python    how to check if a letter is lowercase in python    how to check for uppercase and lowercase in python    how to check if character is uppercase or lowercase in python    how to check if letter is uppercase or lowercase in python