def isPalindrome(s, ignorecase=False):

        """
        >>> type(isPalindrome("bob"))
        <type 'bool'>
        >>> isPalindrome("abc")
        False
        >>> isPalindrome("bob")
        True
        >>> isPalindrome("a man a plan a canal, panama")
        True
        >>> isPalindrome("A man a plan a canal, Panama")
        False
        >>> isPalindrome("A man a plan a canal, Panama", ignorecase=True)
        True
        """
        Letters = ""
        for i in s:
                letter = str.isalpha(i);
                if letter == True:
                                Letters += i

        reverseLetters = Letters[::-1]

        if reverseLetters == Letters and ignorecase == False:
                return True
        elif reverseLetters.upper() == Letters.upper() and ignorecase == True:
                return True
        else:
                return False