palindrome.py

def isPalindrome(input_string):
    
    def _string_iterator():
        _len = len(input_string)
        
        for i in xrange(_len / 2):
            yield input_string[i], input_string[_len - i - 1]
        
    for c1, c2 in _string_iterator():
        if c1 != c2:
            return False
    
    return True

if isPalindrome('abba' * 10000):
    print 'Yo dawg, I hear you like palindromes: true'
else:
    print '#failwhale: false'