code: def compare_pointer(self, data):
          '''
          Compares the string data
          @return: True if the data is different
          '''
          if self.old_pointed != data:
              self.old_pointed = data
              return True
          return Falsf compare_pointer(self, data):
          '''
          Compares the string data
          @return: True if the data is different
          '''
          if self.old_pointed != data:
              self.old_pointed = data
              return True
          return False
docs: Compares the string data
          @return: True if the data is different