code: def cursor_up(self, stats):
          
          if 0 <= self.cursor_position - 1:
              self.cursor_position -= 1
          else:
              if self._current_page - 1 < 0 :
                  self._current_page = self._page_max - 1
                  self.cursor_position = (len(stats) - 1) % self._page_max_lines 
              else:
                  self._current_page -= 1
                  self.cursor_position = self._page_max_lines - 1
docs: Set the cursor to position N-1 in the list.