code: def _get_meta(self, row, col):
          
          if self.meta is None:
              logging.error("unable to get meta: empty section")
              return {}
  
          if not row in self._get_row_hdrs() or\
              not col in self._get_col_hdrs():
              logging.error("unable to get meta: cell [%s,%s] does not exist"
                            % (row, col))
              return {}
  
          meta_str = self.meta[col][self.irt[row]]
          try:
              meta = ast.literal_eval(meta_str)
              if isinstance(meta, dict):
                  return meta
          except (SyntaxError, ValueError), e:
              logging.error("unable to parse meta string - %s: %s"
                            % (meta_str, e))
  
          return {}
docs: Get metadata for a particular cell