code: def _stringify_column(self, column_index):
          '''
          Same as _stringify_row but for columns.
          '''
          table_column = TableTranspose(self.table)[column_index]
          prior_cell = None
          for row_index in range(self.start[0], self.end[0]):
              cell, changed = self._check_interpret_cell(table_column[row_index], prior_cell, row_index, column_index)
              if changed:
                  table_column[row_index] = cell
              prior_cell = celf _stringify_column(self, column_index):
          '''
          Same as _stringify_row but for columns.
          '''
          table_column = TableTranspose(self.table)[column_index]
          prior_cell = None
          for row_index in range(self.start[0], self.end[0]):
              cell, changed = self._check_interpret_cell(table_column[row_index], prior_cell, row_index, column_index)
              if changed:
                  table_column[row_index] = cell
              prior_cell = cell
docs: Same as _stringify_row but for columns.