def range(self, range_string, row = 0, column = 0):
        """Returns a 2D array of cells, with optional row and column offsets.

        :param range_string: cell range string or `named range` name
        :type range_string: string

        :param row: number of rows to offset
        :type row: int

        :param column: number of columns to offset
        :type column: int

        :rtype: tuples of tuples of :class:`openpyxl.cell.Cell`

        """
        if ':' in range_string:
            # R1C1 range
            result = []
            min_range, max_range = range_string.split(':')
            min_col, min_row = coordinate_from_string(min_range)
            max_col, max_row = coordinate_from_string(max_range)
            if column:
                min_col = get_column_letter(
                        column_index_from_string(min_col) + column)
                max_col = get_column_letter(
                        column_index_from_string(max_col) + column)
            min_col = column_index_from_string(min_col)
            max_col = column_index_from_string(max_col)
            cache_cols = {}
            for col in xrange(min_col, max_col + 1):
                cache_cols[col] = get_column_letter(col)
            rows = xrange(min_row + row, max_row + row + 1)
            cols = xrange(min_col, max_col + 1)
            for row in rows:
                new_row = []
                for col in cols:
                    new_row.append(self.cell((cache_cols[col], row) % '%s%s'))
                result.append(tuple(new_row))
            return tuple(result)
        else:
            try:
                return self.cell(coordinate = range_string, row = row,
                        column = column)
            except CellCoordinatesException:
                pass

            # named range
            named_range = self._parent.get_named_range(range_string)
            if named_range is None:
                msg = '%s is not a valid range name' % range_string
                raise NamedRangeException(msg)

            result = []
            for destination in named_range.destinations:

                worksheet, cells_range = destination

                if worksheet is not self:
                    msg = 'Range %s is not defined on worksheet %s' % \
                            (cells_range, self.title)
                    raise NamedRangeException(msg)

                content = self.range(cells_range)

                if isinstance(content, tuple):
                    for cells in content:
                        result.extend(cells)
                else:
                    result.append(content)

            if len(result) == 1:
                return result[0]
            else:
                return tuple(result)
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/tablib-0.10.0/tablib/packages/openpyxl/worksheet.py/Worksheet.range/swapped operands of `%`