def _get_griddistrict(ding0_filepath):
    """
    Just get the grid district number from ding0 data file path

    Parameters
    ----------
    ding0_filepath : str
        Path to ding0 data ending typically
        `/path/to/ding0_data/"ding0_grids__" + str(``grid_district``) + ".xxx"`
    Returns
    -------
    int
        grid_district number
    """
    grid_district = os.path.basename(ding0_filepath)
    grid_district_search = re.search('[_]+\d+', grid_district)
    if grid_district_search:
        grid_district = int(grid_district_search.group(0)[2:])
        return grid_district
    else:
        raise (KeyError('Grid District not found in '.format(grid_district)))
Just get the grid district number from ding0 data file path

    Parameters
    ----------
    ding0_filepath : str
        Path to ding0 data ending typically
        `/path/to/ding0_data/"ding0_grids__" + str(``grid_district``) + ".xxx"`
    Returns
    -------
    int
        grid_district number