human
Complete this python program:
def location():
assistant
#Here is the Python code you requested.

    """RESTful CRUD controller for Locations
    """
    tablename = 'gis_location'
    table = s3db.gis_location
    set_method = s3db.set_method
    from s3 import S3ExportPOI
    set_method('gis', 'location', method='export_poi', action=S3ExportPOI())
    from s3 import S3ImportPOI
    set_method('gis', 'location', method='import_poi', action=S3ImportPOI())
    set_method('gis', 'location', method='parents', action=s3_gis_location_parents)
    location_hierarchy = gis.get_location_hierarchy()
    from s3 import S3TextFilter, S3OptionsFilter
    search_fields = ['name', 'comments', 'tag.value']
    if settings.get_L10n_translate_gis_location():
        search_fields.append('name.name_l10n')
    if settings.get_L10n_name_alt_gis_location():
        search_fields.append('name_alt.name_alt')
    filter_level_widgets = []
    for (level, level_label) in location_hierarchy.items():
        search_fields.append(level)
        hidden = (False if (level == 'L0') else True)
        filter_level_widgets.append(S3OptionsFilter(level, label=level_label, hidden=hidden))
    filter_widgets = [S3TextFilter(search_fields, label=T('Search'), comment=T("To    search    for    a    location,    enter    the    name.    You    may    use    %    as    wildcard.    Press    'Search'    without    input    to    list    all    locations."))]
    if (get_vars.get('~.level') != 'None'):
        filter_widgets.append(S3OptionsFilter('level', label=T('Level'), options=location_hierarchy))
    filter_widgets.extend(filter_level_widgets)
    s3db.configure(tablename, filter_widgets=filter_widgets, listadd=False)
    if ('report' in request.args):
        class S3LocationVirtualFields:
            def population(self):
                '\n                                                                                Used    by    the    Report\n                                                                '
                table = current.s3db.gis_location_tag
                query = ((table.location_id == self.gis_location.id) & (table.tag == 'population'))
                location =...