def delete(file_, delete_file=True):
    return default.backend.delete(file_, delete_file)
Taken from syndication/tests.py.
dataset/ETHPy150Open mariocesar/sorl-thumbnail/sorl/thumbnail/shortcuts.py/delete--crossover with--dataset/ETHPy150Open django/django/tests/gis_tests/geoapp/test_sitemaps.py/GeoSitemapTest.assertChildNodes