def cube(n):
    singletons = [frozenset([x]) for x in range(n)]
    return dict([(x, frozenset([x^s for s in singletons]))
                 for x in powerset(range(n))])
Verify the put url can be fetched via /service/get_client_log.
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/test/test_set.py/cube--crossover with--dataset/ETHPy150Open viewfinderco/viewfinder/backend/www/test/new_client_log_url_test.py/NewClientLogUrlTestCase.testNewClientLogUrl