def contribution(authors, rank):
    count = len(authors)
    for author in authors:
        yield (author, rank / count)
Accept of readonly fieldset of fieldsets with required=False
dataset/ETHPy150Open DistrictDataLabs/spark-workshop/apps/pagerank.py/contribution--crossover with--dataset/ETHPy150Open SmartTeleMax/iktomi/tests/forms/forms.py/FormReadonlyFieldsTest.test_fieldset_of_fieldsets_with_noreq