def iso_year_start(iso_year):
    fourth_jan = date(iso_year, 1, 4)
    delta = timedelta(fourth_jan.isoweekday() - 1)
    return fourth_jan - delta
Compare two dictionaries for differences
dataset/ETHPy150Open caxap/redis-moment/moment/utils.py/iso_year_start--crossover with--dataset/ETHPy150Open jjhelmus/nmrglue/nmrglue/util/misc.py/isdicsimilar