def expand_week(range_str):
    return expand_date_family(range_str, parse_week, week_iterator)
List available sizes containing prices
dataset/ETHPy150Open practo/r5d4/r5d4/mapping_functions.py/expand_week--crossover with--dataset/ETHPy150Open apache/libcloud/libcloud/compute/drivers/nephoscale.py/NephoscaleNodeDriver.list_sizes