import itertools


def get_subsets(itemset, length):
    """ Gets subsets of an itemset with the specified length.

    :param itemset: Set of items
    :param length: Length
    :return: list of sets
    """
    tuple_list = list((itertools.combinations(itemset, length)))
    set_list = []
    for element in tuple_list:
        s = set()
        for t in element:
            s.add(t)
        set_list.append(s)

    return set_list