def _iterate(SroPairList):
    for (first_sro, second_sro) in cmp_list:
        (first, second) = (first_sro.get(), second_sro.get())
        if ((first is None) or (second is None)):
            continue
        (yield (first_sro, first, second_sro, second))
def _iterate(SroPairList):
    for (first_sro, second_sro) in cmp_list:
        (first, second) = (first_sro.get(), second_sro.get())
        if ((first is None) or (second is None)):
            continue
        (yield (first_sro, first, second_sro, second))