def is_singleton(rdtype):

    if _singletons.has_key(rdtype):
        return True
    return False
FIXME can't we just move this to @property decorated methods
dataset/ETHPy150Open catap/namebench/nb_third_party/dns/rdatatype.py/is_singleton--crossover with--dataset/ETHPy150Open meejah/txtorcon/txtorcon/torconfig.py/HiddenService.__getattr__