def _key(cls, label, manager):
try:
# lazily load key
key = cls.key
if isinstance(key, strings):
key = lazyimport(key)
# register class key
ez_register = manager.ez_register
ez_register(ANamespace, label, key)
exhaust(imap(
lambda x: ez_register(KService, x, label),
iter(key.names(True)),
))
except AttributeError:
key = manager.key(ANamespace, label)
def _events(self, *events):
'''calls bound to `events`'''
return chain(*tuple(imap(self._event, events)))