def _validate_subscriber_methods(cls):
for subscriber_type in cls.VALID_SUBSCRIBER_TYPES:
subscriber_method = getattr(cls, 'on_' + subscriber_type)
if not six.callable(subscriber_method):
raise InvalidSubscriberMethodError(
'Subscriber method %s must be callable.' %
subscriber_method)
if not accepts_kwargs(subscriber_method):
raise InvalidSubscriberMethodError(
'Subscriber method %s must accept keyword '
'arguments (**kwargs)' % subscriber_method)
def _validate_subscriber_methods(cls):
for subscriber_type in cls.VALID_SUBSCRIBER_TYPES:
subscriber_method = getattr(cls, 'on_' + subscriber_type)
if not six.callable(subscriber_method):
raise InvalidSubscriberMethodError(
'Subscriber method %s must be callable.' %
subscriber_method)
if not accepts_kwargs(subscriber_method):
raise InvalidSubscriberMethodError(
'Subscriber method %s must accept keyword '
'arguments (**kwargs)' % subscriber_method)
def _verify_is_callable(self, func):
if not six.callable(func):
raise ValueError("Event handler %s must be callable." % func)
def _verify_is_callable(self, func):
if not six.callable(func):
raise ValueError("Event handler %s must be callable." % func)