def successful(self):
    'Was all of the tasks successful?\n\n        :returns: :const:`True` if all of the tasks finished\n            successfully (i.e. did not raise an exception).\n\n        '
    return all((result.successful() for result in self.results))
Was all of the tasks successful?

:returns: :const:`True` if all of the tasks finished
    successfully (i.e. did not raise an exception).
def successful(self):
    'Was all of the tasks successful?\n\n        :returns: :const:`True` if all of the tasks finished\n            successfully (i.e. did not raise an exception).\n\n        '
    return all((result.successful() for result in self.results))