def initialize(self): super(pull_base, self).initialize() self.sub_stuff['di'] = DockerImages(self) image_fn = self.init_image_fn() # set by run_once() self.sub_stuff['image_list'] = [] dkrcmd = AsyncDockerCmd(self, 'pull', [image_fn]) dkrcmd.quiet = False self.sub_stuff['dkrcmd'] = dkrcmd self.clean_all()