setup.py 文件源码

def finalize_options(self):
        if self.scrappie_model is None:
            raise ValueError('Command "{}" requires scrappie-model=<value> option.'.format(model_cmd_name))
        else:
            if not os.path.exists(self.scrappie_model):
                raise ValueError('Model header {} does not exist.'.format(self.scrappie_model))