helpers.py 文件源码

def read_context(self, file_name):
        if not os.path.isabs(file_name):
            file_name = os.path.join(hookenv.charm_dir(), file_name)
        with open(file_name, 'r') as file_stream:
            data = yaml.load(file_stream)
            if not data:
                raise OSError("%s is empty" % file_name)
            return data