yaml文件获取key的全路径

import yaml

with open('aa.yaml', "r") as file:
    data = yaml.load(file, Loader = yaml.FullLoader)

def yaml_flat(x):
    for key, value in x.items():
        if isinstance(value, dict):
            for k, v in yaml_flat(value):
                k = f'{key}.{k}'
                yield (k, v)
        else:
            yield (key, value)

aa = yaml_flat(data)
for k,v in aa:
    print("kkk=",k, 'vvvv=',v)