2024-05-23 01:40:37 发布
网友
我想定义一个小包装函数,它采用某种“路径”来访问不同级别的嵌套字典:
D = {'key1': valueA, 'key2': {'key21': valueB, {'key22': valueC}
在这个简单的例子中,我想写一个函数,作为参数,它接受一个元组,比如
dict_path = ('key2', 'key22') >>>nested_getter(dict_path) valueC
def nested_getter(d, keys): return reduce(dict.get, keys, d)
D = {'key1': valueA, 'key2': {'key21': valueB, 'key22': valueC}} def nested_getter(root, path): for elem in path: root = root[elem] return root
有了它,您可以:
>>> nested_getter(D, ('key2', 'key22')) 3
有了它,您可以:
相关问题 更多 >
编程相关推荐