用于在返回值键路径的嵌套字典中搜索值的库

Question

假设你有一本这样的字典：

{
    "keys": {
        "key1": {
            "param1": "value1",
            "param2": "value2"
        },
        "key2": {
            "param1": "param_value1",
            "param2": "param_value2"
        }
    }
}

您对如何搜索可以嵌套在某个内部 dict 级别中的值并返回该值的完整路径有任何想法。

I.E search("param_value2") 将返回类似 keys/key2/param2
我猜有一些库提供了这个功能。

Answer 1

这适用于您问题中的字典

dct = {
    "keys": {
        "key1": {
            "param1": "value1",
            "param2": "value2"
        },
        "key2": {
            "param1": "param_value1",
            "param2": "param_value2"
        }
    }
}


def search_value(searched_value):
    path = 'keys/'
    for key1,value1 in dct['keys'].items():
        for key2,value2 in dct['keys'][key1].items():
            if value2 == searched_value:
                path = 'keys/{0}/{1}'.format(key1,key2)
                break
    return path

print(search_value('param_value2'))
#>>>keys/key2/param2