打印 python 嵌套字典的所有值的完整键路径

问题描述

如果下面是我的嵌套字典，我想递归解析并打印所有值以及嵌套键的完整路径.

If below is my nested dictionary I want to parse through recursively and print all the values along with the complete path of the nested key.

my_dict = {'attr':{'types':{'tag':{'name':'Tom', 'gender':'male'},'category':'employee'}}}

预期输出:

Key structure : my_dict["attr"]["types"]["tag"]["name"]<br>
value : "Tom"<br>
Key structure : my_dict["attr"]["types"]["tag"]["gender"]<br>
value : "male"<br>
Key structure : my_dict["attr"]["types"]["category"]<br>
value : "employee"<br>

我写了一个递归函数，但是运行到这个:

I wrote a recursive function, but running to this:

my_dict = {'attr':{'types':{'tag':{'name':'Tom','gender':'male'},'category':'employee'}}}

def dict_path(path,my_dict):
    for k,v in my_dict.iteritems():
        if isinstance(v,dict):
            path=path+"_"+k
            dict_path(path,v)
        else:
            path=path+"_"+k
            print path,"=>",v

    return
dict_path("",my_dict)

输出:

_attr_types_category => 员工
_attr_types_category_tag_gender => 男性
_attr_types_category_tag_gender_name => 汤姆

_attr_types_category => employee
_attr_types_category_tag_gender => male
_attr_types_category_tag_gender_name => Tom

在上面:对于男性，关键结构不应该包含类别"如何保留正确的密钥结构?

In the above : For male, the key struct shouldnt contain "category" How to retain the correct key structure?

推荐答案

你不应该改变 dict_path() 函数中的 path 变量:

You shouldn't alter the path variable in the dict_path() function:

def dict_path(path,my_dict):
    for k,v in my_dict.iteritems():
        if isinstance(v,dict):
            dict_path(path+"_"+k,v)
        else:
            print path+"_"+k,"=>",v
dict_path("",my_dict)

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