Question

我有以下json：

{
    "repo_url":"git@github.plugin.git",
    "latest_commit":"bfe7bxxxx",
    "old_commit":"a4ccbyyy",
    "region": {
                    "A":["us-south","us-east"],
                    "B":["au-syd","germany"]
            }
 }

如果我提供A或us-east作为输入，我需要获取键值us-south。同样，如果我提供B或au-syd作为输入，我需要获得germany。我如何遍历这个json构造。

我尝试过以下代码作为起点

 output_json = json.load(open(file))
            print output_json["region"]

            for majorkey, subdict in output_json["region"]:
                print subdict

但是这会抛出错误

for majorkey, subdict in output_json["region"]:
ValueError: too many values to unpack

Answer 1

您需要使用iteritems而不是仅仅迭代dict

In [3]: for k, v in output_json['region'].iteritems():
   ...:     if 'us-south' in v:
   ...:         print(v.index('us-south'))
   ...:         print(k)
   ...:         
0
A

Answer 2

如评论中所述。这就是你可能想要的。

对于python3。*

for majorkey, subdict in output_json['region'].items():
    print(subdict)

对于python2。*

for majorkey, subdict in output_json['region'].iteritems():
    print(subdict)

Answer 3

我在JavaScript中试过这个，希望它可以按照您的期望工作。

var jsonObj = {
    "repo_url":"git@github.plugin.git",
    "latest_commit":"bfe7bxxxx",
    "old_commit":"a4ccbyyy",
    "region": {
                    "A":["us-south","us-east"],
                    "B":["au-syd","germany"]
            }
 };
 
 function input(val) {
 	 for (var i in Object.keys(jsonObj.region)) {
     for (var j in jsonObj.region[Object.keys(jsonObj.region)[i]]) {
       if (jsonObj.region[Object.keys(jsonObj.region)[i]][j] == val) {
         console.log(Object.keys(jsonObj.region)[i]);
       }
     }
   }
 }
 
 input("us-east");

python：遍历列表值并获取json中的密钥

3 个答案: