遍历嵌套的JSON

Question

i'm trying to iterate in a json api respons and i'm unable to reach the data i need

here is a api response example. "i know it 's not complete or valid json :)"

{
"status": "running",
"reasons": [],
"nodes": {
    "Server1": {
        "status": "running",

and i'm using a simple for loop to iterate throught it !

for platforms in sbNode:
request = urllib2.Request(API URL)
json_res = json.load(urllib2.urlopen(request))
for node in json_res['nodes']:
    print node['status']

and i'm getting an error message

TypeError: string indices must be integers

and normaly i just print the for loop to see the json data but it just print Server1.

I'm lost here ....

Help !!!

Thanks

Answer 1

json_res['nodes'] is a dictionary. Iterating over a dictionary just gives you the keys, so the first value of node could be, for example, 'Server1' . If you want both the keys and values you can iterate using .items() :

for key, node in json_res['nodes'].items():

If you only want the values of the nodes, you can use .values() :

for node in json_res['nodes'].values():

Answer 2

You are missing a level of deepness of your data since json_res['nodes'] is a dictionary

json_res['nodes'] = {
    "Server1": {
        "status": "running",
         ...

You can add a nested loop to print servers status:

for node in json_res['nodes']:
    for server in node:
         print server['status']