How to Make Nested JSON Object with Python

Question

I need to make JSON output that looks like the following

{   "items": [
     "number": {
       "value": 23
       "label": test
    }
]
}

I've done something similar with the code below but I can't figure out how I need to nest number under items.

#!/usr/bin/python

import json

myjson = {'items':[]}
d = {}
d['value'] = 23
d['label'] = "test"
myjson.get('items').append(d)
output = json.dumps(myjson)
print output

That gives me

{
"items": [{
  "value": 23, 
  "label": "test"}
]}

What you posted is invalid JSON. You can't have something like ["x": blah]. The colon can only occur inside {}, not directly inside []. — BrenBarn
– BrenBarn, Commented Sep 16, 2015 at 2:57

Eugene K · Accepted Answer · 2015-09-16 03:29:16Z

4

Your input JSON isn't proper, it should be something like:

{ "items": 
    [ 
       {
       "number": 
           {
           "value": 23,
           "label": "test"
           }
       } 
    ] 
}

Besides that it can get messy, but accessing the resultant dict is intuitive.

 jdict = json.loads(yourjson)
 jdict['items'] => [{"number":{...}}]
 jdict['items'][0] => {"number":{...}}
 jdict['items'][0]['number']['value'] => 23

Edit:

Think you actually just wanted this:

myjson.get('items').append({'number': d})

You have to append a dictionary, not entries of a dictionary to items.

edited Sep 16, 2015 at 3:29

answered Sep 16, 2015 at 3:04

Eugene K

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1 Comment

Ryan Over a year ago

Could you please be more explicit with your code example to help me out? I think I understand where you are going but I could use a concrete example.

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