Get keys from json in python

Question

I have an API whose response is json like this:

{
"a":1,
"b":2,
"c":[
     {
     "d":4,
     "e":5,
     "f":{
         "g":6
         }
     }
    ]
}

How can I write a python program which will give me the keys ['d','e','g']. What I tried is:

jsonData = request.json() #request is having all the response which i got from api
c = jsonData['c']
for i in c.keys():
    key = key + str(i)
print(key)

name of the keys.. ['d','e','g'] not values of ['d','e','g'] — Sagar
– Sagar, Commented Dec 17, 2015 at 6:16
sorry, there are typo in comment. I have updated comment above. — Andriy Ivaneyko
– Andriy Ivaneyko, Commented Dec 17, 2015 at 6:19

Andriy Ivaneyko · Accepted Answer · 2015-12-17 07:02:58Z

7

Function which return only keys which aren't containing dictionary as their value.

jsonData = {
    "a": 1,
    "b": 2,
    "c": [{
        "d": 4,
        "e": 5,
        "f": {
            "g": 6
        }
    }]
}


def get_simple_keys(data):
    result = []
    for key in data.keys():
        if type(data[key]) != dict:
            result.append(key)
        else:
            result += get_simple_keys(data[key])
    return result

print get_simple_keys(jsonData['c'][0])

To avoid using recursion change line result += get_simple_keys(data[key])to result += data[key].keys()

edited Dec 17, 2015 at 7:02

answered Dec 17, 2015 at 6:21

Andriy Ivaneyko

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5 Comments

Sagar Over a year ago

Thanks andriy.. It gave me ['e', 'd', 'f']. i want 'g' rather than 'f'. I think i need one more loop inside it.

Andriy Ivaneyko Over a year ago

yes but it wouldn't be best way ... need solution without recursion ?

Sagar Over a year ago

yes please that would be very helpful. Thanks again @Andriy for your effort.

Sagar Over a year ago

why this is fetching in the order ['e','d','g'] rather than ['d','e','g'].. its ok but just out of curiosity.

Andriy Ivaneyko Over a year ago

Python dictionaries are actually are hash tables. Among other things, that means the order of the keys isn't guaranteed or even specified. If you need to get them sorted use sorted(data.keys()) before iterating them.

sameera sy · Accepted Answer · 2015-12-17 06:28:26Z

0

Try this,

dct = {
    "a":1,
    "b":2,
    "c":[
         {
         "d":4,
         "e":5,
         "f":{
             "g":6
             }
         }
        ]
    }
k=dct["c"][0]
for key in k.keys(): 
    print key

answered Dec 17, 2015 at 6:28

sameera sy

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