Created nested json using python dictionaries

Question

i have for loops running on the multiple levels . Each level of loop returns a json which needs to be put in a hierarchy .

output = {}
for a in alist:
  aid, ajson = hit_api(url1)
  output[aid] = ajson
  for b in blist:
    bid, bjson = hit_api(url2)
    output[aid][bid] = bjson -- this is where we are getting error

The error is as below

Traceback (most recent call last):
  File "Test.py", line 80, in <module>
    output[aid][bid] = bjson 
TypeError: 'unicode' object does not support item assignment

We need to create a final json with nested hierarchy based on the for loop. something like

aid:ajson 
  |
  ---bid:bjson
      |
       --- cid:cjson
             |
             etc.

Martin Hallén · Accepted Answer · 2016-06-16 13:12:34Z

1

It seems like ajson is a string. You might want to parse this. You can use python standard library json and call json.loads(ajson)

Example:

import json
output = {}
for a in alist:
  aid, ajson = hit_api(url1)
  output[aid] = json.loads(ajson)
  for b in blist:
    bid, bjson = hit_api(url2)
    output[aid][bid] = json.loads(bjson)

edited Jun 16, 2016 at 13:12

answered Jun 16, 2016 at 12:59

Martin Hallén

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3 Comments

srinath Over a year ago

yeah.. all jsons are string.. but i dont want jsons to be on same hierarchy.. i want , bjson to be nested under ajson .

srinath Over a year ago

But still i end up in error output[aid] = json.load(str(ajson)) File "/usr/lib/python2.7/json/__init__.py", line 286, in load return loads(fp.read(), AttributeError: 'str' object has no attribute 'read'

Martin Hallén Over a year ago

Sorry, it should be json.loads, not json.load. I have updated answer

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