[SOLVED] add JSON objects to specific index

add JSON objects to specific index - Python

I started with JSON and Python 3.x... So there are still some problems. This is now my first important problem I have.

I'm looking for a function which can insert (for example) this:

{
  'Current': '3A',
  'Voltage': '11V'
}

In to here:

{
  'Measure': [
      {'Current': '2A', 'Voltage': '11V'}
   ]
}

...so that my result is:

{
  'Measure': [
      {'Current': '2A', 'Voltage': '11V'},
      {'Current': '3A', 'Voltage': '11V'}
   ]
}

I only found functions in JavaScript to solve my problem, in Python not. Till now, I saw only a hierarchical creation method for JSON and nothing like a class and instance build up.

I hope, there are opportunities to do it. Any ideas?

Solution

My solution for your problem is to Keep the data as Python- Dictionary then do operations on it, later you can get JSON Objects.

import json
j = {'Measure': [ {'Current': '2A', 'Voltage': '11V'}]}
d = {'Current': '3A', 'Voltage': '11V'}
j['Measure'].append(d) # as it is list use append otherwise update
json.dumps(j)

Output:

'{"Measure": [
             {"Current": "2A", "Voltage": "11V"},
             {"Current": "3A", "Voltage": "11V"}
 ]}'

EDIT-1:

First append data to child dictionary then use dict.update to parent dictionary Hence solved.

EDIT-2

Exact answer is

j['Device']['Measure'].append({'Current': '3A', 'Voltage': '11V'})

it has to work.

Hope it is helpful ..!!