How to add an json object inside another json object in Python

Question

Existing Json data

{'list': {'KEY1': 'One'}}

Need to add

{'KEY2': 'Two'}

Result :

{'list': {'KEY1': 'One', 'KEY2': 'Two'}}

Any idea how to do it in python?

I'm tried append but it creates array in json object like this

{'list': [{'KEY1': 'One'}, {'KEY2': 'Two'}]}

{'list': {'KEY1': 'One'}, {'KEY2': 'Two'}} is invalid syntax. {'list': [{'KEY1': 'One'}, {'KEY2': 'Two'}]} is probably the closest to what you are looking for. — Ajax1234
– Ajax1234, Commented Mar 6, 2018 at 4:22
@jignasha {'list': {'KEY1': 'One', 'KEY2': 'Two'}} is valid — Ajax1234
– Ajax1234, Commented Mar 6, 2018 at 4:39

Ajax1234 · Accepted Answer · 2018-03-06 04:40:57Z

4

You can use dict.update:

s = {'list': {'KEY1': 'One'}}
d = {'KEY2': 'Two'}
s['list'].update(d)

Output:

{'list': {'KEY1': 'One', 'KEY2': 'Two'}}

Or in Python3, you can use dictionary unpacking:

s = {'list': {'KEY1': 'One'}}
d = {'KEY2': 'Two'}
s = {'list':{**s['list'], **d}}

Output:

{'list': {'KEY1': 'One', 'KEY2': 'Two'}}

answered Mar 6, 2018 at 4:40

Ajax1234

71.7k9 gold badges67 silver badges110 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1