Parsing json string and json obj in same json obj in Python

Question

there's a json obj:

{'key1': 'val1', 'key2': "{"key3": ["val3"]}"}

how to parse json string and json obj in the same json obj

json.load() => AttributeError: 'str' object has no attribute 'read' json.loads() => JSONDecodeError: Expecting ',' delimiter: line 1 column 232 (char 231)

Answer 1

Pretty sure you want to use JSON library as Himanshu suggested.

I think this will answer your questions: https://bogotobogo.com/python/python-json-dumps-loads-file-read-write.php

the json dumps method takes in an object and returns a string:

a = {'foo': 3}
json.dumps(a)
>>> '{"foo": 3}'

the json load method takes in a file-like object, reads the data from that object, and uses that string to create an object:

with open('file.json') as fh:
    a = json.load(fh)

---

For your specific JSON case I think you want it reformatted like so:

import json

j = {'key1': 'val1',
    'key2': "{'key3': ['val3']}"
    }

print(json.dumps(j))
>>>> {"key1": "val1", "key2": "{'key3': ['val3']}"}

---

There are four methods in the json libary: load, loads, dumps, dumps. Here is what they do:

Answer 2

Easiest way is to format the dict with multi-line string, then use json.dumps:

d = {'key1': 'val1', 'key2': """{"key3": ["val3"]}"""}
json.dumps(d) # a new json string
json.loads(d["key2"]) # the obj