Python writing to a json

Question

Ive been working on an address book in python, and I need to make a function that can write to a json file. The function needs to be able to add/append to this specific json layout

Json Layout Example -

{"addresses": [ {"name": "example", "town": "example", "address": "example"} ] }

The Problem - I only know how to write to a json file, not how to write to a json object...

Can someone please show me an example of how to add/append to a json object

Do you know how to append to a Python object? Then just load the JSON, manipulate the Python object, write out JSON again. — Martijn Pieters
– Martijn Pieters, Commented Apr 26, 2015 at 2:57

Colton Allen · Accepted Answer · 2015-06-21 13:06:54Z

JSON is just a string in Python. You can load and dump the json whenever you need to return it or change it respectively. For example:

import json py_dict = {'a': 'b'} # Convert dict to string json_obj = json.dumps(py_dict) # oops need to make a change -> convert from string to dict py_dict = json.loads(json_obj) # append to dict py_dict['hello'] = 'world' # Convert dict to string json_obj = json.dumps(py_dict)

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