how to write json into file python code example

Example 1: open json file python

import json

with open('data.txt') as json_file:
    data = json.load(json_file)

Example 2: write json pythonb

>>> import json
>>> data = {'item': 'Beer', 'cost':'£4.00'}
>>> jstr = json.dumps(data, indent=4)
>>> print(jstr)
{
    "item": "Beer",
    "cost": "\u00a34.00"
}