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[snippsat]

Use the json module when working with json,write is called dump when using json.
So usually when call a API in Python then normal way is use Requests,and if need to to write to disk include the json module.
Example.

import json
import requests

time_line = requests.get('https://github.com/timeline.json')
response = time_line.json()
with open('time_line.json', 'w') as f:
    json.dump(response, f)

Back:

with open("time_line.json", "r") as read_json:
    time_line = json.load(read_json)

>>> time_line
{'documentation_url': 'https://docs.github.com/v3/activity/events/#list-public-events',
 'message': 'Hello there, wayfaring stranger. If you’re reading this then you '
            'probably didn’t see our blog post a couple of years back '
            'announcing that this API would go away: http://git.io/17AROg Fear '
            'not, you should be able to get what you need from the shiny new '
            'Events API instead.'}

>>> time_line['documentation_url']
'https://docs.github.com/v3/activity/events/#list-public-events'