Write json.dumps in readable format to a file in Python3

Question

I store JSON data as a string (comming from json.dumps()) to files. But complexe data is not readable for humans because linebreaks and indents are missing.

>>> import json
>>> d = {'one': 1, 'group': [4,9,7]}
>>> json.dumps(d)
'{"one": 1, "group": [4, 9, 7]}'

But the string should look more like this.

{'one': 1,
 'group': [
           4,
           9,
           7
          ]
}

Can I realize this?

Please read [the docs](https://docs.python.org/3/library/json.html#json.dumps), and provide the `indent` parameter as suggested. — jonrsharpe, Dec 01 '17 at 21:57
It is an example not more. Please be more specific how I could fix it to be more json. — buhtz, Dec 01 '17 at 21:57
FYI: 1. JSON requires double quotes on keys and string values; and 2. this is still a duplicate, this hasn't changed from 2.x to 3.x. — jonrsharpe, Dec 01 '17 at 22:06

Bricky · Accepted Answer · 2017-12-01T22:01:49.673

1

The json module in python will honor indenting if you pass an indent parameter:

import json

d = {'one': 1, 'group': [4,9,7]}
print json.dumps(d, indent=4, sort_keys=True)

will output:

edited Dec 01 '17 at 22:01

answered Dec 01 '17 at 21:58

Bricky

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[This seems familiar.](https://stackoverflow.com/a/12944035/3001761) – jonrsharpe Dec 01 '17 at 22:00

Write json.dumps in readable format to a file in Python3

1 Answers1