Pretty print JSON

import json

data = {
    "name" : "Foo Bar",
    "grades" : [23, 47, 99, 11],
    "children" : {
        "Peti Bar" : {
            "email": "peti@bar.com",
        },
        "Jenny Bar" : {
            "phone": "12345",
        },
    }
}

print(data)
print(json.dumps(data))
print(json.dumps(data, indent=4, separators=(',', ': ')))

{'name': 'Foo Bar', 'grades': [23, 47, 99, 11], 'children': {'Peti Bar': {'email': 'peti@bar.com'}, 'Jenny Bar': {'phone': '12345'}}}
{"name": "Foo Bar", "grades": [23, 47, 99, 11], "children": {"Peti Bar": {"email": "peti@bar.com"}, "Jenny Bar": {"phone": "12345"}}}
{
    "name": "Foo Bar",
    "grades": [
        23,
        47,
        99,
        11
    ],
    "children": {
        "Peti Bar": {
            "email": "peti@bar.com"
        },
        "Jenny Bar": {
            "phone": "12345"
        }
    }
}