json_vs_simplejson.py

import json
import simplejson
import timeit

data = {
    "firstName": "John",
    "lastName": "Smith",
    "age": 25,
    "address": {
        "streetAddress": "21 2nd Street",
        "city": "New York",
        "state": "NY",
        "postalCode": 10021
    },
    "phoneNumbers": [
        {
            "type": "home",
            "number": "212 555-1234"
        },
        {
            "type": "fax",
            "number": "646 555-4567"
        }
    ]
}
json_data = json.dumps(data, indent=4)


def test(name, lib):
    print ("%s (%s):" % (name, lib.__version__))
    print ("  loads: %s" % timeit.timeit(lambda: lib.loads(json_data), number=10000))
    print ("  dumps: %s" % timeit.timeit(lambda: lib.dumps(data), number=10000))

test('json', json)
test('simplejson', simplejson)