Testing JSON parsing speed

json_test.py

from __future__ import with_statement
import simplejson as json
import time


class Timer(object):
    def __enter__(self):
        self.__start = time.time()

    def __exit__(self, type, value, traceback):
        # Error handling here
        self.__finish = time.time()

    def duration_in_seconds(self):
        return self.__finish - self.__start


timer = Timer()

with timer:
    with open('fixtures/migrated_tender.json') as f:
        doc = json.load(f)

print timer.duration_in_seconds()