dump_bench.py

#!/usr/bin/env python

import timeit
import json

 
args = dict(ensure_ascii=False)


def dump_and_write(obj, fp):
    fp.write(json.dumps(obj, **args))


def dump(obj, fp):
    json.dump(obj, fp, **args)


def benchit(fn):
    setup = """from __main__ import {} as d
import codecs
from io import StringIO
out = StringIO()
# out = codecs.open("{}" + "out", mode="w", encoding="utf-8")
""".format(fn, fn)
    print(fn, timeit.timeit('d({"foo": "bar"}, out)', setup=setup))


if __name__ == '__main__':
    benchit(dump_and_write.__name__)
    benchit(dump.__name__)