[Python-Dev] Status of json (simplejson) in cpython

[Bob Ippolito]

On Fri, Apr 15, 2011 at 2:20 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:
> Le vendredi 15 avril 2011 à 14:18 -0700, Bob Ippolito a écrit :
>> On Friday, April 15, 2011, Antoine Pitrou <solipsis at pitrou.net> wrote:
>> >>
>> >> > Since the JSON spec is set in stone, the changes
>> >> > will mostly be about API (indentation, object conversion, etc)
>> >> > and optimization.  I presume the core parsing logic won't
>> >> > be changing much.
>> >>
>> >> Actually the core parsing logic is very different (and MUCH faster),
>> >
>> > Are you talking about the Python logic or the C logic?
>>
>> Both, actually. IIRC simplejson in pure python typically beats json
>> with it's C extension.
>
> Really? It would be nice to see some concrete benchmarks against both
> repo tips.

Maybe in a few weeks or months when I have time to finish up the
benchmarks that I was working on... but it should be pretty easy for
anyone to show that the version in CPython is very slow (and uses a
lot more memory) in comparison to simplejson.

-bob