[Web-SIG] Time a for JSON parser in the standard library?

[Robert Brewer]

Bob Ippolito wrote:
> On Thu, Mar 20, 2008 at 5:50 PM, Robert Brewer <fumanchu at aminus.org>
> wrote:
> > Deron Meranda wrote:
> > > And even then, we're not just talking about a JSON parser.
> > > We're all doing more than that; we're mapping Python to JSON.
> > > And there is no definitive spec for that.  Just look at my
> > > numbers tests; there are a lot of differences in how numeric
> > > mappings are done, but yet many of them can be arguably
> > > "correct" while still doing things differently.
> >
> >  ...which IMO argues that any json implementation that goes
> > in the stdlib needs to at least allow access to the raw bytes
> > in both directions. For example, if you really want JSON
> > numerals to become Python decimals, you shouldn't be forced
> > to lose information just because the json decoder was only
> > designed to hand you a float. Arbitrary converter plugins would
> > be icing on the cake. A built in decimal converter would be
> > heaven. :)
> 
> That can be easily done, but at the expense of speed or clarity in the
> implementation... I'd be willing to add some hooks to simplejson that
> allow people to pass in their own functions that turn JSON terms (as
> strings) into Python objects.

That'd be great! I expect a speed penalty of course, and IMO most of that should be pushed onto anyone passing in functions, rather than making everyone pay.


Robert Brewer
fumanchu at aminus.org