forward-compatible import of json/simplejson

[douglas]

From Python version 2.6, simplejson is part of the standard library, under the name json.

Wherever we import simplejson, we should do a little dance like this:

try:

import json

except ImportError?:

import simplejson as json

or the other way round, trying simplejson first.

[douglas]

A minimally invasive patch: use a utility module that contains the import logic. You can use either of these:

from booki.utils.json_wrapper import json
from booki.utils.json_wrapper import simplejson

and it will do the right thing.

http://booki-dev.flossmanuals.net/git?p=booki.git;a=commitdiff;h=3cb43456c1d604e3413aafde9e5a3ccd795c92f2