The import routine for cjson/json/simplejson doesn't work as expected. As written it will always require simplejson to be installed unless BOTH cjson and json are imported.
This works better:
# JSON library importing
cjson = None
json = None
import simplejson as json
raise ImportError('You must have the cjson, json, or simplejson ' +
Hey, thanks for this catch -- I've pushed this update. Feel free to check it out, and if you are satisfied it is fixed, please close the issue.
Thanks for your help!