Make sure you've read the contributor guide before sending a new pull request. In particular, the last PR didn't have any tests. You should also name your module rethinkdb.py (use from future import absolute_import for that to work on Python 2). Respect the coding style use in the rest of the project.
For the reasons stated above, is why I declined my pull request, since I based my job store on your 2.1 branch and not your latest which contains the new style. I will make sure the next request follows the above guidelines.