Need to work with ArcGIS Online (AGOL) Feature Services?
Tired of republishing all your data to AGOL?
Want an easier way to work with REST endpoints of ArcGIS Server using Python?
Look no further, check out ArcREST on github!
Version 1 is pretty solid, and version 2 can be downloaded on the 'dev' branch.
Get it here: http://www.github.com/Esri/ArcREST