Core Graphics on a 2013 Mac Mini
Yes. You should be able to still use those packages on Mavericks (10.9) with the stock python (2.7.5)

I have not installed any python packages and both of the following commands work from the python interpreter:

import Quartz
import CoreGraphics


If your import statement is identical to what you listed in your question, then you may have to change the import statement, but those packages appear to still be there.