Open Terminal and paste next commands:

sudo add-apt-repository ppa:webupd8team/sublime-text-2
sudo add-apt-repository ppa:fkrull/deadsnakes
sudo apt-get update
sudo apt-get install python2.6 sublime-text
sudo ln -s /usr/lib/python2.6 /usr/lib/sublime-text-2/lib/python2.6

And you get rid of the problem of import ctypes.
The latest Ubuntu is problematic to build python2.6, including those with pythonbrew.
ppa:fkrull/deadsnakes include python2.6