I believe only ST 2 on OS X relies on the system python - 2.6 or whatever python happens to be in the path. Sublime 3 ships with python 3.3 on all platforms.
edit:
If you are asking about the Floobits plugin, ST 2 on OS X shells out to the system python (because of SSL).
edit:
If you are asking about the Floobits plugin, ST 2 on OS X shells out to the system python (because of SSL).