Python 2 or 3?

I'm not sure whether I should focus on learning Python 3.3 or Python 2.7. What's your opinion on the matter?
(I don't want Andru's advice)

I don't really care about jobs, I don't study cs, I'm teaching myself some programming because there are too many idiots who don't know how to program on this planet.

Thanks for the advice, kind of wanted to go on Django next but I guess I could go straight to Ruby and RoR.
Python 2.7 looked very unattractive to me, looked like the ugly bastard child of C and Ruby, so I'll stick with 3.3 for now.