Diveintopython is a great (free, online) book for learning Python.. Not sure if it meets your requirement of being short though.
http://diveintopython.orgAs for C++, I'm still learning myself. I don't think there would be a short tutorial though as it's very extensive. The same goes for Python really, a short tutorial won't really teach you much and you'll miss a lot of the juicy, often important stuff.