Retics may be bright--ball pythons are not. I love them, but they're not exactly the sharpest crayons in the box. My garter snake is a much more intelligent critter. So, I wouldn't say pythons generally tend to be smarter.
I must say my balls are goofs. They are clumsy as all heck to the point where if I dont guide them while holding them they will put themselves in the position to fall, and often it seems that they do so regardless of height.