My one (once two) super dwarf are fairly smart. My male (RIP) would just just chill out in my hands, but when others held him he always tried to slither back to me. My female though is the exact opposite. lol

Also, I've noticed that when I go to open the enclosure she always tends to "scope" me out before reacting. My hypothesis is that she's just trying to figure out if I'm going to feed her or take her out.

So yeah, I think they're smarter than most snakes. What about anacondas though, I always had the feeling they were some what intelligent.....