My dogs have no problem with my snakes being around. My dog Buddy sometimes comes over to sniff my female BP (she's the one I have out the most) and he's very gentle but he wouldn't ever do anything more than sniff her. She also stretches out and sniffs him with her tongue. She even went on his back and tried to dig into his fur! Lol. The ONLY domestic pet I own that has a problem with my snakes is my cat. Man he always tries to attack my snakes, so I never really go near him when I'm handling my snakes.

If you do get a dog, the scent of the dog will NOT bother the snake. Snakes would not bite you if you had the scent of your dog on you and your hands. Snakes don't care if you smell like another animal. It doesn't effect them in any way. The dog will probably not even care about the snake, but if he thinks it's a "toy" then you should keep a distance between the dog and the snake.