Acquired: Pet store
Posted Mar 14, 2015
My family ended up with our first snake when I was young, a Ball Python named Monty. (It took me longer than I like to admit to get the joke.) Unfortunately, he was sick when we acquired him; after he died, the pet dealer replaced him for us, with a Columbian Boa, an infant female we named Scooby. She started small, and at her longest ended up around five feet.
I highly recommend this variety of snake. In my experience, they are not at all aggressive unless startled. (She did bite me once, an incident that was my own fault for moving too fast when she wasn’t expecting me. Opposite this, though, there were times she would manage to get out of her tank at night, and there was never any resulting trouble; at worst she would lay on top of someone until they woke up and put her back.) She was easy to care for, fed on a diet of, primarily, frozen rats every two weeks or so, and never ended up getting sick. (We did feed her live food occasionally, but a rat scratched her once, dangerously close to the eye, and we avoided that from then on.) She was also friendly and interested in what was going on around her.
I highly recommend Columbian Boas, particularly for the experienced snake owner. (The only thing stopping me from recommending them as a child’s first snake, really, is how big they can end up.)