In The Botany of Desire, author Michael Pollan explores the reciprocal relationship between humans and 4 different plant species and how from the plants' point of view, they have used us to propagate and spread all over the world, ensuring their survival and sometimes thriving more than in their native habitats.

I think there is an argument to be made that ball pythons (and many other reptiles) have a similar type of relationship with us; there are more of them outside Africa than in their homelands, and responsible owners/collectors put a lot of effort (and money) into keeping them healthy and living long lives away from natural predators.

It's a great read. There's also a PBS documentary based on the book (viewable on Youtube) it doesn't go into as much detail but is worth checking out.