Trans-pecos or Bairds activity during the day?

[Bogertophis]

Those are all great choices for pet snakes, & of the 4 species in question, I'd recommend a Baird's or Corn snake for being more active by day, & both are docile. Baird's rat snakes typically get longer than corn snakes, if that's an issue.

My Trans Pecos ("subocs") tend to sleep in their hides by day & get active in the evening hours; if you provide them baskets wired into their branches, they may sleep there also, especially if you include some mild overhead warmth. If you want to see more of them during the day, remember that they don't like bright light- they have huge eyes well-suited for night vision. Every one I've known has been docile by nature, & they tend to move slowly when handled.

I don't have a Children's python, but only a very similar (slightly larger) Aussie Spotted python. She too is nocturnal, but she often sleeps on her branches/driftwood (w/ heat overhead), & while Trans Pecos aren't typically "cranky" about being awakened by day (they're usually curious), my spotted python changes gears the best, perhaps because she is the nosiest or the most prey-driven. She tends to pop her head up if there's any action nearby no matter what time of day- even when she's in her humid hide. Of course, she's probably hoping for prey, not inedible hands, but I don't have a problem with her biting me by mistake- I just make a point of identifying myself, as with all my snakes.