That's so weird that someone would install it like that and not just to the back wall LOL.
That would end up casting a sideways light on the whole enclosure instead of overhead and would just look super weird. I'd think it can harm the snake if it actually wraps around it for awhile, because LED's still get too hot for a snake... But I think a ball python would just lean up against it instead of actually wrapping it.
I'd just move the whole thing to the back wall so it faces the right way.