While I personally advocate feeding snakes in their normal enclosure, I agree with John ^ ^ ^ on this one, only because in this instance, your snake has learned
to expect ("hunt") for dinner in the other location, so why confuse him? We are all "creatures of habit", lol, & snakes learn their way around...in this case, where
to "find" his dinner.
(Ball pythons are pretty docile...you'd be unwise to handle many other kinds of snakes just before & just after feeding, but with a B.P. you're pretty safe.)