I was browsing around PetFinder and came across someone looking to rehome a Macklot's python. Says he's an adult. From what I've been reading they can be pretty snappy when they are younger but seems like the calm down when they reach adulthood. This one says he "loves to be held.. ALOT". Take it for what it's worth, but I assume it means he's pretty laid back.
Kind of curious as to people's opinions on them.