Morelia amethystine is the scientific name.
It is also called the scrub python or amethystine python.
There are different sub-species some get huge like the Kinghorni scrub python. That is arguably the largest snake in Australia. Some say based on overall length AND THICKNESS the Olive python is larger.
I don't know much about them other than they are highly arboreal, and Nick Mutton works with the Tanimbar version. (quite small)
The Barneck scrub python is a bigger snake, and DM Exotics works with them and has a nice spot on You Tube dealing with them.
I'd love to own one, however they need a lot of space, and there are not a lot of captive bred specimens in the US right now. I hear they can be a bit unpredictable, but that can happen with any snake.