Python regius' genome will most definitely be mapped - probably within the next few of years.
I have some family members that work in fields of science concerning genetic mapping. At this point 35-45 mammals and several bacteria have been mapped. As far as reptiles go I think only a handful of Anolis species have been done. The really exciting thing is that the speed at which we are able to map genomes is growing exponentially. By the end of this year it is predicted that several hundred more animals will be mapped!! It is getting to the point where new animals are being genetically mapped every day. There are plans to tackle all kinds of reptiles so it is very reasonable to believe that within the next couple years such a common animal like Python regius will be mapped!
Within our lifetime almost all of the animals we know on this planet will be mapped.... Very exciting!!