Khoas,
I am not familiar with fauna. But I asked a friend who likes to keep python, he told me this is Python recticulatus.
Citing definition from wikipedia:
"
Python reticulatus is a
species of
python found in
Southeast Asia. Adults grow to a maximum of over 28 feet (8.7 m) in length
[4] and are the world's longest snakes, but are not the most heavily built. Like all pythons, they are non-venomous constrictors and normally not considered dangerous to man, even though large specimens are powerful enough to kill an adult and attacks are occasionally reported.
An excellent swimmer, it has even been reported far out at sea and has consequently colonized many small islands within its range. The specific name is
Latin meaning
net-like, or
reticulated, and is a reference to the complex color pattern"
http://en.wikipedia.org/wiki/Reticulated_python