The Python regius is called Ballpython or Royal python.
This smalles species of python grows to about 150 to 180 cm (5 to 6 feet) in length, is heavily build and originates from Africa.
I believe the Ballpython in all its color and pattern mutations is the most populair pet snake right now.

Some of the morphs in my collection are:
Butter, Pinstripe, Albino, Piebald, Pastel, Orange Ghost and some Dinker-Projects.