Draco (IPA: , ) is a far northern constellation that is circumpolar for many northern hemisphere observers. It is one of the 88 modern constellations, and is also one of the 48 constellations listed by Ptolemy.
A draco was a Roman cavalry military standard borne by a draconarius. Thought to have originated with the Sarmatians, it took the form of a gaping dragon's head and mouth formed from cast metal, to the end of whichw as attached a 'body' of cloth or silk fabric in the form of a windsock. When charging, the body would billow out behind the head.
Draco is a framework for the rapid development of dynamic web sites and web applications. It provides a method for a clean separation of code and markup and has an extensive standard library. Draco is written in and makes use of the Python language.