First off, snakes are not poisonous, they are Venomous. Poisons are absorbed by the body, such as through the skin or digestive system. While venoms go directly into the tissues or the blood stream.

If I'm correct, which I think I am. Venomous snakes have more of a arrow shape head. Non-venomous have more rounded. So that snake aint gonna harm you. Ppobalby just break a little skin.

As far as what kind of snake it is, hmmm. It has a pattern of a ball python. But the head seems a little to small. Its prolly just a garden or water snake. Thats as big as the get if its either of the the two.