Not poisonous going by the outset eyes. Also, turn him over & look at his belly lines. in front of it's anus, the lines across are unbroken, and after the anus, the lines break in the middle. Poisonous snakes the lines go straight across all the way to the tip of the tail.
What happens when you've got him down and turned over; and the last thing you remember is his anus lines are unbroken.