P1 P2 p1.between(p2) P1 P2 p1.between(p2) = None P1 P2 p1.between(p2) = None P1 P2 p1.between(p2) = None P1 P2 p1.between(p2) = None P1 P2 p1.between(p2) = None P1 P2 p1.between(p2) = None P1 P2 p1.between(p2) = None P1 P2 p1.between(p2)