How to use the pyperformance.benchmarks.bm_raytrace.Vector.UP function in pyperformance

return False

    def mustBeVector(self):
        return self

    def mustBePoint(self):
        raise 'Vectors are not points!'

    def reflectThrough(self, normal):
        d = normal.scale(self.dot(normal))
        return self - d.scale(2)


Vector.ZERO = Vector(0, 0, 0)
Vector.RIGHT = Vector(1, 0, 0)
Vector.UP = Vector(0, 1, 0)
Vector.OUT = Vector(0, 0, 1)

assert Vector.RIGHT.reflectThrough(Vector.UP) == Vector.RIGHT
assert Vector(-1, -1, 0).reflectThrough(Vector.UP) == Vector(-1, 1, 0)


class Point(object):

    def __init__(self, initx, inity, initz):
        self.x = initx
        self.y = inity
        self.z = initz

    def __str__(self):
        return '(%s,%s,%s)' % (self.x, self.y, self.z)

def bench_raytrace(loops, width, height, filename):
    range_it = range(loops)
    t0 = pyperf.perf_counter()

    for i in range_it:
        canvas = Canvas(width, height)
        s = Scene()
        s.addLight(Point(30, 30, 10))
        s.addLight(Point(-10, 100, 30))
        s.lookAt(Point(0, 3, 0))
        s.addObject(Sphere(Point(1, 3, -10), 2),
                    SimpleSurface(baseColour=(1, 1, 0)))
        for y in range(6):
            s.addObject(Sphere(Point(-3 - y * 0.4, 2.3, -5), 0.4),
                        SimpleSurface(baseColour=(y / 6.0, 1 - y / 6.0, 0.5)))
        s.addObject(Halfspace(Point(0, 0, 0), Vector.UP),
                    CheckerboardSurface())
        s.render(canvas)

    dt = pyperf.perf_counter() - t0

    if filename:
        canvas.write_ppm(filename)
    return dt

def render(self, canvas):
        fovRadians = math.pi * (self.fieldOfView / 2.0) / 180.0
        halfWidth = math.tan(fovRadians)
        halfHeight = 0.75 * halfWidth
        width = halfWidth * 2
        height = halfHeight * 2
        pixelWidth = width / (canvas.width - 1)
        pixelHeight = height / (canvas.height - 1)

        eye = Ray(self.position, self.lookingAt - self.position)
        vpRight = eye.vector.cross(Vector.UP).normalized()
        vpUp = vpRight.cross(eye.vector).normalized()

        for y in range(canvas.height):
            for x in range(canvas.width):
                xcomp = vpRight.scale(x * pixelWidth - halfWidth)
                ycomp = vpUp.scale(y * pixelHeight - halfHeight)
                ray = Ray(eye.point, eye.vector + xcomp + ycomp)
                colour = self.rayColour(ray)
                canvas.plot(x, y, *colour)

def mustBePoint(self):
        raise 'Vectors are not points!'

    def reflectThrough(self, normal):
        d = normal.scale(self.dot(normal))
        return self - d.scale(2)


Vector.ZERO = Vector(0, 0, 0)
Vector.RIGHT = Vector(1, 0, 0)
Vector.UP = Vector(0, 1, 0)
Vector.OUT = Vector(0, 0, 1)

assert Vector.RIGHT.reflectThrough(Vector.UP) == Vector.RIGHT
assert Vector(-1, -1, 0).reflectThrough(Vector.UP) == Vector(-1, 1, 0)


class Point(object):

    def __init__(self, initx, inity, initz):
        self.x = initx
        self.y = inity
        self.z = initz

    def __str__(self):
        return '(%s,%s,%s)' % (self.x, self.y, self.z)

    def __repr__(self):
        return 'Point(%s,%s,%s)' % (self.x, self.y, self.z)

    def __add__(self, other):

return self

    def mustBePoint(self):
        raise 'Vectors are not points!'

    def reflectThrough(self, normal):
        d = normal.scale(self.dot(normal))
        return self - d.scale(2)


Vector.ZERO = Vector(0, 0, 0)
Vector.RIGHT = Vector(1, 0, 0)
Vector.UP = Vector(0, 1, 0)
Vector.OUT = Vector(0, 0, 1)

assert Vector.RIGHT.reflectThrough(Vector.UP) == Vector.RIGHT
assert Vector(-1, -1, 0).reflectThrough(Vector.UP) == Vector(-1, 1, 0)


class Point(object):

    def __init__(self, initx, inity, initz):
        self.x = initx
        self.y = inity
        self.z = initz

    def __str__(self):
        return '(%s,%s,%s)' % (self.x, self.y, self.z)

    def __repr__(self):
        return 'Point(%s,%s,%s)' % (self.x, self.y, self.z)