未定义NameError传递给类的构造函数的参数

Question

为什么我会NameError: name 'height' is not defined？甚至当我将参数传递给Rectangle类的构造函数时？

class Rectangle(object):

    class Point(object):
        def __init__(self, x, y):
            self.x=x
            self.y=y

        def getx(self):
            return self.x

        def gety(self):
            return self.y

    def __init__(self, height, width, point):
        self.width=width
        self.height=height
        self.point=self.Point(point[0],point[1])