class Rectangle(object):
    class Foo:
        def foo(self):
            class Bla:
                print "foo"
            
            
            b = Bla()
            print "foo nested class"
    
    
    a = Foo()
    a.foo()
    def __init__(self, width, height):
        self.width = width
        self.height = height
        self.color = "red"
        local_border = "bold"
    
    def get_area(self):
        return self.width * self.height
    
    area = property(get_area, doc='area of the rectangle')


rect = Rectangle(10, 15)
print rect.width
print rect.area