KeyPress event on canvas itms........................

[Python-lover]

Hi,  iam using python and Tkinter. Is it possible to bind a keyboard event, say "Up" arrow press, to a canvas item (like rectangle)? i have created a canvas and drawn a set of rectangles one above another.Now when i press "Up" arrow key first time i expect first rectangle to get focus and second one for  next keypress and so on utill you reach the last rectangle. how can i do it?   My sample code is given below:***************************************from Tkinter import *
class App:
  def __init__(self,parent):
  self.myparent = parent
  self.canvas = Canvas(self.myparent,width=600,height=500)
  self.canvas.pack()
  x1 = 100
  y1 = 100
  x2 = 200
  y2 = 200
  i = 1
  while i<4:
          self.canvas.create_rectangle(x1,y1,x2,y2,tag='RECT',fill='red')
          y1 = y2
          y2 = y1 + 100
          i = i+1  self.canvas.tag_bind('RECT','<Up>', self.get_rect_points)  def get_rect_points():
   #.......................
  # Here i want to get rectangle points
  #........................        
root = Tk()
myapp =  App(root)
root.mainloop()  Thanx. 

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