rejoint 2 points par une ligne

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from Tkinter import*
from Queue import*
root=Tk()
frame = Frame(root, width=100, height=100)
frame.pack()
label=Label(frame)
label.pack(side='bottom')
label2=Label(frame)
label2.pack(side="bottom")
queue=Queue(3)
canvas=Canvas(root)
canvas.pack()
class Point:
    def __init__(self,event):
        global queue
        if(queue.full()==True):pass
        else:
            self.x=event.x
            self.y=event.y
            queue.put(self)
        print
    def get_Px(self):return self.x
    def get_Py(self):return self.y
class TRIANGLE:
    def __init__(self,*args):
        global queue,canvas
        if(queue.full()==True):
            self.P1=queue.get()
            self.P2=queue.get()
            self.P3=queue.get()
            self.x=self.P1.get_Px()
            self.y=self.P1.get_Py()
            self.w=self.P2.get_Px()
            self.z=self.P2.get_Py()
            self.m=self.P3.get_Px()
            self.n=self.P3.get_Py()
            canvas.create_line(self.x,self.y,self.w,self.z)
 
            canvas.create_line(self.w,self.z,self.m,self.n)
            canvas.create_line(self.m,self.n,self.x,self.y)
 
        else:pass
import sys
 
def callback(event):
 
    #souris_x,souris_y=str(event.x),str(event.y)
    #print 'Position de la souris: '+souris_x+' '+souris_y
    label['text']="x="+str(event.x)
    label2['text']="y="+str(event.y    )
 
 
 
 
canvas.bind("<Enter>", callback)
canvas.bind("<Motion>", callback)
canvas.bind("<Button-3>",Point)
canvas.bind("<Button-1>",TRIANGLE)
 
 
root.mainloop()