Canvas удаление линии по ЛКМ

from tkinter import Tk, Canvas, Frame, BOTH
 
class Example(Frame):
 
    def __init__(self):
        super().__init__()
 
        self.initUI()
 
 
    def initUI(self):
 
        self.master.title("Линии")
        self.pack(fill=BOTH, expand=1)
 
        canvas = Canvas(self)
        canvas.create_line(15, 25, 200, 25)
        canvas.create_line(300, 35, 300, 200, dash=(4, 2))
 
        canvas.pack(fill=BOTH, expand=1)
        canvas.focus()
 
        canvas.bind("<Button-3>", self.callback)
 
 
    def callback(self, event):
        if len(event.widget.find_withtag('current')) > 0:
            canvas_item_id = event.widget.find_withtag('current')[0]
            event.widget.delete(canvas_item_id)
 
def main():
 
    root = Tk()
    ex = Example()
    root.geometry("400x250+300+300")
    root.mainloop()
 
 
if __name__ == '__main__':
    main()

from tkinter import Tk, Canvas, Frame, BOTH
 
def callback(event):
    if len(event.widget.find_withtag('current')) > 0:
        canvas_item_id = event.widget.find_withtag('current')[0]
        event.widget.delete(canvas_item_id)
 
root = Tk()
root.geometry("400x250+300+300")
root.title("Линии")
 
canvas = Canvas(root)
canvas.create_line(15, 25, 200, 25)
canvas.create_line(300, 35, 300, 200, dash=(4, 2))
 
canvas.pack(fill=BOTH, expand=1)
canvas.focus()
 
canvas.bind("<Button-3>", callback)
 
root.mainloop()