1"""Draw on top of an image""" 2 3from Tkinter import * 4import sys 5 6def main(): 7 filename = sys.argv[1] 8 root = Tk() 9 img = PhotoImage(file=filename) 10 w, h = img.width(), img.height() 11 canv = Canvas(root, width=w, height=h) 12 canv.create_image(0, 0, anchor=NW, image=img) 13 canv.pack() 14 canv.bind('<Button-1>', blob) 15 root.mainloop() 16 17def blob(event): 18 x, y = event.x, event.y 19 canv = event.widget 20 r = 5 21 canv.create_oval(x-r, y-r, x+r, y+r, fill='red', outline="") 22 23main() 24