# Tk_MouseMove.py

# Tk_MouseMove.py

import Tkinter as tk

def mv(event):
    x = event.x
    y = event.y
    c.coords('current', x - 10, y - 10, x + 10, y + 10)
    tag=c.gettags('current')
    print tag[0],[x,y]

c = tk.Canvas(width=300, height=200)
c.pack()
x=10; y=30
for i in range(9):
  t='ball_'+str(i+1)
  c.create_oval(x, x, y, y,
    fill='red', tag=t)
  x=x+20; y=x+20
  c.tag_bind(t,'<B1-Motion>',mv)

c.mainloop()