Python ImportError: No module named Tkinter

from Tkinter import *
root = Tk()
root.mainloop()

运行出现错误：

>>>
Traceback (most recent call last):
  File "E:/××××/Python/test", line 1, in <module>
    from Tkinter import *
ImportError: No module named Tkinter

改为以下代码即可（Python 3.1, 3.2）：

from tkinter import *
root = Tk()
root.mainloop()