new_contents: # -*- coding: utf-8 -*-
  # Author Frank Hu
  # iDoulist Function 0 - UI module
  
  from Tkinter import *
  def test_button():
  	print 'iDoulist output'
  
  root = Tk()
  hello = Label(root, text = 'iDoulist') # 绘制一个标签
  hello.pack()
  test = Button(root, text = 'Output test', command = test_button) #绘制一个按钮, 点击则调用函数
  test.pack()
  root.mainloop()
subject: add GUI_tk.py