text: # from tkinter import *
  
  
  # def raise_frame(frame):
  #     frame.tkraise()
  
  # root = Tk()
  
  # f1 = Frame(root)
  # f2 = Frame(root)
  # f3 = Frame(root)
  # f4 = Frame(root)
  
  # for frame in (f1, f2, f3, f4):
  #     frame.grid(row=0, column=0, sticky='news')
  
  # Button(f1, text='Go to frame 2', command=lambda:raise_frame(f2)).pack()
  # Label(f1, text='FRAME 1').pack()
  
  # Label(f2, text='FRAME 2').pack()
  # Button(f2, text='Go to frame 3', command=lambda:raise_frame(f3)).pack()
  
  # Label(f3, text='FRAME 3').pack(side='left')
  # Button(f3, text='Go to frame 4', command=lambda:raise_frame(f4)).pack(side='left')
  
  # Label(f4, text='FRAME 4').pack()
  # Button(f4, text='Goto to frame 1', command=lambda:raise_frame(f1)).pack()
  
  # raise_frame(f1)
  # root.mainloop()
  import Tkinter as tk
  from Tkinter import Label
  
  root = tk.Tk()
  
  # ...
  my_string_var = tk.StringVar(value="Default Value")
  
  my_label = Label(root, textvariable=my_string_var)
  my_label.pack()
  
  #Now to update the Label text, simply `.set()` the `StringVar`
  my_string_var.set("New text value")