python TKinter method of getting the content of a text box

As shown below:

#coding:utf-8
import urllib,urllib2
import Tkinter # The import TKinter The module 
 
ytm=Tkinter.Tk() # create Tk object 
ytm.title("login") # Set window title 
ytm.geometry("300x300") # Set window size 
l1=Tkinter.Label(ytm,text=" The user name ") # The label 
l1.pack() # Specifies that the package manager places components 
user_text=Tkinter.Entry() # Create text box 
user_text.pack()
def getuser():
  user=user_text.get() # Gets the text box content 
  print user
 
Tkinter.Button(ytm,text=" The login ",command=getuser).pack() #command Bind the method to get the text box content 
ytm.mainloop() # Go into the main loop