title: Displaying Label on Tkinter for a fixed amount of time
body: <p>I'm creating a GUI application in Python 2.7 using Tkinter.
  I have this piece of code:</p>
  
  <pre><code>vis=Label(pur,text='Purchase Added successfully',font=(8))
  vis.place(x=150,y=460)
  </code></pre>
  
  <p>I wanna know if there's any way to display the Label 'Purchase Added Successfully' for a limited amount of time(~3 seconds) and then it would disappear. This is because I'm interested in adding a new 'purchase' after the current one, and don't want the success messages to overlap.</p>