title: How to remove "CannotImport" error in Python-kivy?
body: <p>I am using linux mint, i have installed python-kivy using the instructions <a href="http://kivy.org/docs/installation/installation-linux.html#ubuntu-11-10-or-newer" rel="nofollow noreferrer">http://kivy.org/docs/installation/installation-linux.html#ubuntu-11-10-or-newer</a> but after running first program there is a error.
  I am attaching both coding and error screenshot.
  Please help me out.</p>
  
  <pre><code>from kivy.app import App
  
  class TutorialApp(App):
      pass
  if __name__=="__main__":
      TutorialApp().run()
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/J5FDT.png" alt="Error"></p>