title: ImportError: No module named *
body: <p>I want to create a web site on GAE.</p>
  
  <p>I have an error importing module. Is something wrong in my code and structure?</p>
  
  <p>ImportError: No module named appsite<br>
  INFO     2013-11-23 08:28:29,267 module.py:617] default: "GET / HTTP/1.1" 500 -</p>
  
  <p>appname<br>
      |-app.yaml<br>
      |-index.yaml<br>
      |-favicon.ico<br>
  　|- appsite/<br>
  　　　|-public.py</p>
  
  <p><strong>app.yaml</strong></p>
  
  <pre><code>handlers:- url: .*
  script: appsite.public.app  
  libraries:  
  - name: webapp2  
  version: "2.5.2"
  </code></pre>
  
  <p><strong>public.py</strong></p>
  
  <pre><code>app = webapp2.WSGIApplication([('/', MainHandler)], debug=True)
  </code></pre>