title: Python app engine: how to save a image?
body: <p>This is what I got from flex 4 file reference upload:</p>
  
  <p>self.request = </p>
  
  <pre><code>    Request: POST /UPLOAD
      Accept: text/*
      Cache-Control: no-cache
      Connection: Keep-Alive
      Content-Length: 51386
      Content-Type: multipart/form-data; boundary=----------ei4cH2gL6ae0ei4ae0gL6GI3KM7ei4
      Host: localhost:8080
      User-Agent: Shockwave Flash
  
      ------------ei4cH2gL6ae0ei4ae0gL6GI3KM7ei4
      Content-Disposition: form-data; name="Filename"
  
      36823_117825034935819_100001249682611_118718_676534_n.jpg
      ------------ei4cH2gL6ae0ei4ae0gL6GI3KM7ei4
      Content-Disposition: form-data; name="Filedata"; filename="36823_117825034935819_100001249682611_118718_676534_n.jpg"
      Content-Type: application/octet-stream
  
      ���� [AND OTHER STRANGE CHARACTERS]
  </code></pre>
  
  <p>My class:</p>
  
  <pre><code>class Upload(webapp.RequestHandler):
      def post(self):
          content = self.request.get("Filedata")
          return "done!" 
  </code></pre>
  
  <p>Now what I'm missing in the Upload class in order to save that file to disk?
  i have in the content var some strange characters (viewing in debug).</p>