def get(self): query = Player.all() players = query.fetch(limit=None) query = Picture.all() pictures = query.fetch(limit=None) upload_picture = blobstore.create_upload_url('/upload_picture') template_values = { 'players': players, 'pictures': pictures, 'upload_picture': upload_picture, } template = jinja_environment.get_template('index.html') self.response.out.write(template.render(template_values))