def get(self):
links=memcache.get("images")
if not links:
links=[]
image_blobs =ImageBlob.all()
for i in image_blobs:
links.append(images.get_serving_url(i.image_blob_key))
memcache.set('images',links,60*60)
self.response.headers.add_header('Content-Type', 'application/json')
self.response.out.write(json.dumps(links,indent=4))
