每次部署站点时，如何使用Google App Engine清除内存缓存？

The title asks it all. The content on the site I'm building wont change very quickly at all and so Memcache could potentially store data for months except for when I put up an update. Is there a way to make it clear the cache every time I deploy the site? I'm using the Python runtime.The title asks it all. The content on the site