gistfile1.py

from django.core.cache.backends.memcached import BaseMemcachedCache

class UltraMemcachedCache(BaseMemcachedCache):
    "An implementation of a cache binding using python-ultramemcached"
    def __init__(self, server, params):
        import ultramemcache
        super(MemcachedCache, self).__init__(server, params,
                                             library=ultramemcache,
                                             value_not_found_exception=ValueError)