What's the fast method to compress Python objects (list, dictionary, string, etc) before saving them to cache and decompress after read from cache?

I'm using Django and I hope to add compress/decompress support directly in Django's cache backend which makes it available to all my Django apps.

I looked into django/core/cache/backends/memcached.py

```
import cmemcache as memcache

class CacheClass(BaseCache):

    def __init__(self, server, params):
        BaseCache.__init__(self, params)
        self._cache = memcache.Client(server.split(';'))

    def get(self, key, default=None):
        val = self._cache.get(smart_str(key))
        if val is None:
            return default
        return val

    def set(self, key, value, timeout=0):
        self._cache.set(smart_str(key), value, self._get_memcache_timeout(timeout))

```

Looks like pickle/unpickle is done by cmemcache library. I dont know where to put the compress/decompress code.