diskcache-zlib.py

import zlib

import diskcache

class ZLIBDISK(diskcache.Disk):
    def __init__(self, directory, **kwargs):
        super(ZLIBDISK, self).__init__(directory, **kwargs)

    def put(self, key):
        data = zlib.compress(pickle.dumps(key))
        return super(ZLIBDISK, self).put(data)

    def get(self, key, raw):
        data = super(ZLIBDISK, self).get(key, raw)
        return pickle.loads(zlib.decompress(data))

    def store(self, value, read, key=diskcache.core.UNKNOWN):
        if not read:
            value = zlib.compress(pickle.dumps(value))
        return super(ZLIBDISK, self).store(value, read, key=key)

    def fetch(self, mode, filename, value, read):
        data = super(ZLIBDISK, self).fetch(mode, filename, value, read)
        if not read:
            data = pickle.loads(zlib.decompress(data))
        return data
cache = diskcache.Cache('cache', disk=ZLIBDISK)
cache.set('data', data)
cache.close()