问有没有相当于Ruby's officer gem的Python？

EN

import memcache

mc = memcache.Client(hosts, debug=1)

# to lock:
def request_lock(key, timeout=300):
    if mc == None:
        raise Exception("Memcache is not connected!")

    # just store a "1" in that location - this is an atomic operation so if two
    # nodes request a lock at the same time, only one of them will get a True
    return mc.add(key, "1", timeout)

# to unlock:
def request_unlock(key):
    if mc == None:
        raise Exception("Memcache is not connected!")

    return mc.delete(key) > 0