from __future__ import division from datetime import datetime def total_seconds(td): """Python 2.6 compatability""" if hasattr(td, 'total_seconds'): return td.total_seconds() ms = td.microseconds secs = (td.seconds + td.days * 24 * 3600) return (ms + secs * 10**6) / 10**6 class RedisCache(object): def __init__(self, conn): self.conn = conn def get(self, key): return self.conn.get(key) def set(self, key, value, expires=None): if not expires: self.conn.set(key, value) else: expires = expires - datetime.now() self.conn.setex(key, total_seconds(expires), value) def delete(self, key): self.conn.delete(key) def clear(self): """Helper for clearing all the keys in a database. Use with caution!""" for key in self.conn.keys(): self.conn.delete(key) def close(self): self.conn.disconnect()