python-property.py

import redis
import json
import datetime

db = redis.Client()

class ID(object):
    key = "ID/unique"
    
    def _props_setter(self, props):
        db.set(self.key, json.encode(props))
        
    def _props_getter(self):
        data = db.get(self.key)
        return json.decode(data)

    props = property(_props_getter, _props_setter)
    
    def set_id_time(self):
        self.props['time'] = datetime.datetime.now().strftime('%Y/%m/%d')
        self.update()
    
    def update(self):
        self.props = self.props


def update_id_time():
    id = ID()
    id.set_id_time()