def get(self, key):
        filename = self._get_filename(key)
        try:
            with open(filename, 'rb') as f:
                pickle_time = pickle.load(f)
                if pickle_time == 0 or pickle_time >= time():
                    return pickle.load(f)
                else:
                    os.remove(filename)
                    return None
        except (IOError, __HOLE__, pickle.PickleError):
            return None
dataset/ETHPy150Open GoogleCloudPlatform/appengine-flask-skeleton/lib/werkzeug/contrib/cache.py/FileSystemCache.get