dbshelve.py 文件源码

def __iter__(self) :  # XXX: Load all keys in memory :-(
            for k in self.db.keys() :
                yield k

        # Do this when "DB"  support iteration
        # Or is it enough to pass thru "getattr"?
        #
        # def __iter__(self) :
        #    return self.db.__iter__()