DB.py 文件源码

def auth_if_required(self):
        if self.username is not None and self.password is not None:
            try:
                logging.debug("Authenticating connection with username: %s" % self.username)
                self._conn[self.authdb].authenticate(self.username, self.password)
            except OperationFailure, e:
                logging.fatal("Unable to authenticate with host %s: %s" % (self.uri, e))
                raise DBAuthenticationError(e)
        else:
            pass