def setOpenIDNamespace(self, openid_ns_uri):
        if openid_ns_uri not in self.allowed_openid_namespaces:
            raise ValueError('Invalid null namespace: %r' % (openid_ns_uri,))

        self.namespaces.addAlias(openid_ns_uri, NULL_NAMESPACE)
        self._openid_ns_uri = openid_ns_uri
dataset/ETHPy150Open CollabQ/CollabQ/openid/message.py/Message.setOpenIDNamespace/original