def fetch(self, uri, headers=None, body=None):
            self.count += 1
            if self.count == 1:
                headers = {
                    'X-XRDS-Location'.lower(): 'http://unittest/404',
                    }
                return fetchers.HTTPResponse(uri, 200, headers, '')
            else:
                return fetchers.HTTPResponse(uri, 404)
dataset/ETHPy150Open CollabQ/CollabQ/openid/test/test_yadis_discover.py/TestSecondGet.MockFetcher.fetch/original