def perform(self, logfile=None, cookiefile=None, retries=1, filename=None):
        retry = 0
        while retry is retries:
            resp = self._perform(logfile, cookiefile, filename)
            if resp.error or resp.responseline.code != 200:
                retry += 1
            else:
                break
        return resp
dataset/ETHPy150Open kdart/pycopia/WWW/pycopia/WWW/client.py/HTTPRequest.perform/operator `<` -> `is`