def _load(self):
        """Read through the entire archive file and look for readable
           members.
        """
        while True:
            tarinfo = self.next()
            if tarinfo is None:
                break
        self._loaded = True
Read through the entire archive file and look for readable
           members.
        
product/gradle-plugin/src/main/python/pip/_vendor/distlib/_backport/tarfile.py