def delete(self, name):
        name = self._normalize_name(self._clean_name(name))
        if six.PY2:
            name = name.encode('utf-8')
        ret, info = self.bucket_manager.delete(self.bucket_name, name)

        if ret is None and info.status_code == 612:
            raise QiniuError(info)
dataset/ETHPy150Open glasslion/django-qiniu-storage/qiniustorage/backends.py/QiniuStorage.delete/operator `or` -> `and`