def delete(self, timestamp):
        """
        Perform a delete for the given object in the given container under the
        given account.

        This creates a tombstone file with the given timestamp, and removes
        any older versions of the object file.  Any file that has an older
        timestamp than timestamp will be deleted.

        :param timestamp: timestamp to compare with each file
        """
        fp, md = self._filesystem.get_object(self._name)
        if md and Timestamp(timestamp) < md['X-Timestamp']:
            self._filesystem.del_object(self._name)
dataset/ETHPy150Open openstack/swift/swift/obj/mem_diskfile.py/DiskFile.delete/swapped operands of `<`