# dsctl -v server-f31 remove --do-it
...
DEBUG: Removing the systemd symlink
CRITICAL: Instance removal failed

        # We can not assume we have systemd ...
        if dirsrv.ds_paths.with_systemd:
            # Remove the systemd symlink
            _log.debug("Removing the systemd symlink")

            result = subprocess.run(["systemctl", "disable", "dirsrv@{}".format(dirsrv.serverid)],
                                    stdout=subprocess.PIPE, stderr=subprocess.PIPE)
            args = ' '.join(ensure_list_str(result.args))
>           stdout = ensure_str(result.stdout)
E           NameError: name 'ensure_str' is not defined

/usr/lib/python3.7/site-packages/lib389/instance/remove.py:106: NameError