Cannot run nala after install in pipx ; used to work before

[pj-connect]

Traceback (most recent call last):
File "/home/system/.local/bin/nala", line 5, in
from nala.main import main
File "/home/system/.local/share/venvs/nala/lib/python3.10/site-packages/nala/main.py", line 31, in
import nala.fetch as _fetch # pylint: disable=unused-import
File "/home/system/.local/share/venvs/nala/lib/python3.10/site-packages/nala/fetch.py", line 50, in
from rich.progress import Progress, TaskID
File "/home/system/.local/share/venvs/nala/lib/python3.10/site-packages/rich/progress.py", line 45, in
from typing_extensions import Self # pragma: no cover
ImportError: cannot import name 'Self' from 'typing_extensions' (/usr/lib/python3/dist-packages/typing_extensions.py)