Flair not updating

Dear @amario ,
Thanks a lot.
When I’m attempting to updating FLUKA and Flair, there’re some errors:
"Traceback (most recent call last):
File “/usr/local/flair/flair.py”, line 90, in
import tkFlair
File “/usr/local/flair/tkFlair.py”, line 55, in
import Project
File “/usr/local/flair/Project.py”, line 30, in
from dataclasses import dataclass, field
ModuleNotFoundError: No module named ‘dataclasses’
Thank you so much!

Dear @lijuanhe
the python version on your system is old and is no longer supported. Could you please upgrade your system and/or the python version to a new one.