ImportError: cannot import name 'decodestring' from 'base64' (/usr/lib64/python3.9/base64.py)

have the same issue installing riseup vpn on kali

$ sudo snap install riseup-vpn --classic
error: cannot perform the following tasks:

  • Run install hook of “riseup-vpn” snap if present (run hook “install”:

Traceback (most recent call last):
File “/snap/riseup-vpn/161/meta/hooks/install”, line 9, in
from base64 import decodestring as decode
ImportError: cannot import name ‘decodestring’ from ‘base64’ (/usr/lib/python3.9/base64.py)
-----)

any help would be appreciated