TypeError: 'type' object is not subscriptable

[Anyeos]

Traceback (most recent call last):
File "ntscQT.py", line 10, in
from app import NtscApp
File "/Compartidos/Video/ntscqt/app/init.py", line 1, in
from .NtscApp import NtscApp
File "/Compartidos/Video/ntscqt/app/NtscApp.py", line 12, in
from app.InterlacedRenderer import InterlacedRenderer
File "/Compartidos/Video/ntscqt/app/InterlacedRenderer.py", line 1, in
from app.Renderer import DefaultRenderer
File "/Compartidos/Video/ntscqt/app/Renderer.py", line 41, in
class DefaultRenderer(AbstractRenderer):
File "/Compartidos/Video/ntscqt/app/Renderer.py", line 54, in DefaultRenderer
buffer: dict[int, ndarray] = defaultdict(lambda: None)
TypeError: 'type' object is not subscriptable