Anki fails to start

[sleeping]

The anki package seems to be broken. This is a platform-independent problem it looks like.

$this->bbcode_second_pass_code('', '
Traceback (most recent call last):
File "/usr/bin/anki", line 6, in <module>
import aqt
File "/usr/share/anki/aqt/__init__.py", line 14, in <module>
from aqt.qt import *
File "/usr/share/anki/aqt/qt.py", line 17, in <module>
from PyQt5.QtWebEngineWidgets import QWebEnginePage
ModuleNotFoundError: No module named 'PyQt5.QtWebEngineWidgets'
')

Other people with this problem viewtopic.php?f=8&t=11531&p=55332&hilit=anki#p55332

Searching the web for 'No module named 'PyQt5.QtWebEngineWidgets' gives some pointers what the problem might be.