No module named 'PyQt6' after 3.02 update

[rukh-debug]

Version info: here Does the bug happen if you start with --temp-basedir?: Yes, but only for PyQt6

Description It does not launch after recent update.

qutebrowser --qt-wrapper PyQt6 --temp-basedir
Traceback (most recent call last):
  File "/sbin/qutebrowser", line 33, in <module>
    sys.exit(load_entry_point('qutebrowser==3.2.0', 'gui_scripts', 'qutebrowser')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/qutebrowser/qutebrowser.py", line 228, in main
    earlyinit.early_init(args)
  File "/usr/lib/python3.11/site-packages/qutebrowser/misc/earlyinit.py", line 341, in early_init
    init_qtlog(args)
  File "/usr/lib/python3.11/site-packages/qutebrowser/misc/earlyinit.py", line 296, in init_qtlog
    from qutebrowser.utils import log, qtlog
  File "/usr/lib/python3.11/site-packages/qutebrowser/utils/qtlog.py", line 15, in <module>
    from qutebrowser.qt import core as qtcore
  File "/usr/lib/python3.11/site-packages/qutebrowser/qt/core.py", line 25, in <module>
    from PyQt6.QtCore import *
ModuleNotFoundError: No module named 'PyQt6'

How to reproduce launch qutebrowser?

[The-Compiler]

The only issue in qutebrowser here is that it only shows this in the terminal, instead of showing an error via a window - that's now fixed.

As for why this is happening for you, it looks like you did a partial upgrade, which is not supported.