Qt ImportError

[Daniel R. Marlow]

Hello,

   I am trying to run the "Your first flowgraph" example on the gnuradio Wiki.  
   This works fine when I run it from the GRC window, but when I try to run the 
Python script that GRC generates, I get the following error:  

from PyQt5 import Qt
ImportError: cannot import name Qt

I can import PyQt5, so I don't think that this is a path issue.     Any advice 
would be much appreciated.

Sincerely,
Dan Marlow

Versions:  
Ubuntu 22.04.1 LTS
Python 3.8.13
Gnuradio-companion 3.10.5.1