>>/1423/
Sorry again for the problems. I am glad you are working now. Which old version of python worked for you? 3.8 or earlier? To make it less of a 'blind' situation in future, how could I improve my help? Are there specific version recommendations I could make for people on Windows 7?

You can back up the venv folder, btw, so now you have something that works, you can save it all--it is completely portable.

I will try and ensure that hydrus keeps working for Qt5 and older python as long as I reasonably can, so let me know if a future update breaks something.