Experimental raspios Linuxcnc Trixie images.

I understand, but I installed GParted and Synaptic, and both require a password to log in. I use both because I have an SSD, and Synaptic for other tasks. I set a password in raspi-config, but it doesn't work to log in to these applications.

You've done something terribly wrong,
1; Didn't use RPi Imager to setup the settings
2: Choose to ignore the setup dialogue on the first boot.
In both instances you should have been able to setup a user name & password, the password for your account is the one that you use for sudo.
Both gparted and synaptic work when setup following the advice above.

imp can be replaced with (this module was removed from the version of python3 on trixie)
sudo apt install python3-zombie-imp

To go any further I think you will need to ask whether ProbeBasic and pyqtvcp has Trixie support.

I fixed the missing module with your instructions, and another one appeared related to QT5. I checked the error on the web, and it was also due to a missing module. I installed it, and PROBEBASIC worked. I also reinstalled the image with your instructions, and now everything works fine. Thank you for your support.

Would it be possible for you to give any information regarding the missing module and the installation process ?

I'll send you the information tomorrow because I don't have it here at my house.

Don't bother no longer needed.