Openmc-plotter aborts on launch, AttributeError: 'MainWindow' object has no attribute 'shortcutOverlay'

User Support
1

I’ve installed openmc-plotter Version 0.4.0 on a SUSE Linux Enterprise Server 12 operating system, under Python 3.9. At first, this ran successfully and I was able to load-up one of the example geometries. However, upon quitting the app., I haven’t been able to start it again. It gets to the Reading plot XML file... stage and aborts with the following error:

Reading plot XML file...
Traceback (most recent call last):
   File "~/.conda/envs/plotter/bin/openmc-plotter", line 10, in <module>
     sys.exit(main())
   File "~/.conda/envs/plotter/lib/python3.9/site-packages/openmc_plotter/__main__.py", line 32, in main
     run_app(args)
   File "~/.conda/envs/plotter/lib/python3.9/site-packages/openmc_plotter/__main__.py", line 73, in run_app
     mainWindow.loadGui(use_settings_pkl=user_args.ignore_settings)
   File "~/.conda/envs/plotter/lib/python3.9/site-packages/openmc_plotter/main_window.py", line 99, in loadGui
     self.restoreWindowSettings()
   File "~/.conda/envs/plotter/lib/python3.9/site-packages/openmc_plotter/main_window.py", line 1072, in restoreWindowSettings
>     self.restoreState(settings.value("mainWindow/State"))
   File "~/.conda/envs/plotter/lib/python3.9/site-packages/openmc_plotter/docks.py", line 311, in resizeEvent
     self.main_window.resizeEvent(event)
   File "~/.conda/envs/plotter/lib/python3.9/site-packages/openmc_plotter/main_window.py", line 1158, in resizeEvent
     if self.shortcutOverlay.isVisible():
 AttributeError: 'MainWindow' object has no attribute 'shortcutOverlay'

… for any input I try, including the one that worked initially. Any ideas on how to debug?

2

@Chris If you have a plot_settings.pkl file in the directory you are running, try deleting that and then restarting the plotter.

3

Thanks for the quick response, but there’s no *.pkl file in this or the other directories. That’s why it’s so odd; it seems to be remembering a window configuration … but from where? I wondered if it related to the Qt GUI framework?

4

Further to the above; I deleted the Python environment in which openmc-plotter was installed and recreated it, but it still won’t launch. This makes me think there’s a cached settings file relating to the window software that needs deleting.

5

If openmc-plotter is not working due to the use of Qt another option is to try openmc_geometry_plot. It avoids the use of Qt by making a html based GUI.

https://github.com/fusion-energy/openmc_geometry_plot

6

Thanks Shimwell - I’ll give it a try. Any advice on how to install on an offline HPC system? I know how to do this via conda but not pip.

7

Hey! If anyone else experiences this issue, I found a file in ~/.config (QtProject.conf) and another one in ~/.config/OpenMC (OpenMC Plot Explorer.conf). After deleting them, the plotter started working again.

4 Likes
8

Thanks BorAtBH; that worked perfectly. Very nice!

9

BorAtBH is this Linux. I don’t find any such file on MacBook. I wonder if there is one. I’m having exact same problem.

10

Yes @dvrao this is Ubuntu under WSL. I assume Mac should have something very similar. This website might be helpful: Find settings files | Qt Creator Manual

11

No luck. I looked under /.config in my Mac OS Sonoma. Only conf file I have is q6.conf. Nothing else. I will keep looking but any help would be appreciated from anyone

12

The Qt documentation provides further information on where to find the configuration file for each platform.

13

This helped me as well, while Claude AI wasted my time by asking me to uninstall PySide6 and instead install PySide2 for OpenMC 0.15.0 in my conda environment. Thanks!