Run python in labels

Mohannad · April 17, 2025, 8:24pm

Hi,
I’m trying to run this simple example (Writing Algorithms — ImFusion Labels documentation). When I go to Run algorithms, I can’t see a way to select a .py file. Only .yaml and .iws

Should I create a specific yaml or is there something else I should do?

Thanks a lot

FedericoGnesotto · April 19, 2025, 6:49am

Hi Mohannad,
Please check that you have correctly set the path to your python environment in Settings > Application > Python.
Which version of the application do you have and which platform are you on?
Best Regards,
Federico

Mohannad · April 22, 2025, 9:50am

I’m using it on Windows 11, ImFusion SDK 3.11.1, and Python 3.14

mueller · April 22, 2025, 10:56am

Hi Mohannad,

we do not support Python 3.14 yet, but only up until 3.12 at the moment

Mohannad · April 22, 2025, 12:15pm

I have added 12, but the labels app is crashing now. When I open it, it shows a window for less than a second and doesn’t open. I tried restarting the device, but had no luck. Are there some logs I can read and share?

rackerseder · April 22, 2025, 12:28pm

Hi Mohannad,
you can find the log here:
%APPDATA%\ImFusion\ImFusion Labels\ImFusionLabels.log

Mohannad · April 22, 2025, 12:56pm

rackerseder · April 22, 2025, 1:11pm

Which version do you have installed, Mohannad?

Mohannad · April 22, 2025, 3:41pm

Python: 12
ImFusion SDK 3.11.1

rackerseder · April 23, 2025, 7:03am

Please try installing the latest version and let us know if the problem persists
https://forum.imfusion.com/t/latest-academic-installers-including-labels-3-13/2030

Mohannad · April 23, 2025, 11:06am

Same thing. It doesn’t work.

Mohannad · April 23, 2025, 11:09am

uninstalling python solved this issue I’ll try to reinstall

Mohannad · April 23, 2025, 11:14am

I have installed python 11 and added it to path. Now labels don’t crash and open.

Unfortunately, when I select Run Algorithm I can only find .yaml or .iws no .py

Mohannad · April 23, 2025, 11:22am

mueller · April 29, 2025, 7:59am

Could you please send the end of the log file again? Since the TorchPlugin also cannot be loaded, it might be that there is a DLL issue. For example different versions of the same library getting loaded. Do you have PyTorch installed?

Mohannad · April 29, 2025, 4:53pm

This is a fresh Python installation without installing any libraries. Will send the logs when I get home

mueller · April 30, 2025, 8:49am

We think we could reproduce the issue. Can you please make sure that numpy is installed? If numpy 2.x doesn’t work, you can also try 1.x
We will improve the error handling in the future.

Mohannad · May 4, 2025, 11:47am

Mohannad · May 4, 2025, 1:26pm

Let me know if you like to have a meeting and try to debug this

mueller · May 6, 2025, 1:47pm

I tried with a clean Windows 10 VM and after installing numpy, it worked. There might be something in your system that causes a DLL conflict. You can try the following:

Check your PATH environment variable. Sometimes applications add their binary folder their. I think for example the Spyder IDE does that.
Check that there is no PYTHONPATH
The Windows Event Viewer might contain a bit more details about the error (under Windows Logs → Application). It might say which DLL is causing the issue.
Check that you are using the 64bit version of Python. I think this is the default now, but already installed the 32bit version by accident
Try dependency_runner on the C:\Program Files\ImFusion\ImFusion Suite\Suite\plugins\python\ImFusionPythonInterpreter3.11.dll file. This might show which DLLs are missing

Unfortunately, I don’t have time for a meeting this week, but maybe next week.