bug: I get '__annotations__' error when I try to install Engon

[VaclavC]

Bug Report

engon version:

1.8.0.

Current behavior:

If it try to install Engon from repository or from ZIP file, I get that error

Expected behavior:

Engon installs

Steps to reproduce:

Try to install Engon from repository or ZIP file

Other information:

I have tried to nuke out all Blender configuration (delete .config/blender/5.0). No luck.

[Griperis]

Hey @VaclavC, thanks for the report.

Could you please send us logs (see documentation) or the exact error output?

[VaclavC]

Here is that error in commandline:

P11421:16:58:08:polygoniq.bl_ext.extensions_polygoniq_com.engon:INFO: [__init__.py:64] polygoniq root logger initialized in module "bl_ext.extensions_polygoniq_com.engon", file "/home/disnel/.config/blender/5.0/extensions/extensions_polygoniq_com/engon/__init__.py" ----- Exception in module register(): /home/disnel/.config/blender/5.0/extensions/extensions_polygoniq_com/engon/__init__.py 00:20.392 operator | ERROR '__annotations__'

Also, it occurs only on my home machine with Arch linux. On office one with Ubuntu 24.04 it works. Both have Blender 5.0.1 installed.

[VaclavC]

The problem is with blender installed via pacman. If I remove it and use blender-bin installed by yay, Engon works. It probably uses incompatible Python version with system wide installation.

I'am not sure, if Engon can be compatible with both.

Perhaps it may be a good idea to mention this problem regarding Arch Linux in somewhere in installation guide?

[KubakCz]

I have some idea of what could be the problem if Blender really used some old incompatible Python version. Could you please check the Python version? (Open Blender's Scripting workspace, and you'll see the Python console with the version.)

[VaclavC]

Now I have Blender from AUR (blender-bin), it has Python 3.11.13 and Engon works.

Before I had Blender from Arch Linux repository and that used (AFAIK - I haven't reinstalled back to Arch version of Blender to check it) system Python which is version 3.14.3. So it seems, Engon does not work with newer Python, not old one.

[Griperis]

We patched this, and will be fixed in next engon release.