Python 3.8 compatibility

[Schnilz]

Hey

i run freecad on archlinux with the AUR package "freecad-git (https://aur.archlinux.org/cgit/aur.git/ ... reecad-git)". In the last days the python update to python 3.8 was pushed to the archlinux repos. I recompiled freecad with the new python, but that didnt work straight away as Pyside2 wasnt found (-DPYSIDE_LIBRARY="/usr/lib/libpyside2.cpython-${PYVER//.}m-${CARCH}-linux-gnu.so" ), as that file doesnt exist anymore. /usr/lib/libpyside2.cpython-${PYVER//.}-${CARCH}-linux-gnu.so without the m does exist. After removing the m freecad compiles fine and also opens up the gui on startup but when i switch to the partbuilder workbench i get an error : TypeError: 'Shiboken.ObjectType' object is not iterable.

Im not realy sure if thats caused by removing the m (cause thats not actualy the needed library or something) or something else...
Any help is appreciated

Full log is in the Attatchment

[looo]

Pyside2 + python3.8 is not yet working. pyside2 version 5.14 will adress these issue. You can follow these links to get more information:
https://github.com/conda-forge/freecad- ... -551993747
https://bugreports.qt.io/browse/PYSIDE-939

[vocx]

...when i switch to the partbuilder workbench i get an error : TypeError: 'Shiboken.ObjectType' object is not iterable.
...

Please clarify which workbench you are talking about. There is a Part Workbench, and also a PartDesign Workbench.

Also, there is no log attached.

[looo]

Please clarify which workbench you are talking about. There is a Part Workbench, and also a PartDesign Workbench.

Also, there is no log attached.

This is a general problem of current pyside2 versions because of wrong refcounting. I guess there is not much we can do.

[Schnilz]

thanks for the help!
i guess im using the appimage for now until pyside is working correctly with 3.8
(its the partdesign workbench for reference, log added here, not sure what happend in the first post, sry)

[reox]

I also have issues on debian, but it looks like the transition phase between 3.7 and 3.8 in sid is not completely over yet.
Interestingly, I first got an error that /usr/bin/shiboken2 was missing. Hence, I installed the binaries as well. But then I got an error that pyside was build with python 3.7 and the minor version (3.8) is not supported.

[Kunda1]

Dupe issue reported in https://forum.freecadweb.org/viewtopic.php?f=3&t=41119
The OP of that thread opened issue #4195
should we just go ahead a rename the bug to reflect the real issue (AKA py3.8/pyside2/shiboken2 compatibility issues) ?

[Kunda1]

Dupe issue reported in https://forum.freecadweb.org/viewtopic.php?f=3&t=41119
The OP of that thread opened issue #4195
should we just go ahead a rename the bug to reflect the real issue (AKA py3.8/pyside2/shiboken2 compatibility issues) ?

When this issue is solved please notate issue #4195 or close it.

[Cyril]

Issue solved with Shiboken / PySide 5.14. Needed also to recompile pivy for python 3.8.

OS: Manjaro Linux (GNOME/gnome)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19 (Git)
Build type: Release
Branch: master
Hash: 6a4dd82415708c9b34ebb5883364e4060abc29dd
Python version: 3.8.0
Qt version: 5.14.0
Coin version: 4.0.0a
OCC version: 7.4.0
Locale: French/Switzerland (fr_CH)