Shiboken dependency is picked up from local instead of packaged causing issues (was: Cannot start FreeCAD 1.0.0 AppImage (x86_64))

[nvdl]

Is there an existing issue for this?

• I have searched the existing issues

Problem description

Downloaded the latest version from https://www.freecad.org/downloads.php
URL: https://github.com/FreeCAD/FreeCAD/releases/download/1.0.0/FreeCAD_1.0.0-conda-Linux-x86_64-py311.AppImage

But it aborts when trying to run it from the command line.

chmod +x FreeCAD_1.0.0-conda-Linux-x86_64-py311.AppImage
./FreeCAD_1.0.0-conda-Linux-x86_64-py311.AppImage

FreeCAD 1.0.0, Libs: 1.0.0R39109 (Git)
(C) 2001-2024 FreeCAD contributors
FreeCAD is free and open-source software licensed under the terms of LGPL2+ license.

AttributeError: module 'shibokensupport.signature.loader' has no attribute 'finish_import'
Fatal Python error: init_phase_2: could not initialize part 2
Python runtime state: initialized

Current thread 0x00007fa821d44840 (most recent call first):
  File "/home/nvd/.local/lib/python3.11/site-packages/shiboken2/__init__.py", line 30 in <module>
  File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 940 in exec_module
  File "<frozen importlib._bootstrap>", line 690 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 1147 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1176 in _find_and_load
  File "/tmp/.mount_FreeCAmiDdMj/usr/lib/python3.11/site-packages/PySide2/__init__.py", line 31 in _setupQtDirectories
  File "/tmp/.mount_FreeCAmiDdMj/usr/lib/python3.11/site-packages/PySide2/__init__.py", line 80 in <module>
  File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 940 in exec_module
  File "<frozen importlib._bootstrap>", line 690 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 1147 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1176 in _find_and_load
  File "/tmp/.mount_FreeCAmiDdMj/usr/Ext/PySide/__init__.py", line 2 in <module>
  File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 940 in exec_module
  File "<frozen importlib._bootstrap>", line 690 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 1147 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1176 in _find_and_load
  File "/tmp/.mount_FreeCAmiDdMj/usr/Mod/AddonManager/AddonManager.py", line 35 in <module>
  File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 940 in exec_module
  File "<frozen importlib._bootstrap>", line 690 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 1147 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1176 in _find_and_load
  File "/tmp/.mount_FreeCAmiDdMj/usr/Mod/AddonManager/InitGui.py", line 6 in <module>
  File "<string>", line 142 in RunInitGuiPy
  File "<string>", line 205 in InitApplications
  File "<string>", line 283 in <module>

Extension modules: FreeCAD, FreeCADGui, shiboken2.shiboken2, PySide2.QtCore (total: 4)
/tmp/.mount_FreeCAmiDdMj/AppRun: line 31: 113684 Aborted                 "${MAIN}" "$@"

OS: Debian GNU/Linux 12
Kernel: Linux 6.1.0-28-amd64

Full version info

Cannot as it does not reach that point.

Subproject(s) affected?

None

Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[tarman3]

You wrote url for aarch64, but command for x86_64

Please, check what you are really doing?
Show output for command uname -a or inxi

[nvdl]

Updated. The kernel version is at the end of the text coming from "uname -a". Or, do you need the whole output of that command?

[tarman3]

Please try last dev build
https://github.com/FreeCAD/FreeCAD-Bundle/releases/tag/weekly-builds

[nvdl]

The last dev build has the same issue. It looks like it picks up my local installation of "shiboken2" instead of the packaged one.

Running:

pip3 uninstall --break-system-packages shiboken2

has fixed the issue.

Found existing installation: shiboken2 5.13.2
Uninstalling shiboken2-5.13.2:
  Would remove:
    /home/<user>/.local/lib/python3.11/site-packages/shiboken2-5.13.2.dist-info/*
    /home/<user>/.local/lib/python3.11/site-packages/shiboken2/*
Proceed (Y/n)? 
  Successfully uninstalled shiboken2-5.13.2

[oursland]

This appears to be a packaging issue.

@luzpaz could you move this issue to the FreeCAD-Bundle repo?

[oursland]

AppImage files contain all of the build artifacts along with the environment to run them. FreeCAD is linked against the libpython within the environment. The launch script sets up necessary environment variables to direct $PREFIX and $PYTHONHOME and other variables to this environment. In principle, FreeCAD should only use Python modules installed within this environment.

It is possible that other environment variables may somehow cause an incorrect discovery of Python modules. Do you have any of these environment variables set in your host environment?

[nvdl]

I have some environment variables set so that local Python scripts can be found.

But, the problem persists even after setting the "PATH" to a minimal value and clearing the other environment variables.

export PATH=/usr/local/bin:/usr/bin:/bin
export PYTHONPATH=""
export PYTHONPYCACHEPREFIX=""

Checking:

export | grep PYTHON
PYTHONPATH=''
PYTHONPYCACHEPREFIX=''

This only happens when there is "shiboken2" at:
~/.local/lib/python3.11/site-packages/shiboken2

I have moved away from packages in the "~/.local/lib" directory and have switched to a Python virtual environment.

But, it may affect someone who has stuff installed at "~/.local/lib".

The issue exists even if launching the "AppImage" from a Python virtual environment with "PATH" set to a minimal value (as above) and "PYTHONPATH" and "PYTHONPYCACHEPREFIX" set to nothing.

Removing the package from "~/.local/lib/python3.11/site-packages" fixes the issue.
pip3 uninstall --break-system-packages shiboken2

Interestingly, this issue does not exist if I switch to a Python virtual environment, install "shiboken2" and run the "AppImage".

# Switch to the virtual environment.
pip3 install shiboken2
./FreeCAD_1.0.0-conda-Linux-x86_64-py311.AppImage