(Problem) PySide2.QtUiTools and PySide2.QtXml are dependencies of CfdOF but not of FreeCAD

[vocx]

I've been testing the CfdOF examples in openSim.

Everything seems to go well, however, when I try to input a CFD boundary condition an error occurs.

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Traceback (most recent call last):
  File "/home/vocx/.FreeCAD/Mod/CfdOF/_ViewProviderCfdFluidBoundary.py", line 94, in setEdit
    import _TaskPanelCfdFluidBoundary
  File "/home/vocx/.FreeCAD/Mod/CfdOF/_TaskPanelCfdFluidBoundary.py", line 37, in <module>
    import CfdFaceSelectWidget
  File "/home/vocx/.FreeCAD/Mod/CfdOF/CfdFaceSelectWidget.py", line 47, in <module>
    from PySide import QtUiTools
  File "/usr/share/freecad/Ext/PySide/QtUiTools.py", line 1, in <module>
    from PySide2.QtUiTools import *
<class 'ModuleNotFoundError'>: No module named 'PySide2.QtUiTools'

It complains about missing PySide2.QtUiTools, so I install this package.

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sudo apt install python3-pyside2.qtuitools

Then I try again to add the boundary conditions and it fails again.

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Traceback (most recent call last):
  File "/home/vocx/.FreeCAD/Mod/CfdOF/_ViewProviderCfdFluidBoundary.py", line 94, in setEdit
    import _TaskPanelCfdFluidBoundary
  File "/home/vocx/.FreeCAD/Mod/CfdOF/_TaskPanelCfdFluidBoundary.py", line 37, in <module>
    import CfdFaceSelectWidget
  File "/home/vocx/.FreeCAD/Mod/CfdOF/CfdFaceSelectWidget.py", line 47, in <module>
    from PySide import QtUiTools
  File "/usr/share/freecad/Ext/PySide/QtUiTools.py", line 1, in <module>
    from PySide2.QtUiTools import *
<class 'ImportError'>: could not import module 'PySide2.QtXml'

It complains about missing PySide2.QtXml, so I install this package as well.

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sudo apt install python3-pyside2.qtxml

With the two dependencies satisfied, CfdOF finally shows the task panel to set up the boundary conditions.

I have FreeCAD installed from the freecad-stable repository, but it seems the two packages mentioned aren't required dependencies, so they aren't automatically pulled by FreeCAD. Either the freecad package should be updated with this information, or CfdOF should check these two packages as dependencies together with PySide2.

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apt-cache depends freecad-python3

freecad-python3
  Depends: freecad-common
  Depends: freecad-runtime
  Depends: python3-matplotlib
  Depends: python3-pivy
  Depends: python3-pyside2.qtcore
  Depends: python3-pyside2.qtgui
  Depends: python3-pyside2.qtsvg
  Depends: python3-pyside2.qtwidgets
  Depends: python3-pyside2uic
  Depends: libfreecad-python3-0.18
  Depends: libfreecad-python3-0.18
  Depends: libc6
  Depends: libgcc1
  Depends: libpython3.6
  Depends: libqt5core5a
  Depends: libqt5widgets5
  Depends: libstdc++6
  Conflicts: <libfreecad-python2-0.17>
  Breaks: <libfreecad-python2-0.17>
  Replaces: <libfreecad-python2-0.17>

Another option is to avoid using PySide2.QtUiTools and PySide2.QtXml. How much are they used in CfdOF?

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OS: Ubuntu 18.04.2 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.1.
Build type: Release
Python version: 3.6.7
Qt version: 5.9.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

[kkremitzki]

This is a packaging bug that has been mentioned to me a few times before but fell through the cracks, gonna fix it at salsa.debian.org/science-team/freecad and then have updates flow from there.

[vocx]

This is a packaging bug that has been mentioned to me a few times before but fell through the cracks, gonna fix it at salsa.debian.org/science-team/freecad and then have updates flow from there.

Great.