cannot find svg resource

[ceoifung]

I install 2.17 version qt-material， report fellow error! Once I rollback to 2.14, this error gone and the svg image load successfully

WARNING:root:qt_material must be imported after PySide or PyQt!
WARNING:root:name 'QFontDatabase' is not defined
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/checklist.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/checklist.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/splitter-horizontal.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/splitter-horizontal.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/checkbox_checked.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/checkbox_checked.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/checkbox_unchecked.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/checkbox_unchecked.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/active/downarrow.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/active/downarrow.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/slider.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/slider.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/slider.svg', because: ??????????????????????????
qt.svg: Cannot open file 'D:/XiaoRPro/xr-servo-application/icon:/primary/slider.svg', because: ??????????????????????????

[robertpazdzior]

I'm running into a similar issue on my end while using PyQt5. Rolling back to 2.14 fixes this for me as well.

It can't find the svgs for up arrows and down arrows on QSpinBox and the check boxes on QCheckBox in my case. "No such file or directory".

[gustavo-iniguez-goya]

Same here. Since ... I've seen this issue since 4-5 months ago maybe. It doesn't seem related directly to qt-material, because I've been using v2.17 for months and it worked fine.

I'll try to provide more info.

[gustavo-iniguez-goya]

@robertpazdzior @ceoifung find your qt_material installation dir (on Linux could be /usr/lib/python3.xx/site-packages/qt_material/ or ~/.local/lib/python.../qt_material/, and add this line to the __init__.py file:

below this line:

qt-material/qt_material/__init__.py

Line 325 in 15cef2b

resources.generate()

QDir.addSearchPath('icon', resources.index)

and let us know if it solves the issue.

I reproduce this problem on Manjaro, but not on Fedora 42 or Debian 13. All with python3.13 and qt_material 2.17. There must be a difference somewhere that I haven't found yet.

[gustavo-iniguez-goya]

found the difference I think. In commit 999bce2, apparently PyQt5 support was removed:

999bce2#diff-9db3f8bed15a4c29ec7e56dd3f99ae5fb483b1d1ad85ecaf658b9ec6a551a8b6L37-L43

- elif 'PyQt5' in sys.modules:
-     from PyQt5.QtGui import QFontDatabase, QColor, QGuiApplication, QPalette
-     from PyQt5.QtWidgets import QAction, QColorDialog, QActionGroup
-     from PyQt5.QtCore import Qt, QDir
-     from PyQt5 import uic
- elif 'PyQt6' in sys.modules:

--

+ elif "PyQt6" in sys.modules:

This causes the var GUI to be false if the user is using PyQt5, so QDir.addSearchPath() is never called and the icons not loaded.:

qt-material/qt_material/__init__.py

Lines 327 to 328 in 15cef2b

	if GUI:
	QDir.addSearchPath("icon", resources.index)

@YeisonCardona so, the 2.17 is only compatible with PyQt6?

[ceoifung]

@robertpazdzior @ceoifung find your qt_material installation dir (on Linux could be /usr/lib/python3.xx/site-packages/qt_material/ or ~/.local/lib/python.../qt_material/, and add this line to the __init__.py file:

below this line:

qt-material/qt_material/init.py

Line 325 in 15cef2b

resources.generate()
QDir.addSearchPath('icon', resources.index)

and let us know if it solves the issue.

I reproduce this problem on Manjaro, but not on Fedora 42 or Debian 13. All with python3.13 and qt_material 2.17. There must be a difference somewhere that I haven't found yet.

same error. I use pyqt5, so the 2.17 is only compatible with PyQt6?

[ceoifung]

found the difference I think. In commit 999bce2, apparently PyQt5 support was removed:

999bce2#diff-9db3f8bed15a4c29ec7e56dd3f99ae5fb483b1d1ad85ecaf658b9ec6a551a8b6L37-L43

• elif 'PyQt5' in sys.modules:

• from PyQt5.QtGui import QFontDatabase, QColor, QGuiApplication, QPalette
  

• from PyQt5.QtWidgets import QAction, QColorDialog, QActionGroup
  

• from PyQt5.QtCore import Qt, QDir
  

• from PyQt5 import uic
  

• elif 'PyQt6' in sys.modules:

--

• elif "PyQt6" in sys.modules:
  This causes the var GUI to be false if the user is using PyQt5, so QDir.addSearchPath() is never called and the icons not loaded.:

qt-material/qt_material/init.py

Lines 327 to 328 in 15cef2b

if GUI:
QDir.addSearchPath("icon", resources.index)
@YeisonCardona so, the 2.17 is only compatible with PyQt6?

add fellow code in init.py may solve the problem. I test successully

elif "PyQt6" in sys.modules:
    from PyQt6.QtGui import (
        QFontDatabase,
        QBrush,
        QColor,
        QGuiApplication,
        QPalette,
        QAction,
        QActionGroup,
    )
    from PyQt6.QtWidgets import QColorDialog
    from PyQt6.QtCore import Qt, QDir
    from PyQt6 import uic
# add pyqt5 support
# add pyqt5 support
elif "PyQt5" in sys.modules:
    from PyQt5.QtGui import (
        QFontDatabase,
        QBrush,
        QColor,
        QGuiApplication,
        QPalette
    )
    from PyQt5.QtWidgets import QColorDialog, QAction, QActionGroup
    from PyQt5.QtCore import Qt, QDir
    from PyQt5 import uic

[YeisonCardona]

@ceoifung @robertpazdzior @gustavo-iniguez-goya
Thank you all for the investigation and the detailed reproduction steps — your analysis about the missing QFontDatabase import and the QDir.addSearchPath() not being called under PyQt5 is correct.

This behavior is expected from qt-material ≥ 2.17 because PyQt5 (and PySide2) are no longer officially supported:

• PyQt mailing list – Sept 19, 2022 – support for PyQt5 ended in 2023.
• PyQt5 on PyPI – last release on Jul 19, 2024 (likely a maintenance/security update).

In commit 999bce2#diff-9db3f8bed15a4c29ec7e56dd3f99ae5fb483b1d1ad85ecaf658b9ec6a551a8b6L37-L43, the PyQt5 import branch was removed, making PyQt6/PySide6 the only officially supported bindings.
If you need to keep using PyQt5 or PySide2, please pin to an older release:

pip install qt-material==2.14

Thanks again for helping clarify this for other users.

[gustavo-iniguez-goya]

Thanks @YeisonCardona ! I'm about to migrate opensnitch to PyQt6, so it's not an issue for us .