qss url() not working on Python 3.9

nutrx

Hey,
just to make sure it's not me: the following code runs properly with both PySid2 and PySide6 on Python3.8 on my machine (Windows 10), i.e. when checking the checkbox I can see the indicator from the svg

from PySide6.QtCore import QDir
from PySide6.QtWidgets import QApplication, QMainWindow, QCheckBox
import sys
import os


class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setCentralWidget(QCheckBox('test'))


if __name__ == '__main__':
    app = QApplication(sys.argv)

    # the icon used below lies in the same dir as this file
    QDir.addSearchPath('icon', os.path.abspath(os.path.dirname(__file__)))

    app.setStyleSheet("""
QCheckBox::indicator:checked {
    image: url(icon:/checkbox_checked.svg);
}
    """)
    mw = MainWindow()
    mw.show()
    sys.exit(app.exec_())

When I run it on Python3.9, there's no indicator, the whole thing just disappears. This applies to all qss url()s and both PySide2 and PySide6. Is this a bug?
Thanks!

Versions for both Python 3.8 and 3.9:

PySide2 5.15.2
PySide6 6.0.1

edit also doesnt work with absolute paths, also not with strings in the url() which all seems to work on Python 3.8

SGaist

Hi,

Did you try the same path without the leading slash with Python 3.9 ?

nutrx

@SGaist Hi, yes same result

SGaist

Ok, can you also give the exact versions of Python ?
And how did you install PySide ? Pip or conda ?

nutrx

jep, Python 3.8.7 and 3.9.3 and installation via pip

Gilgamesh

Quizás ese widget no acepta ese estilo

eyllanesc

@nutrx It works for me, share the log when executing the script using the following command: QT_DEBUG_PLUGINS=1 python /path/of/your_script.py. If you use .png instead of .svg, do you still have that problem?

nutrx

@eyllanesc png works in both versions. with svg, using

set QT_DEBUG_PLUGINS=1
python3.9 my_file.py

when checking the box it fails with "Cannot load library [...]\\Roaming\\Python\\Python39\\site-packages\\PySide6\\plugins\\imageformats\\qsvg.dll: Das angegebene Modul wurde nicht gefunden. [cannot find the module]" besides other similar errors (even though it exists). When I run it with Python3.8 it works.

However, I noticed that PySide2/6 (and weirdly I think also the Python 3.9 installation) was located in Roaming for Python 3.9 and that it seems to look in various places for packages and the paths for site-packages in Roaming differ from the paths in AppData/Local/Programs. Therefore, although there was only one global (PATH) Python 3.9 installed, I tried by removing the Roaming stuff and reinstalled Python 3.9 and the packages, and now it seems to work...