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pythonqtraspberry-pipyqt5raspbian

PyQt application rcc converted image not found in raspbian (Raspberry Pi OS)


I'm developing a cross-platform application that runs both on Windows and Linux(in my case is Raspbian). I have converted all images in single file using C:\Python37\Scripts\pyside2-rcc.exe tests.qrc -o tests_rc.py. my tests.qrc file structure is something like this:

<RCC>
  <qresource prefix="images">
    <file>images/Slider_1m.png</file>
    <file>images/Slider_2m.png</file>
    <file>images/Slider_3m.png</file>
  </qresource>
</RCC>

after converting to tests_rc.py coded like this in the main script:

self.SLIDER.setText(QCoreApplication.translate("SLIDER",u"<html><head/><body><p align=\"center\"><img src=':/images/images/Slider_1m.png'/></p></body></html>", None))

that perfectly loaded in windows app no need to original image files anymore. But in raspbian, this kind of image wont load and I have to define location like this:

self.SLIDER.setText(QCoreApplication.translate("SLIDER",u"<html><head/><body><p align=\"center\"><img src='/home/pi/Myproject/ui/images/Slider_1m.png'/></p></body></html>", None))

As you see I set the exact image location. This is the way I have found to view in raspbian app and my tests_rc.py file is totally useless. What should be do to use tests_rc.py file in raspbian as same as windows?


Solution

  • I have mainicons.qrc file contains:

    <RCC>
      <qresource prefix="images">
        <file>images/calibration_.png</file>
        <file>images/media_.png</file>
        <file>images/menu_.png</file>
        <file>images/upgrade_.png</file>
      </qresource>
    </RCC>
    

    converted to mainicons_rc.py file, then imported to this simple example:

    import sys
    from PyQt5.QtWidgets import QApplication, QWidget, QLabel
    from PyQt5.QtCore import QCoreApplication
    
    import mainicons_rc
    
    def window():
       app = QApplication(sys.argv)
       widget = QWidget()
       textLabel = QLabel(widget)
       textLabel.setText(QCoreApplication.translate("TestInitWindow", u"<html><head/><body><p><img src=\":/images/images/calibration_.png\"/></p></body></html>", None))
    
       widget.setGeometry(50,50,300,300)
       widget.setWindowTitle("PyQt5 Example")
       widget.show()
       sys.exit(app.exec_())
    
    if __name__ == '__main__':
       window()
    

    The problem was: used to be I convert it to rcc resource file using C:\Python37\Scripts\pyside2-rcc.exe mainicons.qrc -o mainicons_rc.py. changing pyside-rcc.exe to pyrcc5.exe solved the issue, now converting command should be like: C:\Python37\Scripts\pyrcc5.exe mainicons.qrc -o mainicons_rc.py. I have checked both generate files are completely different.