If you request a list of supported formats:

app = QApplication(sys.argv) image_formats = [str(_) for _ in QImageReader.supportedImageFormats()] print(image_formats)

then, not all will return (jpg / jpeg, for example, no):

 ['bmp', 'pbm', 'pgm', 'png', 'ppm', 'xbm', 'xpm']

    1 answer 1

    In the PySide folder there is a plugins folder with all the necessary plugins, but they need to be manually added to QCoreApplication (or its heirs) using the addLibraryPath method:

     def load_pyside_plugins(): """ Функция загружает Qt плагины. """ import PySide import os qApp = PySide.QtGui.QApplication.instance() for plugins_dir in [os.path.join(p, "plugins") for p in PySide.__path__]: qApp.addLibraryPath(plugins_dir)

    Checking:

     app = QApplication(sys.argv) load_pyside_plugins() image_formats = [str(_) for _ in QImageReader.supportedImageFormats()] print(image_formats)

    Console:

     ['bmp', 'gif', 'ico', 'jpeg', 'jpg', 'mng', 'pbm', 'pgm', 'png', 'ppm', 'tga', 'tif', 'tiff', 'xbm', 'xpm']