python - Window icon does not show

Question

I study this tutorial http://zetcode.com/gui/pyqt5/firstprograms/ and code here.

import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QIcon


class Example(QWidget):

    def __init__(self):
        super().__init__()

        self.initUI()


    def initUI(self):

        self.setGeometry(300, 300, 300, 220)
        self.setWindowTitle('Icon')
        self.setWindowIcon(QIcon('web.png'))        

        self.show()


if __name__ == '__main__':

    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())  

Can I show Window icon? I use PyQt5, Python3.4 and Linuxmint 17.2 cinnamon.

Answer 1

i am not sure, what you expected: the windowicon is shown as applicationIcon (e.g. here on ubuntu gnome, see my code in the background)

If no icon has been set, windowIcon() returns the application icon

(QApplication::windowIcon()).

http://doc.qt.io/qt-5/qwidget.html#windowIcon-prop

looks on ubuntu like this:

so i think, the code is working correctly