[PyQt] QIcon not displaying

[metulburr]

Im running through PyQt5 tuts and came across a couple of tutorials that use QIcon. I cant get anything given to QIcon to work at all whether its through QAction or setting the window icon via...

self.setWindowIcon(QtGui.QIcon('py.png'))   

I tried the following based on google search results:

• full path
  
• changing image formats
  
• changing image sizes
  
• image in same directory as script
  

full code:

import sys
from PyQt5.QtWidgets import QMainWindow, QAction, qApp, QApplication
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import QFile


class Example(QMainWindow):
    
    def __init__(self):
        super().__init__()
        
        self.initUI()
        
        
    def initUI(self):               
        print(QFile.exists('py.png'))
        exitAction = QAction(QIcon('/home/metulburr/py.png'), '&Exit', self)        
        exitAction.setShortcut('Ctrl+Q')
        exitAction.setStatusTip('Exit application')
        exitAction.triggered.connect(qApp.quit)

        self.statusBar()

        menubar = self.menuBar()
        fileMenu = menubar.addMenu('&File')
        fileMenu.addAction(exitAction)
        
        self.setGeometry(300, 300, 300, 200)
        self.setWindowTitle('Menubar')    
        self.show()
        
        
if __name__ == '__main__':
    
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())  

Anything given to QIcon is as if the line didnt exist at all. 

Ubuntu 16.04 
My system was acting wacky so i did a complete fresh install again. Maybe i am missing a dependency or something?

[Fred Barclay]

Not to rub salt in the wound, but your code works perfectly on my system (Debian Sid). I'm running the script from my Documents folder and the image in in ~/Pictures.

The only change I made was providing a full path to

print(QFile.exists('py.png'))

:

print(QFile.exists('/home/fred/Pictures/Adam.png'))

I wonder what would happen if you used os.path.asbpath? Something like

from os.path import abspath
img_path = abspath('/home/metulburr/py.png')
exitAction = QAction(QIcon(img_path), '&Exit', self)

It ought not change anything but you never know.

[metulburr]

I wonder what would happen if you used os.path.asbpath?

Notta. But now i am wondering if it is a desktop issue. What desktop are you using?

[snippsat]

Works fine for my with .png in same folder as scripts in both Win-10 and Mint 18.1.

My system was acting wacky so i did a complete fresh install again. Maybe i am missing a dependency or something?

Virtual environment  
I run PyQt5 in virtual environment in both Win-10 and Mint,not gone install it in OS python.

[metulburr]

Its got to be an issue with Ubuntu's Unity then because as soon as i installed another desktop it started working now problem. Another tally for it heading out.

[Fred Barclay]

Notta. But now i am wondering if it is a desktop issue. What desktop are you using?

MATE 1.16.1

[metulburr]

im prolly going to move to a tile window manager soon.

[snippsat]

Its got to be an issue with Ubuntu's Unity

Unity is dead,so best to switch.