[Tkinter] LONG POST ALERT: Setting application icon on Linux
tmj at SPAMLESSjarmania.com
Sun Mar 27 14:27:25 CEST 2005
Apologies in advance for the long post - I wanted to be sure I included all
the relevant details. The answer is probably very, very simple.
I am doing something stupid here, but I don't know what it is. I'm writing
an application with a Tkinter GUI (Python 2.4, Tcl/Tk 8.4.) and I want to
put a custom icon on the main window.
I've followed (so far as I understand it) the recipe in the eff-bot's
splendid Introduction to Tkinter - see:
- but it isn't working for me. Clearly there#s something I didn't get.
I need a solution for Linux initially (Mandrake 10.1/KDE 3.2 if it makes a
difference) and maybe OS/X in the future. The only solutions I've founds on
Google are Windows-specific.
Here's what I have at the moment, reduced to its essentials:
# Display an application icon.
import Tkinter as tk
APP_NAME = "Icon Test"
HOME = "/home/tim/Projects/tkDev/playwright"
"Main entry point for the application."
# Create the root window.
root = tk.Tk()
# Set the icon.
print "current icon name = ", root.iconname()
icon_path = os.path.join(HOME, "icon.gif")
print "icon_path =", icon_path
icon_image = tk.PhotoImage(file=icon_path)
print "icon_image =", icon_image
icon_label = tk.Label(image=icon_image)
print "icon_label =", icon_label
assert icon_label.master is root
print "about to fail.."
# Create and show the main window.
# Bootstrap code.
if __name__ == "__main__":
And here's the output I get when I run it:
current icon name =
icon_path = /home/tim/Projects/tkDev/playwright/icon.gif
icon_image = pyimage1
icon_label = .1076669484
about to fail..
Traceback (most recent call last):
File "test_icon.py", line 38, in ?
File "test_icon.py", line 27, in main
File "/usr/local/lib/python2.4/lib-tk/Tkinter.py", line 1473, in
return self.tk.call('wm', 'iconwindow', self._w, pathName)
_tkinter.TclError: can't use .1076669484 as icon window: not at top level
Obviously the root window doesn't even get displayed.
I don't understand the error message. How can I make the Label "top level"
enough to do the job? It's a child of root. Calling .pack() doesn't seem to
help (although if I comment out the iconwindow() call so that the window
actually appears, I can see that the GIF file has loaded correctly).
Do I need to hide the root window and create a new Toplevel for my app's
main window? I thought root would be an instance of Toplevel. As you can
tell, I'm a bit confused here!
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