[xubuntu-users] Problems with sending Notifications from Python

[Steve Litt]

On Thu, 02 Oct 2014 12:37:21 +0200
Christoph Robbert <chrobbert at gmail.com> wrote:

> Hey,
> I want to write a small python script which uses the xfce4-notifyd 
> service. It sends a notification at the beginning and after some time 
> (in my case 25 Minutes) a second one. Unfortunately I get the
> following error message when sending the second notification.
> 
> gi._glib.GError:
> GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The
> name :1.118 was not provided by any .service files

[snip Python specifics]

Make sure you've installed libnotify4 and libnotify-bin (the executable
command line utilities for libnotify).

Also, since you want to access libnotify from Python, install
python-notify.

[NOTE: These are the package names in Debian Wheezy. They might be
slightly different in Ubuntu]

Now perform the following command as a normal user:

notify-send "This is a test"

If the preceding fails to bring up a notification, you have more
fundamental problems than your Python bindings.

Also, 

ps ax | grep notify

See what is and is not used as a notification daemon.

Just for fun, you might want to switch xfce4-notifyd for dunst, or vice
versa, and view the results.

Once notification is working from notify-send, you're in a better
position to debug your Python program.

HTH,

SteveT

Steve Litt                *  http://www.troubleshooters.com/
Troubleshooting Training  *  Human Performance