From Fedora Project Wiki
The Reason
A large number of Fedora users don't read the Fedora wiki & websites, thus, they miss important tips & notifications.
The Concept
A simple application that reads a multilanguage web feed & post a new notification to the system D-Bus notifications system.
</prototypes>
Python D-Bus Notifications Example
This is a simple Python application to post a notification to the system D-Bus notifications system:
import dbus
bus = dbus.SessionBus()
notifications = bus.get_object('org.freedesktop.Notifications', '/org/freedesktop/Notifications')
interface = dbus.Interface(notifications, 'org.freedesktop.Notifications')
id = 4856
timeout = 2500
interface.Notify('name',id,'','summary','body','','',timeout)