Trying to let my python application inform the user by wiggling or shaking its icon in the launcher, I found:
Wiggling seems to be the "urgent animation": How can I change the wiggle time of 'urgent animation' in Unity Launcher?
https://wiki.ubuntu.com/Unity/LauncherAPI describes an API with a function to set an urgent flag on a LaucherEntry. But the vala example doesn't use it and the python example doesn't show any visual effect on my Ubuntu 11.10 for setting (or clearing) the "urgent" property (progress and count are working). The example python code does not use the API-C function unity_launcher_entry_set_urgent, but writes to the property directly, which maybe is the problem (and means not using the API in an API documentation example ...)
So, I am looking for a working python "wiggle" example. Or a working C example. Or some hints, why this is not working.