Comment 1 for bug 715820

I'm interested in trying to implement a suitable tooltip for this, and probably for the 'Account', ' Cloud Folders' and 'Devices' buttons too.
I have been looking in data/dashboard.ui which implements tooltips for 'Edit' and 'Buy more storage...', also been looking in ubuntuone/controlpanel/gtk/widgets.py.

There is no existing mechanism in widgets.py to implement tooltip, at least not one that I was able to notice. What would be the preferred mechanism to implement this, consistent with other Python applications?

I have the latest source code branched from bazaar and can successfully build/test with pbuilder.