On Wed, 3 Jan 2018 22:51:55 +0100, Mike Wey wrote:

On 03-01-18 19:33, Luís Marques wrote:
The rowInserted signal is to let the widgets that show your model know
about changes to the underling model. If you fill the model before
adding it to a treeview, or if the model already holds the data
internally you don't need to emit the signal.

OK, thanks! That wasn't obvious to me because the example fills the model before adding it to the TreeView, but the filling function is generic and still emits the signal.