[PyQt] QTreeView with blue line cursor at init

[emmanuel_mayssat at lynceantech.com]

Hello,

I have an application that run a sequence of tasks listed in a treeview.
There is a run button.
When the run button is pressed, it executes all the task in the subtree.

Now, when the application open, it is not really clear what the run button would execute, because the line cursor in the qtreeview is not
dispalyed.
Is there a way to show it by default?
(The only way I am found after startup of the application is to select a node in the tree.
but this is one click too many !)

Regards,

-- 
Emmanuel