Oh yes it works.
I misread your first post reply in Align Text at the center impossible with label.set_width() defined - #2 by amirgon and I only changed the argument and not the name of the function 
Thank you for your help and your time !
Oh yes it works.
I misread your first post reply in Align Text at the center impossible with label.set_width() defined - #2 by amirgon and I only changed the argument and not the name of the function
Thank you for your help and your time !