import gi, os gi.require_version("Gtk", "3.0") gi.require_version("Handy", "1") from gi.repository import Gtk, Handy Handy.init() class MyWindow(Handy.Window): def __init__(self): super().__init__(title="Hello World") # WindowHandle self.handle = Handy.WindowHandle() self.add(self.handle) # Box self.box = Gtk.Box(spacing=6, orientation=Gtk.Orientation.VERTICAL) self.handle.add(self.box) # Headerbar self.hb = Handy.HeaderBar() self.hb.set_show_close_button(True) self.hb.props.title = "HeaderBar Example" self.box.pack_start(self.hb, False, True, 0) # Label self.lbl = Gtk.Label() self.lbl.set_text("Hebele hübele") self.lbl.set_justify(Gtk.Justification.CENTER) self.box.pack_start(self.lbl, True, True, 0) win = MyWindow() win.connect("destroy", Gtk.main_quit) win.show_all() Gtk.main()