from gi.repository import Gtk

import sys

class MyWindow(Gtk.ApplicationWindow):

    # a window

    def __init__(self, app):

        Gtk.Window.__init__(self, title="GNOME LinkButton", application=app)

        self.set_default_size(250, 50)

        # a linkbutton pointing to the given URI

        button = Gtk.LinkButton(uri="http://live.gnome.org")

        # with given text

        button.set_label("Link to GNOME live!")

        # add the button to the window

        self.add(button)

class MyApplication(Gtk.Application):

    def __init__(self):

        Gtk.Application.__init__(self)

    def do_activate(self):

        win = MyWindow(self)

        win.show_all()

    def do_startup(self):

        Gtk.Application.do_startup(self)

app = MyApplication()

exit_status = app.run(sys.argv)

sys.exit(exit_status)