There is a problem with documentation. https://gitlab.gnome.org/GNOME/pygobject/issues/251
The answer can be found here. https://stackoverflow.com/a/52248549/4865723 _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
