missing "import gobject" in gtkgui_helpers.py
In gtkgui_helpers.py, escape_for_pango_markup(): "escaped_str = gobject.markup_escape_text(string)". But gtkgui_helpers.py does not import gobject.
In gtkgui_helpers.py, escape_for_pango_markup(): "escaped_str = gobject.markup_escape_text(string)". But gtkgui_helpers.py does not import gobject.