code: def show_layout(self, text, font_desc, alignment = pango.Alignment.LEFT,
                      width = -1, wrap = None, ellipsize = None,
                      single_paragraph_mode = False):
          
          layout = self._cache_layout = self._cache_layout or pangocairo.create_layout(cairo.Context(cairo.ImageSurface(cairo.FORMAT_A1, 0, 0)))
          self._add_instruction("show_layout", layout, text, font_desc,
                                alignment, width, wrap, ellipsize, single_paragraph_mode)
docs: display text. font_desc is string of pango font description
             often handier than calling this function directly, is to create
             a class:Label object