[Urwid] Problems with last version

[Pedro Jorge Caridade]

Hello again
I'm having some problems running some examples with version 0.9.8.1. For 
example, rbreu_fc.py and rbreu_scrollbar.py.
In rbreu_fc.py when we press enter it gives an error on 
_focused_widgets  File "rbreu_fc.py", line 179, in _focused_widgets:

    focused.append(widget[0])
TypeError: unindexable object

In rbreu_scrollbar.py:
urwid.canvas.CanvasError: The internal representation of canvases is no 
longer stored as .text, .attr, and .cs lists, please see the TextCanvas 
class for the new representation of canvas content.

With version 0.9.7.2 it was ok!
Pedro