[Urwid] Problems with line characters and EUC-KR encoding

[Park Shinjo]

I used Unicode line characters(U+2500 and something) in Urwid's
SolidFill widget. Example(source file's encoding is UTF-8):

utf8decode = urwid.escape.utf8decode
dash = urwid.SolidFill(utf8decode('─'))

When I ran that program in UTF-8 terminal, SolidFill fills whole
screen width there. However, in EUC-KR terminal, it fills just half of
screen width. Can somebody help me?

Currently using Python 2.5 and Urwid 0.9.8.1.