cmd.exe on WIndows - problem with displaying some Unicode characters

[Wiktor]

Hi,

as OO programming exercise, I'm trying to port to Python one of my favorite
game from early'90 (Atari 65XL/XE) - Kolony (here's video from original
version on C64 https://www.youtube.com/watch?v=UFycYOp2cbE, and here's
video from modern rewritten (for Atari emulators) version: Kolony 2106
https://www.youtube.com/watch?v=eX20Qqqm5eg - you get the idea? ;-)).

OO Design is one thing, but I want to make it look as near as possible to
the original (those windows-like menus in console window). I tried to use
'standard' Unicode characters (I can see that most of my Windows monospaced
fonts have them) to draw frame around menu. Something like this:

 ┌──────────────╖
 │ Construction ║
 │ Production   ║
 │ Research     ║
 │ Exploration  ║
 ├··············╢
 │ Next turn    ║
 ╘══════════════╝

(I like the look of double lines on right and at the bottom)
But when I try to print those characters, I get an error:

| Traceback (most recent call last):
|   File "E:\Moje dokumenty\python\kolony\menu.py", line 14, in <module>
|     """
|   File "C:\Python34\lib\encodings\cp852.py", line 19, in encode
|     return codecs.charmap_encode(input,self.errors,encoding_map)[0]
| UnicodeEncodeError: 'charmap' codec can't encode character '\u2556' in position 1
| 6: character maps to <undefined>

Now I know what that means. Code page that my cmd.exe is using (852)
doesn't have "╖", "╘", "╢" and "·" symbols. Changing code page to Unicode
(65001) doesn't really help, because all is messed up:
 ┌──────────────╖
 │ Construction ║
 │ Production   ║
 │ Research     ║
 │ Exploration  ║
 ├··············╢
 │ Next turn    ║
 ╘══════════════╝
    �·········╢
 │ Next turn    ║
 ╘══════════════╝
    ��════════════╝
    ��═════╝
    ═╝
(I believe that's cmd.exe bug with Unicode support, not Python fault)


Before I drop entirely this idea of using double lines on right and bottom
edges, and make it look like this 
    ┌──────────────┐
    │ Construction │
    ├--------------┤
    │ Next turn    │
    └──────────────┘
I have to ask - is there a way to make that original concept work? I know,
that CP437 has symbols "╖", "╢" and "╘", but does not have polish letters -
and I need to display them too. 
I also know, that cmd.exe can display those Unicode characters (by
copy/paste them in command line or by listing filenames containing that
characters), no matter what CP is set. How does it manage to do it? Can I
exploit that writing my Python program?
Wiktor

-- 
Best regards,     Wiktor Matuszewski
'py{}@wu{}em.pl'.format('wkm', 'ka')