UnicodeDecodeError: 'ascii' codec can't decode byte 0xa0 in position 10: ordinal not in range(128)

[Robin Siebler]

It's just a file path.  It doesn't *have* any non-ASCII chars in it to
begin with!  That's why I don't understand why I'm getting the error. 
I didn't get it with Python 2.2, but we just upgraded to
(Active)Python 2.3.