When using gettext, and a token is not translated, for
example:
print _('Foo')
the output will be 'Foo', as expected. 
However, if that entry is:
print _(u'Foo')
we get:
Traceback (most recent call last):
  File "./translation.py", line 12, in ?
    print _(u'Foo')
  File "/usr/lib/python2.2/gettext.py", line 195, in
ugettext
    return unicode(tmsg, self._charset)
TypeError: decoding Unicode is not supported