QuotedString must be str? (psycopg)

[Alban Hertroys]

I noticed this:

from psycopg import *
print QuotedString(u"Unicode string")

Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: argument 1 must be str, not unicode
Is it possible somehow to use a unicode string, or would I have to
escape the strings with my own function (not really a problem, I did
that before I found out QuotedString exists, but it seems a tad ugly...).

Alban.