Error in regexp

[pepsik-kiev]

in url.py
# resource path u"(?:/[-a-z\u00a1-\uffff\U00010000-\U0010ffff0-9._~%!$&'()*+,;=:@/]*)?"
must be
# resource path r"(?:/[-a-z\u00a1-\uffff\U00010000-\U0010ffff0-9._~%!$&'()*+,;=:@/]*)?"