Update Unicode database to Unicode 4.1.
diff --git a/Lib/encodings/idna.py b/Lib/encodings/idna.py
index f8a31d8..fde710b 100644
--- a/Lib/encodings/idna.py
+++ b/Lib/encodings/idna.py
@@ -1,6 +1,7 @@
 # This module implements the RFCs 3490 (IDNA) and 3491 (Nameprep)
 
-import stringprep, unicodedata, re, codecs
+import stringprep, re, codecs
+from unicodedata import db_3_2_0 as unicodedata
 
 # IDNA section 3.1
 dots = re.compile(u"[\u002E\u3002\uFF0E\uFF61]")