monet now seems to return plain hex strings for blobs
so there is no need for conversions

apply by doing:
cd /usr/*/lib/python*/site-packages/MonetSQLdb
patch < monetsql_python_blob.patch

--- converters.py.orig	2009-12-09 12:17:29.000000000 +0200
+++ converters.py	2009-12-09 12:39:46.000000000 +0200
@@ -150,7 +150,7 @@
     "float": float,
     "double": float,
     "real": float,
-    "blob": str2blob,
+    "blob": str,
     # timestamp types
     "date": times.fromDate,
     "time": times.fromTime,