--- a/lib/my_db.py	Wed Dec 31 15:41:32 2008 -0500
+++ b/lib/my_db.py	Wed Dec 31 16:26:22 2008 -0500
@@ -277,6 +277,8 @@
 		return res
 	def map_keywords(self, kws):
 		"""Return a dictionnary of keywords and their ids."""
+		if len(kws) == 0:
+			return {}
 		qry = """SELECT k.id, k.name
 			FROM keywords k
 			WHERE k.userid = %d """ % self.userid