diff -r 488255d1cf3b -r 3c85e734ce00 dbapi.py
--- a/dbapi.py	Mon Jun 24 12:41:27 2013 +0200
+++ b/dbapi.py	Fri Jun 21 16:28:16 2013 +0200
@@ -327,7 +327,7 @@
         else:
             # these args are initialized after a connection is
             # established
-            self.session = None
+            self.session = DBAPISession(None)
             self.cnx = self.user = _NeedAuthAccessMock()
         self.set_default_language(vreg)