diff -ur Python-2.7.3-original/Modules/_sqlite/connection.c Python-2.7.3/Modules/_sqlite/connection.c
--- Python-2.7.3-original/Modules/_sqlite/connection.c  2012-04-10 01:07:33.000000000 +0200
+++ Python-2.7.3/Modules/_sqlite/connection.c   2013-03-03 01:29:18.762098628 +0100
@@ -457,7 +457,8 @@
     }

     if (self->inTransaction) {
-        pysqlite_do_all_statements(self, ACTION_RESET, 0);
+        // See http://bugs.python.org/issue10513
+        //pysqlite_do_all_statements(self, ACTION_RESET, 0);

         Py_BEGIN_ALLOW_THREADS
         rc = sqlite3_prepare(self->db, "COMMIT", -1, &statement, &tail);

diff -ur Python-2.7.3-original/Modules/_sqlite/statement.c Python-2.7.3/Modules/_sqlite/statement.c
--- Python-2.7.3-original/Modules/_sqlite/statement.c   2012-04-10 01:07:33.000000000 +0200
+++ Python-2.7.3/Modules/_sqlite/statement.c    2013-03-03 01:29:51.402153405 +0100
@@ -266,7 +267,7 @@

             if (rc != SQLITE_OK) {
                 if (!PyErr_Occurred()) {
-                    PyErr_Format(pysqlite_InterfaceError, "Error binding parameter %d - probably unsupported type.", i);
+                    PyErr_Format(pysqlite_InterfaceError, "Error binding parameter %d - probably unsupported type. (sqlite error %d)", i, rc);
                 }
                 return;
             }