travis: Also build on Python 3.6

Author: elprans

.travis.yml

@@ -84,6 +84,16 @@ matrix:
           addons:
               postgresql: '9.6'
 
+        - os: linux
+          dist: trusty
+          sudo: required
+          language: python
+          python: "3.6-dev"
+          env: BUILD=full PGVERSION=9.6
+          services: [postgresql, docker]
+          addons:
+              postgresql: '9.6'
+
 cache:
     directories:
         - $HOME/.cache/pip

tests/test_record.py

@@ -263,7 +263,8 @@ def test_record_cmp(self):
         self.assertGreater(r5, r7)
         self.assertGreater(r5, r4)
 
-        with self.assertRaisesRegex(TypeError, 'unorderable'):
+        with self.assertRaisesRegex(
+                TypeError, "unorderable|'<' not supported"):
             r1 < r8
 
         self.assertEqual(