CI: Enable CI for Python 3

.gitlab-ci.yml

@@ -28,6 +28,13 @@ py27_django111:
     - "source ./py27_django111/bin/activate"
     - "pip install -r ./tests/requirements-common.txt -U"
     - "pip install -U 'Django>=1.11,<1.12'"
+    - "python ./runtests.py"
+
+py34_django111:
+  script:
+    - "virtualenv-3.4 ./py34_django111"
+    - "source ./py34_django111/bin/activate"
+    - "pip install -r ./tests/requirements-common.txt -U"
+    - "pip install -U 'Django>=1.11,<1.12'"
     - "coverage run ./runtests.py"
     - "./coverage-report.py"
-

tests/tests.py

 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 import os
-import StringIO
+try:
+    from StringIO import StringIO
+except ImportError:
+    from io import StringIO
 from django.core import management
 from django.contrib.auth import get_user_model
 from django.test import Client, TestCase
@@ -115,7 +118,7 @@ class LdapTestCase(TestCase):
             # Clear user attributes for this test
             self.USER_MODEL.objects.all().update(first_name='', last_name='', email='')
         
-            stdout = StringIO.StringIO()
+            stdout = StringIO()
         
             management.call_command('ldap_sync', exclude=['alice'], verbosity=3, stdout=stdout)
             user = self.USER_MODEL.objects.get(username='test')