Various Python 3 compatibility fixes

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/accounts/tests/test_registration.py

@@ -334,8 +334,8 @@ class RegistrationTest(TestCase, RegistrationTestMixin):
             follow=True
         )
         user = User.objects.get(username='weblate')
-        self.assertEquals(user.first_name, 'Weblate')
-        self.assertEquals(user.email, 'noreply@weblate.org')
+        self.assertEqual(user.first_name, 'Weblate')
+        self.assertEqual(user.email, 'noreply@weblate.org')
 
 
 class NoCookieRegistrationTest(RegistrationTest):

weblate/trans/views/js.py

@@ -216,7 +216,7 @@ def mt_services(request):
     Generates list of installed machine translation services in JSON.
     '''
     # Machine translation
-    machine_services = MACHINE_TRANSLATION_SERVICES.keys()
+    machine_services = list(MACHINE_TRANSLATION_SERVICES.keys())
 
     return JsonResponse(
         data=machine_services,

weblate/trans/views/reports.py

@@ -146,7 +146,7 @@ def generate_counts(component, start_date, end_date):
                 result[email]['words'] += words
                 result[email]['count'] += 1
 
-    return result.values()
+    return list(result.values())
 
 
 @login_required