Attempt to fix flake8 error

datacenterlight/cms_models.py

@@ -3,6 +3,7 @@ from cms.extensions.extension_pool import extension_pool
 from cms.models.fields import PlaceholderField
 from cms.models.pluginmodel import CMSPlugin
 from django import forms
+from django.conf import settings
 from django.contrib.postgres.fields import ArrayField
 from django.contrib.sites.models import Site
 from django.db import models
@@ -300,6 +301,8 @@ class MultipleChoiceArrayField(ArrayField):
     Uses Django's Postgres ArrayField
     and a MultipleChoiceField for its formfield.
     """
+    VMTemplateChoices = []
+    if settings.OPENNEBULA_DOMAIN != 'test_domain':
         VMTemplateChoices = list(
             (
                 str(obj.opennebula_vm_template_id),