pytest (#209)

passbook/admin/views/groups.py

@@ -5,7 +5,7 @@ from django.contrib.auth.mixins import (
 )
 from django.contrib.messages.views import SuccessMessageMixin
 from django.urls import reverse_lazy
-from django.utils.translation import ugettext as _
+from django.utils.translation import gettext as _
 from django.views.generic import ListView, UpdateView
 from guardian.mixins import PermissionListMixin, PermissionRequiredMixin