Replace deprecated functions

members/views/members.py

@@ -10,7 +10,7 @@ from django.http import (
     HttpResponseForbidden,
 )
 from django.conf import settings
-from django.utils.translation import ugettext as _
+from django.utils.translation import gettext as _
 from django.forms.models import model_to_dict
 from dal import autocomplete
 from django.utils import timezone