Check attribute isn't None before accessing sub-attributes.

- Legacy-Id: 14860
2018-03-18 15:14:58 +00:00 · 2018-03-18 15:14:58 +00:00 · 7f0de265e9
parent a7b9c4b733
commit 7f0de265e9
1 changed files with 1 additions and 1 deletions
--- a/ietf/meeting/views.py
+++ b/ietf/meeting/views.py
@ -1944,7 +1944,7 @@ def past(request):
              in meetings.filter(type='interim')]
    group_parents = []
    for g in groups:
-        if g.parent.acronym not in seen:
+        if g.parent and g.parent.acronym not in seen:
            group_parents.append(g.parent)
            seen.add(g.parent.acronym)