From dbe2294c04557bee9b734de99a16237c51634a82 Mon Sep 17 00:00:00 2001
From: Paul Romano <paul.k.romano@gmail.com>
Date: Wed, 17 Oct 2018 20:14:09 -0500
Subject: [PATCH] Support from_hdf5 for older format neutron files without
 redundant

---
 openmc/data/reaction.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/openmc/data/reaction.py b/openmc/data/reaction.py
index 547208dae..11807cadc 100644
--- a/openmc/data/reaction.py
+++ b/openmc/data/reaction.py
@@ -924,7 +924,7 @@ class Reaction(EqualityMixin):
         rx = cls(mt)
         rx.q_value = group.attrs['Q_value']
         rx.center_of_mass = bool(group.attrs['center_of_mass'])
-        rx.redundant = bool(group.attrs['redundant'])
+        rx.redundant = bool(group.attrs.get('redundant', False))
 
         # Read cross section at each temperature
         for T, Tgroup in group.items():