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-rw-r--r--postgresqleu/util/diffablemodel.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/postgresqleu/util/diffablemodel.py b/postgresqleu/util/diffablemodel.py
index 8c4f68ab..94ad3e5f 100644
--- a/postgresqleu/util/diffablemodel.py
+++ b/postgresqleu/util/diffablemodel.py
@@ -26,7 +26,7 @@ class DiffableModel(object):
# Many to many lookups
if hasattr(self, 'map_manytomany_for_diff'):
for k, v in diffs.items():
- if k in manytomanyfieldnames and self.map_manytomany_for_diff.has_key(k):
+ if k in manytomanyfieldnames and k in self.map_manytomany_for_diff:
# Try to show the display name instead here
newvalue = getattr(self, self.map_manytomany_for_diff[k])
diffs[k] = (v[0], newvalue)