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-rw-r--r--lib/sqlalchemy/orm/interfaces.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/interfaces.py b/lib/sqlalchemy/orm/interfaces.py
index 96a6e340c..7d0bae1da 100644
--- a/lib/sqlalchemy/orm/interfaces.py
+++ b/lib/sqlalchemy/orm/interfaces.py
@@ -368,7 +368,7 @@ class MapperProperty(object):
See PropertyLoader for the related instance implementation.
"""
- return iter([])
+ return iter(())
def set_parent(self, parent):
self.parent = parent