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-rw-r--r--lib/sqlalchemy/orm/base.py1
1 files changed, 0 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/base.py b/lib/sqlalchemy/orm/base.py
index 896041980..30603cba1 100644
--- a/lib/sqlalchemy/orm/base.py
+++ b/lib/sqlalchemy/orm/base.py
@@ -152,7 +152,6 @@ NOT_EXTENSION = util.symbol('NOT_EXTENSION',
""")
_none_set = frozenset([None, NEVER_SET, PASSIVE_NO_RESULT])
-_none_tuple = tuple(_none_set) # for "in" checks that won't trip __hash__
def _generative(*assertions):