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-rw-r--r--lib/sqlalchemy/orm/mapper.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/mapper.py b/lib/sqlalchemy/orm/mapper.py
index 64889b9a6..3ce7d9a80 100644
--- a/lib/sqlalchemy/orm/mapper.py
+++ b/lib/sqlalchemy/orm/mapper.py
@@ -417,6 +417,8 @@ class Mapper(object):
# override oldinit, insuring that its not already a Mapper-decorated init method
if oldinit is None or not hasattr(oldinit, '_sa_mapper_init'):
init._sa_mapper_init = True
+ init.__name__ = oldinit.__name__
+ init.__doc__ = oldinit.__doc__
self.class_.__init__ = init
mapper_registry[self.class_key] = self
if self.entity_name is None: