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Diffstat (limited to 'lib/sqlalchemy/attributes.py')
| -rw-r--r-- | lib/sqlalchemy/attributes.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sqlalchemy/attributes.py b/lib/sqlalchemy/attributes.py index bd730a109..bd5868baf 100644 --- a/lib/sqlalchemy/attributes.py +++ b/lib/sqlalchemy/attributes.py @@ -397,7 +397,10 @@ class AttributeManager(object): x.clear() del self.attribute_history(obj)[key] except KeyError: - pass + try: + del obj.__dict__[key] + except KeyError: + pass def class_managed(self, class_): """returns a dictionary of "history container definitions", which is attached to a |