diff options
Diffstat (limited to 'lib/sqlalchemy/ext/declarative.py')
| -rw-r--r-- | lib/sqlalchemy/ext/declarative.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/ext/declarative.py b/lib/sqlalchemy/ext/declarative.py index d5bd2906b..cc972fc6f 100644 --- a/lib/sqlalchemy/ext/declarative.py +++ b/lib/sqlalchemy/ext/declarative.py @@ -500,7 +500,7 @@ def _as_declarative(cls, classname, dict_): raise exceptions.ArgumentError( "Can't add additional column %r when specifying __table__" % key) - mapper_args = getattr(cls, '__mapper_args__', {}) + mapper_args = dict(getattr(cls, '__mapper_args__', {})) if 'inherits' not in mapper_args: for c in cls.__bases__: if _is_mapped_class(c): |