diff options
Diffstat (limited to 'lib/sqlalchemy/ext/mutable.py')
| -rw-r--r-- | lib/sqlalchemy/ext/mutable.py | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/sqlalchemy/ext/mutable.py b/lib/sqlalchemy/ext/mutable.py index 48c8d13cc..d3133b1f5 100644 --- a/lib/sqlalchemy/ext/mutable.py +++ b/lib/sqlalchemy/ext/mutable.py @@ -588,11 +588,11 @@ class MutableComposite(MutableBase): setattr(parent, attr_name, value) def _setup_composite_listener(): - import types def _listen_for_type(mapper, class_): for prop in mapper.iterate_properties: - if (hasattr(prop, 'composite_class') and (type(prop.composite_class) in (types.ClassType, types.TypeType)) and - issubclass(prop.composite_class, MutableComposite)): + if (hasattr(prop, 'composite_class') and + isinstance(prop.composite_class, type) and + issubclass(prop.composite_class, MutableComposite)): prop.composite_class._listen_on_attribute( getattr(class_, prop.key), False, class_) if not Mapper.dispatch.mapper_configured._contains(Mapper, _listen_for_type): |