diff options
Diffstat (limited to 'lib/sqlalchemy/orm')
| -rw-r--r-- | lib/sqlalchemy/orm/descriptor_props.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/descriptor_props.py b/lib/sqlalchemy/orm/descriptor_props.py index 9ecc9bb62..c4d6aac27 100644 --- a/lib/sqlalchemy/orm/descriptor_props.py +++ b/lib/sqlalchemy/orm/descriptor_props.py @@ -18,6 +18,9 @@ from ..sql import expression from . import properties from . import query +class ProxyImpl(object): + """A helper class for detecting whether an attribute is a proxy""" + pass class DescriptorProperty(MapperProperty): """:class:`.MapperProperty` which proxies access to a @@ -28,7 +31,7 @@ class DescriptorProperty(MapperProperty): def instrument_class(self, mapper): prop = self - class _ProxyImpl(object): + class _ProxyImpl(ProxyImpl): accepts_scalar_loader = False expire_missing = True collection = False |