diff options
Diffstat (limited to 'lib/sqlalchemy/ext/declarative/api.py')
| -rw-r--r-- | lib/sqlalchemy/ext/declarative/api.py | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/sqlalchemy/ext/declarative/api.py b/lib/sqlalchemy/ext/declarative/api.py index 77a03bc4a..b08d3ce30 100644 --- a/lib/sqlalchemy/ext/declarative/api.py +++ b/lib/sqlalchemy/ext/declarative/api.py @@ -17,6 +17,7 @@ from ...util import OrderedDict, hybridmethod, hybridproperty from ... import util from ... import exc import weakref +import re from .base import _as_declarative, \ _declarative_constructor,\ @@ -189,8 +190,8 @@ class declared_attr(interfaces._MappedAttribute, property): def __get__(desc, self, cls): reg = cls.__dict__.get('_sa_declared_attr_reg', None) if reg is None: - manager = attributes.manager_of_class(cls) - if manager is None: + if not re.match(r'^__.+__$', desc.fget.__name__) and \ + attributes.manager_of_class(cls) is None: util.warn( "Unmanaged access of declarative attribute %s from " "non-mapped class %s" % |