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Diffstat (limited to 'lib/sqlalchemy/ext/declarative/base.py')
-rw-r--r--lib/sqlalchemy/ext/declarative/base.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sqlalchemy/ext/declarative/base.py b/lib/sqlalchemy/ext/declarative/base.py
index e42ec2645..40c8c6ef6 100644
--- a/lib/sqlalchemy/ext/declarative/base.py
+++ b/lib/sqlalchemy/ext/declarative/base.py
@@ -136,7 +136,7 @@ def _as_declarative(cls, classname, dict_):
clsregistry.add_class(classname, cls)
our_stuff = util.OrderedDict()
- for k in dict_:
+ for k in list(dict_):
# TODO: improve this ? all dunders ?
if k in ('__table__', '__tablename__', '__mapper_args__'):
@@ -153,6 +153,9 @@ def _as_declarative(cls, classname, dict_):
"left at the end of the line?" % k)
continue
if not isinstance(value, (Column, MapperProperty)):
+ if not k.startswith('__'):
+ dict_.pop(k)
+ setattr(cls, k, value)
continue
if k == 'metadata':
raise exc.InvalidRequestError(