diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sqlalchemy/orm/decl_api.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/sqlalchemy/orm/decl_api.py b/lib/sqlalchemy/orm/decl_api.py index 54e927ee4..23b89a543 100644 --- a/lib/sqlalchemy/orm/decl_api.py +++ b/lib/sqlalchemy/orm/decl_api.py @@ -624,14 +624,14 @@ class registry(object): return itertools.chain( ( manager.mapper - for manager in self._managers + for manager in list(self._managers) if manager.is_mapped and not manager.mapper.configured and manager.mapper._ready_for_configure ), ( npm - for npm in self._non_primary_mappers + for npm in list(self._non_primary_mappers) if not npm.configured and npm._ready_for_configure ), ) |