diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sqlalchemy/orm/collections.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/collections.py b/lib/sqlalchemy/orm/collections.py index 4b096c152..5008f5727 100644 --- a/lib/sqlalchemy/orm/collections.py +++ b/lib/sqlalchemy/orm/collections.py @@ -1201,6 +1201,8 @@ def _list_decorators(): stop += len(self) if step == 1: + if value is self: + return for i in range(start, stop, step): if len(self) > start: del self[start] |