diff options
Diffstat (limited to 'lib/sqlalchemy/sql')
| -rw-r--r-- | lib/sqlalchemy/sql/base.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/sqlalchemy/sql/base.py b/lib/sqlalchemy/sql/base.py index 5f2ce8f14..4c603b6dd 100644 --- a/lib/sqlalchemy/sql/base.py +++ b/lib/sqlalchemy/sql/base.py @@ -495,8 +495,14 @@ class Generative(HasMemoized): def _generate(self): skip = self._memoized_keys - s = self.__class__.__new__(self.__class__) - s.__dict__ = {k: v for k, v in self.__dict__.items() if k not in skip} + cls = self.__class__ + s = cls.__new__(cls) + if skip: + s.__dict__ = { + k: v for k, v in self.__dict__.items() if k not in skip + } + else: + s.__dict__ = self.__dict__.copy() return s |