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| author | mike bayer <mike_mp@zzzcomputing.com> | 2020-06-19 15:21:39 +0000 |
|---|---|---|
| committer | Gerrit Code Review <gerrit@bbpush.zzzcomputing.com> | 2020-06-19 15:21:39 +0000 |
| commit | 15dd104d5bd1c0819628dec6d9466be38dc5130f (patch) | |
| tree | c27cc01c959170895d8389408b12de8921e4b532 /lib/sqlalchemy/sql/base.py | |
| parent | 332b8b78f6ba728b0994457420cb66e1c9bd5846 (diff) | |
| parent | 699da7ecb96e9e1af8df8072d53199a560311260 (diff) | |
| download | sqlalchemy-15dd104d5bd1c0819628dec6d9466be38dc5130f.tar.gz | |
Merge "perf tweaks"
Diffstat (limited to 'lib/sqlalchemy/sql/base.py')
| -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 |