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Diffstat (limited to 'lib/sqlalchemy/util.py')
| -rw-r--r-- | lib/sqlalchemy/util.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/util.py b/lib/sqlalchemy/util.py index 07b3ffdbb..43df0ec68 100644 --- a/lib/sqlalchemy/util.py +++ b/lib/sqlalchemy/util.py @@ -1128,6 +1128,8 @@ class WeakCompositeKey(object): """ keys = set() + __slots__ = 'args', '__weakref__' + def __init__(self, *args): self.args = [self.__ref(arg) for arg in args] WeakCompositeKey.keys.add(self) |