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Diffstat (limited to 'lib/sqlalchemy/sql/visitors.py')
| -rw-r--r-- | lib/sqlalchemy/sql/visitors.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/visitors.py b/lib/sqlalchemy/sql/visitors.py index 82cb7a253..deb92b081 100644 --- a/lib/sqlalchemy/sql/visitors.py +++ b/lib/sqlalchemy/sql/visitors.py @@ -120,6 +120,8 @@ class Traversible(util.with_metaclass(TraversibleType)): """ + __slots__ = () + def __class_getitem__(cls, key): # allow generic classes in py3.9+ return cls |