diff options
Diffstat (limited to 'lib/sqlalchemy/sql')
| -rw-r--r-- | lib/sqlalchemy/sql/visitors.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/visitors.py b/lib/sqlalchemy/sql/visitors.py index 1cd7b63cd..7111c5efd 100644 --- a/lib/sqlalchemy/sql/visitors.py +++ b/lib/sqlalchemy/sql/visitors.py @@ -120,6 +120,10 @@ class Traversible(util.with_metaclass(TraversibleType)): """ + def __class_getitem__(cls, key): + # allow generic classes in py3.9+ + return cls + @util.preload_module("sqlalchemy.sql.traversals") def get_children(self, omit_attrs=(), **kw): r"""Return immediate child :class:`.visitors.Traversible` |