diff options
Diffstat (limited to 'lib/sqlalchemy/event/attr.py')
| -rw-r--r-- | lib/sqlalchemy/event/attr.py | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/lib/sqlalchemy/event/attr.py b/lib/sqlalchemy/event/attr.py index a64c7d08d..8a88e40ef 100644 --- a/lib/sqlalchemy/event/attr.py +++ b/lib/sqlalchemy/event/attr.py @@ -51,7 +51,7 @@ class _ClsLevelDispatch(RefCollection): """Class-level events on :class:`._Dispatch` classes.""" __slots__ = ('name', 'arg_names', 'has_kw', - 'legacy_signatures', '_clslevel') + 'legacy_signatures', '_clslevel', '__weakref__') def __init__(self, parent_dispatch_cls, fn): self.name = fn.__name__ @@ -230,9 +230,7 @@ class _EmptyListener(_InstanceLevelDispatch): class _CompoundListener(_InstanceLevelDispatch): - _exec_once = False - - __slots__ = '_exec_once_mutex', + __slots__ = '_exec_once_mutex', '_exec_once' def _memoized_attr__exec_once_mutex(self): return threading.Lock() @@ -279,11 +277,14 @@ class _ListenerCollection(_CompoundListener): """ - __slots__ = 'parent_listeners', 'parent', 'name', 'listeners', 'propagate' + __slots__ = ( + 'parent_listeners', 'parent', 'name', 'listeners', + 'propagate', '__weakref__') def __init__(self, parent, target_cls): if target_cls not in parent._clslevel: parent.update_subclass(target_cls) + self._exec_once = False self.parent_listeners = parent._clslevel[target_cls] self.parent = parent self.name = parent.name @@ -339,11 +340,10 @@ class _ListenerCollection(_CompoundListener): class _JoinedListener(_CompoundListener): - _exec_once = False - __slots__ = 'parent', 'name', 'local', 'parent_listeners' def __init__(self, parent, name, local): + self._exec_once = False self.parent = parent self.name = name self.local = local |