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Diffstat (limited to 'lib/sqlalchemy/event.py')
| -rw-r--r-- | lib/sqlalchemy/event.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sqlalchemy/event.py b/lib/sqlalchemy/event.py index 79d024f9b..33626cf2a 100644 --- a/lib/sqlalchemy/event.py +++ b/lib/sqlalchemy/event.py @@ -378,6 +378,8 @@ class _EmptyListener(object): def __bool__(self): return bool(self.parent_listeners) + __nonzero__ = __bool__ + class _CompoundListener(object): _exec_once = False @@ -415,6 +417,7 @@ class _CompoundListener(object): def __bool__(self): return bool(self.listeners or self.parent_listeners) + __nonzero__ = __bool__ class _ListenerCollection(_CompoundListener): """Instance-level attributes on instances of :class:`._Dispatch`. |