diff options
Diffstat (limited to 'lib/sqlalchemy/orm/instrumentation.py')
| -rw-r--r-- | lib/sqlalchemy/orm/instrumentation.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/instrumentation.py b/lib/sqlalchemy/orm/instrumentation.py index 51cf9edeb..0e71494c4 100644 --- a/lib/sqlalchemy/orm/instrumentation.py +++ b/lib/sqlalchemy/orm/instrumentation.py @@ -72,6 +72,13 @@ class ClassManager(dict): self.manage() self._instrument_init() + if '__del__' in class_.__dict__: + util.warn("__del__() method on class %s will " + "cause unreachable cycles and memory leaks, " + "as SQLAlchemy instrumentation often creates " + "reference cycles. Please remove this method." % + class_) + dispatch = event.dispatcher(events.InstanceEvents) @property |