This document describes the current stable version of Celery (4.0). For development docs, go here.
celery.utils.dispatch.saferef¶
Safe weakrefs, originally from pyDispatcher.
Provides a way to safely weakref any function, including bound methods (which aren’t handled by the core weakref module).
-
celery.utils.dispatch.saferef.safe_ref(target, on_delete=None)[source]¶ Return a safe weak reference to a callable target.
Parameters: - target (Any) – The object to be weakly referenced, if it’s a
bound method reference, will create a
BoundMethodWeakref, otherwise creates a simpleweakref.ref. - on_delete (Callable) – If provided, will have a hard reference stored
to the callable to be called after the safe reference
goes out of scope with the reference object, (either a
weakref.refor aBoundMethodWeakref) as argument.
- target (Any) – The object to be weakly referenced, if it’s a
bound method reference, will create a
