Fixed #36939 -- Avoided weakref.finalize in Signal.connect().

Replaced weak receiver registration in Signal.connect() to pass
_flag_dead_receivers directly as the callback for weakref.ref() and
weakref.WeakMethod() instead of creating weakref.finalize() objects.

This prevented finalizer accumulation in repeated weak
connect()/disconnect() cycles where receivers remain alive.

1 files changed, 1 insertions, 4 deletions

diff --git a/django/dispatch/dispatcher.py b/django/dispatch/dispatcher.py
index d4a6eff2bc..aef6a942b1 100644
--- a/django/dispatch/dispatcher.py
+++ b/django/dispatch/dispatcher.py
@@ -154,13 +154,10 @@ class Signal:
 
         if weak:
             ref = weakref.ref
-            receiver_object = receiver
             # Check for bound methods
             if hasattr(receiver, "__self__") and hasattr(receiver, "__func__"):
                 ref = weakref.WeakMethod
-                receiver_object = receiver.__self__
-            receiver = ref(receiver)
-            weakref.finalize(receiver_object, self._flag_dead_receivers)
+            receiver = ref(receiver, self._flag_dead_receivers)
 
         # Keep a weakref to sender if possible to ensure associated receivers
         # are cleared if it gets garbage collected. This ensures there is no