django.git/django/dispatch, branch main

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

2026-03-17T21:08:18Z

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.

Refs #34118 -- Removed asgiref coroutine detection shims.

2026-01-31T13:59:54Z

As Python 3.12 is now the floor, we can drop the shims and use the `inspect` module.

Fixed #36714 -- Fixed context sharing among async signal handlers.

2025-12-29T14:48:11Z

Fixed #36315 -- Used TaskGroup instead of asyncio.gather().

2025-11-07T18:17:25Z

Refs #36500 -- Corrected rewrapped long lines fixed via a script.

2025-07-23T23:17:55Z

Manually reformatted some comments and docstrings where autofix_w505.py changed the meaning of the formatting.

Refs #36500 -- Rewrapped long docstrings and block comments via a script.

2025-07-23T23:17:55Z

Rewrapped long docstrings and block comments to 79 characters + newline using script from https://github.com/medmunds/autofix-w505.

Fixed #35801 -- Prevented collision of senders with non-overlapping lifetimes.

2025-04-23T12:09:46Z

As documented, the id() function can return the same value for distinct objects with non-overlapping lifetimes which can result in signals being sent to the wrong receivers if two distinct senders happen to have a colliding id() value. Since reproduction of the issue requires memory constrained circumstances where the same exact id() is reused for two senders of the same signal the test opt to simulate the collision by systematically making the same id for Sender instances. Note that we explicitly avoid keeping a strong reference to senders that cannot be weakly referenced as that would unexpectedly prevent them from being garbage collected. This means that id(sender) collisions could still occur for such objects but Django itself doesn't make use of them. Thanks Sjoerd Job Postmus for the reduced test case and Mariusz for the review. Co-authored-by: And Clover

Fixed #35174 -- Fixed Signal.asend()/asend_robust() crash when all receivers are asynchronous.

2024-02-08T10:36:28Z

Regression in e83a88566a71a2353cebc35992c110be0f8628af.

Fixed #32172 -- Adapted signals to allow async handlers.

2023-03-07T07:39:25Z

co-authored-by: kozzztik co-authored-by: Carlton Gibson

Refs #33476 -- Reformatted code with Black.

2022-02-07T19:37:05Z