id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 28169 Unable to disconnect signal James Addison nobody "I am looking to disconnect the `post_init` signal in a management command due to exceptions it raises in my scenario. My disconnect looks like this: {{{#!python signals.post_init.disconnect(ImageField.update_dimension_fields, sender=Bug) }}} If I'm doing something wrong, I'd love to know what. Digging in a bit, it's caused by the fact that the lookup key generated in the `.connect()` at https://github.com/django/django/blob/stable/1.11.x/django/dispatch/dispatcher.py#L105 differs from the one generated in `.disconnect()` at https://github.com/django/django/blob/stable/1.11.x/django/dispatch/dispatcher.py#L153 Maybe related to #22657. See the attached project to reproduce. " Bug closed Database layer (models, ORM) 1.11 Normal invalid Unreviewed 0 0 0 0 0 0