1 from django.dispatch import Signal

     2 

     3 class_prepared = Signal(providing_args=["class"])

     4 

     5 pre_init = Signal(providing_args=["instance", "args", "kwargs"])

     6 post_init = Signal(providing_args=["instance"])

     7 

     8 pre_save = Signal(providing_args=["instance", "raw"])

     9 post_save = Signal(providing_args=["instance", "raw", "created"])

    10 

    11 pre_delete = Signal(providing_args=["instance"])

    12 post_delete = Signal(providing_args=["instance"])

    13 

    14 post_syncdb = Signal(providing_args=["class", "app", "created_models", "verbosity", "interactive"])

    15 

    16 m2m_changed = Signal(providing_args=["action", "instance", "reverse", "model", "pk_set"])