Method init

lib/sqlalchemy/orm/events.py:339–368

Receive an instance when its constructor is called. This method is only called during a userland construction of an object, in conjunction with the object's constructor, e.g. its ``__init__`` method. It is not called when an object is loaded from the database; see t

(self, target: _O, args: Any, kwargs: Any)

        _InstanceEventsHold._clear()

    def init(self, target: _O, args: Any, kwargs: Any) -> None:
        """Receive an instance when its constructor is called.

        This method is only called during a userland construction of
        an object, in conjunction with the object's constructor, e.g.
        its ``__init__`` method.  It is not called when an object is
        loaded from the database; see the :meth:`.InstanceEvents.load`
        event in order to intercept a database load.

        The event is called before the actual ``__init__`` constructor
        of the object is called.  The ``kwargs`` dictionary may be
        modified in-place in order to affect what is passed to
        ``__init__``.

        :param target: the mapped instance.  If
         the event is configured with ``raw=True``, this will
         instead be the :class:`.InstanceState` state-management
         object associated with the instance.
        :param args: positional arguments passed to the ``__init__`` method.
         This is passed as a tuple and is currently immutable.
        :param kwargs: keyword arguments passed to the ``__init__`` method.
         This structure *can* be altered in place.

        .. seealso::

            :meth:`.InstanceEvents.init_failure`

            :meth:`.InstanceEvents.load`

        """

    def init_failure(self, target: _O, args: Any, kwargs: Any) -> None:
        """Receive an instance when its constructor has been called,