"""Custom `Factory` example.""" from dependency_injector import providers class User(object): """Example class User.""" class UsersFactory(providers.Provider): """Example users factory.""" __slots__ = ('_factory',) def __init__(self): """Initializer.""" self._factory = providers.Factory(User) super(UsersFactory, self).__init__() def _provide(self, *args, **kwargs): """Return provided instance. :param args: tuple of context positional arguments :type args: tuple[object] :param kwargs: dictionary of context keyword arguments :type kwargs: dict[str, object] :rtype: object """ return self._factory(*args, **kwargs) # Users factory: users_factory = UsersFactory() # Creating several User objects: user1 = users_factory() user2 = users_factory() # Making some asserts: assert isinstance(user1, User) assert isinstance(user2, User) assert user1 is not user2