Method callable_for_path

lib/sqlalchemy/orm/loading.py:1591–1605

(
        cls, context, path, limit_to_mapper, token, loader_callable, *arg, **kw
    )

    @classmethod
    def callable_for_path(
        cls, context, path, limit_to_mapper, token, loader_callable, *arg, **kw
    ):
        if path.path in context.post_load_paths:
            pl = context.post_load_paths[path.path]
        else:
            pl = context.post_load_paths[path.path] = _PostLoad()
        pl.loaders[token] = (
            context,
            token,
            limit_to_mapper,
            loader_callable,
            arg,
            kw,
        )


def _load_scalar_attributes(mapper, state, attribute_names, passive):