def _load(self, sched): """Load data from persistent store""" S_s, s_s = self._setup_plugins() sc = GetSourceController() direct_sources = set(S_s) other_sources = set(s_s) - direct_sources sc.add(direct_sources, toplevel=True) sc.add(other_sources, toplevel=False) sc.cache_toplevel_sources() self.source_pane.source_rebase(sc.root) learn.load()