I’m not sure what the best solution is. I am just pointing out the problem. It seems an “importer” as mentioned in PEP 302 is more general than the current glossary definition. E.g. ImpImporter() returns an object that has a find_module() method (which partially makes it both a “meta path finder” and a “path entry finder”), but it has no load_module() method. So it fails the “importer” definition according to the current glossary.