def _find_adapter(registry, ob):
    """Return an adapter factory for `ob` from `registry`"""
    types = _always_object(inspect.getmro(getattr(ob, '__class__', type(ob))))
    for t in types:
        if t in registry:
            return registry[t]
Return an adapter factory for `ob` from `registry`
product/runtime/src/main/python/pkg_resources/__init__.py