Is the PEP considering all non-private APIs public even if they are not documented? If so we might want to be up front about that and say so to make sure we are all very careful about making all non-essential APIs private (assuming this PEP gets accepted). And we might want to say that all code in 'test' sub-packages are not subject to backwards compatibility unless documented. I have a ton of support code in importlib.test that I do not want to have to maintain for public consumption as they are meant solely for testing purposes by me. If you read the PEP it would suggest that all modules in test are subject to the PEP's compatibility policy which is obviously absurd. -Brett