From: Alex Martelli [mailto:aleaxit@yahoo.com]

Raymond and I would like to use it as the descriptor for the new list.sorted.

If the code gets in Python anyway, then it should ideally be somehow exposed for general use if it's right -- but not if it's wrong.

OK. I follow now. The only contribution I will make is to say that if list.sorted uses it, I think it should be available to the user. I don't like the flavour of "good enough for us, but not for you" that keeping this descriptor purely internal seems to have. On list.sorted, I have no opinion. Paul.