On Mon, Oct 21, 2019 at 4:33 AM Steve White <stevan.wh...@gmail.com> wrote: > The options for following the documentation in this situation are: > either subject users to unfamiliar, custom-made container classes, or > give up the semantics of the "==" operator. > > It seems so unnecessary, given (my understanding of) how the classes > actually function. > > What can be done? I would be willing to consider a technical solution. > > I would like to see the documentation revised to reflect the actual > workings of the existing container classes. A couple of sentences in > the documentation of __hash__ could fix the problem.
The definition of __hash__ is still correct. What you're looking at is a very specific situation wherein an object is not equal to itself - that's incredibly rare (in the core language, the ONLY thing that can ever be like this is a NaN). The dictionary's rule is that it finds any object that is either identical to, or equal to, the thing you asked for. ChrisA -- https://mail.python.org/mailman/listinfo/python-list