Serhiy Storchaka wrote: > Actually, the == operator cannot return NotImplemented.
Thanks for the clarification. What is the reason for this limitation and is it only possible for the `==` operator to return one of `None`, `False`, or `True`? It seems like it would be useful for it to be able to return `NotImplemented` in situations such as this. Also, I think that I may have had some misconceptions with regards to the relationship between the `__eq__()` method and the `==` operator. I know they are not the same, but isn't the result of the `==` operator based on a transformation of the result from `__eq__()`? As far as I can tell, the equality of two dictionary views are assessing used [`PyObject dictrich_compare`](https://github.com/python/cpython/blob/544fa15ea1b7b73068319bdb217b684e2fd7bacc/Objects/dictobject.c#L4040). Wouldn't it be possible to perform a conditional check if the view on the left side of the comparison is a values view and if so, use `Py_RETURN_NOTIMPLEMENTED`? Apologies if I'm completely off base here, my experience and understanding of the underlying C-API is quite limited. I've been programming with Python for quite some time, but I only started learning the C-API once I became interested in contributing to CPython. _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/72XO7ZWL6XZLQGDSHFSBENBHK5OG7HD4/