Re: [Numpy-discussion] Extent to which to work around matrix and other duck/subclass limitations

On Tue, 11 Jun 2019 15:10:16 -0400, Marten van Kerkwijk wrote:

In a way, I brought it up mostly as a concrete example of an internal implementation which we cannot change to an objectively cleaner one because other packages rely on an out-of-date numpy API.

This, and the comments Nathaniel made on the array function thread, are important to take note of. Would it be worth updating NEP 18 with a list of pitfalls? Or should this be a new informational NEP that discusses—on a higher level—the benefits, risks, and design considerations of providing protocols? Stéfan