Small nitpick: multi-dimensional hashing wasn't really accidental,
it was perfectly aligned with the previous statically typed equality
definition.

When I suggested PyBuffer_Hash = hash(obj.tobytes()) on python-dev for
non-contiguous and multi-dimensional arrays, I got a +1 from Raymond
(which I now see was a private message).


I don't see what could possibly be ill-defined about using the
tobytes() definition for ND-arrays. In all places memoryview now
uses the logical array, which is displayed by tolist().

Leaving aside static typing, both the previous and the new equality
definitions regarded C and Fortran arrays with the same list outputs
as equal.