[Numpy-discussion] 1.8.0rc1

Nathaniel Smith njs at pobox.com
Wed Oct 2 05:04:09 EDT 2013

This is a complicated issue to describe but i think the bottom line is that
the test is just wonky here. the behaviour it's checking for is:
wrong in old numpy, but we do it anyway (bug)
wrong in current numpy without RELAXED_STRIDES, and we get it right (I.e.
don't do it, fixed bug)
correct in current numpy with RELAXED_STRIDES (and I think the test will
pass if you build 1.8 this way?) (fixed bug again, since the definition of
"correct" flipped)
correct in future numpys

(@seberg, does that look right?)

I guess maybe we could go back and make sure it stays broken in 1.8, but
it's probably not worth the trouble because this is such a corner case.
Nothing real is going to break because of this AFAICT.

On 2 Oct 2013 08:31, "Christoph Gohlke" <cgohlke at uci.edu> wrote:

> On 9/30/2013 8:17 AM, Charles R Harris wrote:
>> Hi All,
>> NumPy 1.8.0rc1 is up now on sourceforge
>> <http://sourceforge.net/**projects/numpy/files/NumPy/1.**8.0rc1/<http://sourceforge.net/projects/numpy/files/NumPy/1.8.0rc1/>>
>> .The
>> binary builds are included except for Python 3.3 on windows, which will
>> arrive later. Many thanks to Ralf for the binaries, and to those who
>> found and fixed the bugs in the last beta. Any remaining bugs are all my
>> fault ;) I hope this will be the last release before final, so please
>> test it thoroughly.
>> Chuck
> One more: Cython-0.19.1 fails relaxed_strides.test_one_sized with
> "ValueError: ndarray is not C-contiguous". Tested on
> numpy-MKL-1.8.0rc1-win-amd64-**py2.7 and msvc9.
> https://github.com/cython/**cython/blob/0.19.x/tests/**
> memoryview/relaxed_strides.**pyx#L29<https://github.com/cython/cython/blob/0.19.x/tests/memoryview/relaxed_strides.pyx#L29>
> The relevant test output is attached.
> Christoph
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