On Mon, Oct 29, 2012 at 11:04 AM, Patrick Marsh <patrickmars...@gmail.com>wrote:
> Turns out it isn't the commit I thought it was. I'm currently going > through a git bisect to track down the actual commit that introduced this > bug. I'll post back when I've found it. > > > PTM > --- > Patrick Marsh > Ph.D. Candidate / Liaison to the HWT > School of Meteorology / University of Oklahoma > Cooperative Institute for Mesoscale Meteorological Studies > National Severe Storms Laboratory > http://www.patricktmarsh.com > > > > On Mon, Oct 29, 2012 at 9:43 AM, Benjamin Root <ben.r...@ou.edu> wrote: > >> >> >> On Mon, Oct 29, 2012 at 10:33 AM, Sebastian Berg < >> sebast...@sipsolutions.net> wrote: >> >>> Hey, >>> >>> On Mon, 2012-10-29 at 09:54 -0400, Benjamin Root wrote: >>> > This error started showing up in the test suite for mpl when using >>> > numpy master. >>> > >>> > AttributeError: incompatible shape for a non-contiguous array >>> > >>> > The tracebacks all point back to various code points where we are >>> > trying to set the shape of an array, e.g., >>> > >>> > offsets.shape = (-1, 2) >>> > >>> Could you give a hint what these arrays history (how it was created) and >>> maybe .shape/.strides is? Sounds like the array is not contiguous when >>> it is expected to be, or the attribute setting itself fails in some >>> corner cases on master? >>> >>> Regards, >>> >>> Sebastian >>> >>> >> The original reporter of the bug dug into the commit list and suspects it >> was this one: >> >> >> https://github.com/numpy/numpy/commit/02ebf8b3e7674a6b8a06636feaa6c761fcdf4e2d >> >> However, it might be earlier than that (he is currently doing a clean >> rebuild to make sure). >> >> As for the history: >> >> offsets = np.asanyarray(offsets) >> offsets.shape = (-1, 2) # Make it Nx2 >> >> Where "offsets" comes in from (possibly) user-supplied data. Nothing >> really all that special. I will see if I can get stride information. >> >> Ben Root >> >> Further digging reveals that the code fails when the array is originally 1-D. I had an array with shape (2,) and stride (8,). The reshaping should result in a shape of (1, 2). Ben Root
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