[Numpy-discussion] I think something broke badly today in numpy/scipy...
oliphant.travis at ieee.org
Sat Jul 8 04:33:01 CDT 2006
Fernando Perez wrote:
> Hi all,
> I updated earlier today (about 4 hours ago) numpy/scipy SVN, and all
> of a sudden my codes broke left and right. Backing off to
Hey Fernando. I think I found the problem. It was the same problem
causing the BFGS test to fail in SciPy.
It can be shown by looking at
sk = [0,-1.0,1.0]
This should give something useful (not zeros).
The problem was a seemingly harmless change in _IsContiguous that
allowed for 0-strided arrays to be called contiguous. This caused havoc
with the multiplication function later which relied on an accurate
This change was in r2765 (I suspect you checked out a change with that
in it). The change could cause problems where-ever you use newaxis with
The problem should be fixed in SVN.
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