[Numpy-discussion] ANN: 1.8.0b2 release.

[Charles R Harris]

On Sat, Sep 14, 2013 at 12:12 AM, Christoph Gohlke <cgohlke at uci.edu> wrote:

> On 9/13/2013 7:10 PM, Charles R Harris wrote:
> > Hi Christolph,
> >
> > Could you debug this a bit?
> >
> > ERROR: test_record_no_hash (test_multiarray.TestRecord)
> > ----------------------------------------------------------------------
> > Traceback (most recent call last):
> >     File
> > "X:\Python33\lib\site-
> > packages\numpy\core\tests\test_multiarray.py",
> > line 2464, in test_record_no_hash
> >       self.assertRaises(TypeError, hash, a[0])
> >     File "X:\Python33\lib\unittest\case.py", line 570, in assertRaises
> >       return context.handle('assertRaises', callableObj, args, kwargs)
> >     File "X:\Python33\lib\unittest\case.py", line 135, in handle
> >       callable_obj(*args, **kwargs)
> >     File "X:\Python33\lib\unittest\case.py", line 153, in __exit__
> >       self.obj_name))
> > TypeError: unhashable type: 'writeable void-scalar'
> >
> >
> > I don't understand that at all.
> >
> > <snip>
> >
> > Chuck
> >
>
> I could reproduce the weirdness outside the testsuite on 64 bit Python
> 3.2, 3.3 and 3.4. It looks like the interpreter gets corrupted.
>
> It could be due to numpy 1.8 using a wrong signature for the hash
> function [1] on win-amd64-py3.x. Since Python 3.2 the return value must
> be of type `Py_hash_t` (defined as `Py_ssize_t`) [2], not `C long` as
> for Python <= 3.1.
>
> [1]
>
> https://github.com/numpy/numpy/blob/master/numpy/core/src/multiarray/scalartypes.c.src#L3038
> [2] http://docs.python.org/3.2/c-api/typeobj.html#PyTypeObject.tp_hash
>
>
That would do it. I'll bet you are right.

Chuck
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