[Numpy-discussion] Segmentation fault with argsort

Skipper Seabold jsseabold@gmail....
Fri Dec 18 11:57:00 CST 2009


On Fri, Dec 18, 2009 at 12:52 PM, Robert Kern <robert.kern@gmail.com> wrote:
> On Fri, Dec 18, 2009 at 11:46, Keith Goodman <kwgoodman@gmail.com> wrote:
>> I am using the numpy 1.3 binary from Ubuntu 9.10. Is this already
>> known, fixed, reproducible?
>>
>>>> np.array(121).argsort(0).argsort(0)
>> Segmentation fault
>>
>> The expected result:
>>
>> AttributeError: 'np.int64' object has no attribute 'argsort'
>
> Why would you expect that? On OS X with an SVN checkout ~1.4:
>
> In [1]: np.array(121).argsort(0).argsort(0)
> Out[1]: 0
>
> In [6]: np.int64.argsort
> Out[6]: <method 'argsort' of 'numpy.generic' objects>
>

Kubuntu 9.10

In [1]: import numpy as np

In [2]: np.__version__
Out[2]: '1.4.0.dev7539'

In [3]: np.array(121).argsort(0).argsort(0)
Segmentation fault

-Skipper


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