[Numpy-discussion] Mysterious test_pareto failure on Travis

Nathaniel Smith njs at pobox.com
Tue Sep 4 09:18:18 EDT 2012

On Tue, Sep 4, 2012 at 1:47 PM, Scott Sinclair
<scott.sinclair.za at gmail.com> wrote:
> On 4 September 2012 12:23, Matthew Brett <matthew.brett at gmail.com> wrote:
>> On Tue, Sep 4, 2012 at 11:15 AM, Nathaniel Smith <njs at pobox.com> wrote:
>>> The last two Travis builds of master have failed consistently with the
>>> same error:
>>>   http://travis-ci.org/#!/numpy/numpy/builds
>>> It looks like a real failure -- we're getting the same error on every
>>> build variant, some sort of problem in test_pareto. Example:
>>>   http://travis-ci.org/#!/numpy/numpy/jobs/2328823
>>> The obvious culprit would be the previous commit, which regenerated
>>> mtrand.c with Cython 0.17:
>>>   http://github.com/numpy/numpy/commit/cd9092aa71d23359b33e89d938c55fb14b9bf606
>>> What's weird, though, is that that commit passed just fine on Travis:
>>>   http://travis-ci.org/#!/numpy/numpy/builds/2313124
>>> It's just the two commits since then that failed. But these commits
>>> have been 1-line docstring changes, so I don't see how they could have
>>> possibly created the problem.
>>> Also, the test passes fine with python 2.7 on my laptop with current master.
>>> Can anyone reproduce this failure? Any ideas what might be going on?
>> I believe Travis just (a couple of days ago?) switched to Ubuntu 12.04
>> images - could that be the problem?
> For whatever it's worth, tox reports:
>   py24: commands succeeded
>   py25: commands succeeded
>   py26: commands succeeded
>   py27: commands succeeded
> ERROR:   py31: InterpreterNotFound: python3.1
>   py32: commands succeeded
>   py27-separate: commands succeeded
>   py32-separate: commands succeeded
> with git revision a72ce7e on my Ubuntu 12.04 machine (64-bit).

It works for me on 64-bit 12.04 too. However, the Travis machines are
using *32*-bit 12.04, which might be the problem... anyone got one of
those lying around to test?


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