[SciPy-User] ANN: NumPy 1.6.0 - FAIL: test_expon (test_morestats.TestAnderson)

[josef.pktd at gmail.com]

On Sat, May 14, 2011 at 6:44 AM, Yury V. Zaytsev <yury at shurup.com> wrote:
> Hi!
>
> On Sat, 2011-05-14 at 11:54 +0200, Ralf Gommers wrote:
>>
>> I am pleased to announce the release of NumPy 1.6.0. This release is
>> the result of 9 months of work, and includes many new features,
>> performance improvements and bug fixes. Some highlights are:
>
> Congratulations! Absolutely great news!
>
> I have started to update my private builds on Ubuntu Maverick 64-bit:
>
> $ uname -a
> Linux newpride 2.6.35-28-generic #50-Ubuntu SMP Fri Mar 18 18:42:20 UTC 2011 x86_64 GNU/Linux
>
> I am building against ATLAS optimized for Core i7:
>
> sudo apt-get install libatlas3gf-corei7sse3 libatlas3gf-corei7sse3-dev
>
> export BLAS=/usr/lib/libblas.so
> export LAPACK=/usr/lib/liblapack.so
> export ATLAS=/usr/lib/libatlas.so
>
> pip install numpy
> pip install scipy
>
> The NumPy builds fine and passes the test suite, however, when I rebuild
> latest SciPy 0.9.0 against latest NumPy 1.6.0 I am getting one test
> failure:
>
> ======================================================================
> FAIL: test_expon (test_morestats.TestAnderson)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>  File "/srv/virtualenv/mle/lib/python2.7/site-packages/scipy/stats/tests/test_morestats.py", line 72, in test_expon
>    assert_array_less(crit[:-1], A)
>  File "/srv/virtualenv/mle/lib/python2.7/site-packages/numpy/testing/utils.py", line 869, in assert_array_less
>    header='Arrays are not less-ordered')
>  File "/srv/virtualenv/mle/lib/python2.7/site-packages/numpy/testing/utils.py", line 613, in assert_array_compare
>    chk_same_position(x_id, y_id, hasval='inf')
>  File "/srv/virtualenv/mle/lib/python2.7/site-packages/numpy/testing/utils.py", line 588, in chk_same_position
>    raise AssertionError(msg)
> AssertionError:
> Arrays are not less-ordered
>
> x and y inf location mismatch:
>  x: array([ 0.911,  1.065,  1.325,  1.587])
>  y: array(inf)

That's just an old, not well written test that needs to be updated.
assert_array_less got a bit stricter and now also verifies that the
shapes of the arrays match.

Nothing to worry about, but it needs to be cleaned up in scipy.

Josef


>
> ----------------------------------------------------------------------
>
> This doesn't happen if I build SciPy 0.9.0 against NumPy 1.5.0, all the
> tests pass.
>
> Hope that helps to figure out the problem,
>
> --
> Sincerely yours,
> Yury V. Zaytsev
>
>
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