[SciPy-Dev] ANN: SciPy 0.9.0 beta 1

Benjamin Root ben.root@ou....
Tue Dec 14 10:01:55 CST 2010


On Tue, Dec 14, 2010 at 6:38 AM, Ralf Gommers
<ralf.gommers@googlemail.com>wrote:

>
>
> On Tue, Dec 14, 2010 at 12:43 AM, Benjamin Root <ben.root@ou.edu> wrote:
>
>> On Mon, Dec 13, 2010 at 10:12 AM, Ralf Gommers <
>> ralf.gommers@googlemail.com> wrote:
>>
>>> Hi,
>>>
>>> I am pleased to announce the availability of the first beta of SciPy
>>> 0.9.0. This will be the first SciPy release to include support for
>>> Python 3, as well as for Python 2.7. Please try this beta and report any
>>> problems on the scipy-dev mailing list.
>>>
>>> Binaries, sources and release notes can be found athttp://sourceforge.net/projects/scipy/files/scipy/0.9.0b1/<https://sourceforge.net/projects/numpy/files/>.
>>> Note that not all binaries (win32-py27, *-macosx10.3) are uploaded yet, they
>>> will follow in the next day or two.
>>>
>>> There are still a few known issues (so no need to report these):
>>> 1. Arpack related errors on 64-bit OS X.
>>> 2. Correlate complex192 errors on Windows.
>>> 3. correlate/conjugate current behavior is deprecated and should be
>>> removed before RC1.
>>>
>>> Enjoy,
>>> Ralf
>>>
>>>
> Hi Ben,
>
>>
>> Just did a clean rebuild (after a clean rebuild of numpy) and had two
>> errors in the tests:
>>
>
> What platform are you on?
>

I reran the tests on just this scipy.misc module, here is the output:

>>> scipy.misc.test()
Running unit tests for scipy.misc
NumPy version 2.0.0.dev-799179d
NumPy is installed in /home/bvr/Programs/numpy/numpy
SciPy version 0.10.0.dev
SciPy is installed in /home/bvr/Programs/scipy/scipy
Python version 2.6.4 (r264:75706, Jun  4 2010, 18:20:16) [GCC 4.4.4 20100503
(Red Hat 4.4.4-2)]
nose version 0.11.3
...........F.....
======================================================================
FAIL: test_imresize (test_pilutil.TestPILUtil)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/bvr/Programs/numpy/numpy/testing/decorators.py", line 146, in
skipper_func
    return f(*args, **kwargs)
  File "/home/bvr/Programs/scipy/scipy/misc/tests/test_pilutil.py", line 28,
in test_imresize
    assert_equal(im1.shape,(11,22))
  File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 251, in
assert_equal
    assert_equal(actual[k], desired[k], 'item=%r\n%s' % (k,err_msg),
verbose)
  File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 313, in
assert_equal
    raise AssertionError(msg)
AssertionError:
Items are not equal:
item=0

 ACTUAL: 10
 DESIRED: 11

----------------------------------------------------------------------
Ran 17 tests in 0.089s

FAILED (failures=1)
<nose.result.TextTestResult run=17 errors=0 failures=1>

Note, that I am still getting this error with the suggested addition of
"np.random.seed(12345678)" to scipy/misc/tests/test_pilutil.py.  I tried it
both at line 20 (before the call to class TestPILUtil) and at line 24
(before the call to np.random.random() in test_imresize.  I do not see how
setting the seed value for these tests would make any difference since they
are merely testing the resulting shape of the image after a resize, not the
values of the resized image itself.


>
>> ======================================================================
>> FAIL: test_imresize (test_pilutil.TestPILUtil)
>> ----------------------------------------------------------------------
>> Traceback (most recent call last):
>>   File "/home/bvr/Programs/numpy/numpy/testing/decorators.py", line 146,
>> in skipper_func
>>     return f(*args, **kwargs)
>>   File "/home/bvr/Programs/scipy/scipy/misc/tests/test_pilutil.py", line
>> 25, in test_imresize
>>     assert_equal(im1.shape,(11,22))
>>   File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 251, in
>> assert_equal
>>     assert_equal(actual[k], desired[k], 'item=%r\n%s' % (k,err_msg),
>> verbose)
>>   File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 313, in
>> assert_equal
>>     raise AssertionError(msg)
>> AssertionError:
>> Items are not equal:
>> item=0
>>
>>  ACTUAL: 10
>>  DESIRED: 11
>>
>
> This test should be changed to use a fixed seed (add as a first line of the
> test "np.random.seed(12345678)"). Can you provide one that fails?
>
>

Also, I am not sure what you mean by "Can you provide one that fails?".


>
>> ======================================================================
>> FAIL: test_basic (test_signaltools.TestMedFilt)
>> ----------------------------------------------------------------------
>> Traceback (most recent call last):
>>   File "/home/bvr/Programs/scipy/scipy/signal/tests/test_signaltools.py",
>> line 284, in test_basic
>>     [ 0,  7, 11,  7,  4,  4, 19, 19, 24,  0]])
>>   File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 686, in
>> assert_array_equal
>>     verbose=verbose, header='Arrays are not equal')
>>   File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 618, in
>> assert_array_compare
>>     raise AssertionError(msg)
>> AssertionError:
>> Arrays are not equal
>>
>> (mismatch 8.0%)
>>  x: array([[  0.,  50.,  50.,  50.,  42.,  15.,  15.,  18.,  27.,   0.],
>>        [  0.,  50.,  50.,  50.,  50.,  42.,  19.,  21.,  29.,   0.],
>>        [ 50.,  50.,  50.,  50.,  50.,  47.,  34.,  34.,  46.,  35.],...
>>  y: array([[ 0, 50, 50, 50, 42, 15, 15, 18, 27,  0],
>>        [ 0, 50, 50, 50, 50, 42, 19, 21, 29,  0],
>>        [50, 50, 50, 50, 50, 47, 34, 34, 46, 35],...
>>
>> ----------------------------------------------------------------------
>> Ran 4822 tests in 199.244s
>>
>> FAILED (KNOWNFAIL=12, SKIP=35, failures=2)
>> <nose.result.TextTestResult run=4822 errors=0 failures=2>
>>
>>
Oddly enough, this second error does not always repeat itself (I had one run
of the test where it did not happen...).  Also, something interesting
occurred while trying to get more verbose output from scipy.signal.test.
When I ran it for the second time in a python session, a regression error
pops up, but this never happens in the first run of the test.

======================================================================
FAIL: Regression test for #651: better handling of badly conditioned
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/bvr/Programs/scipy/scipy/signal/tests/test_filter_design.py",
line 32, in test_bad_filter
    assert_raises(BadCoefficients, tf2zpk, [1e-15], [1.0, 1.0])
  File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 982, in
assert_raises
    return nose.tools.assert_raises(*args,**kwargs)
AssertionError: BadCoefficients not raised

I hope this is helpful.  Let me know what other information I can provide.

Ben Root
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