[SciPy-User] Test failures with SciPy-0.10.1 and Mac OS X Lion

[Adam Mercer]

Hi

I've been updating the scipy in MacPorts and when updating to 0.10.1
the test suite now has the following failures:

$ python
Python 2.7.2 (default, Mar  1 2012, 20:21:11)
[GCC 4.2.1 Compatible Apple Clang 3.1 (tags/Apple/clang-318.0.45)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import scipy
>>> scipy.test()
Running unit tests for scipy
NumPy version 1.6.1
NumPy is installed in
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy
SciPy version 0.10.1
SciPy is installed in
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy
Python version 2.7.2 (default, Mar  1 2012, 20:21:11) [GCC 4.2.1
Compatible Apple Clang 3.1 (tags/Apple/clang-318.0.45)]
nose version 1.1.2
<snip>
======================================================================
FAIL: test_asum (test_blas.TestFBLAS1Simple)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/lib/blas/tests/test_blas.py",
line 58, in test_asum
    assert_almost_equal(f([3,-4,5]),12)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 468, in assert_almost_equal
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 7 decimals
 ACTUAL: 0.0
 DESIRED: 12

======================================================================
FAIL: test_dot (test_blas.TestFBLAS1Simple)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/lib/blas/tests/test_blas.py",
line 67, in test_dot
    assert_almost_equal(f([3,-4,5],[2,5,1]),-9)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 468, in assert_almost_equal
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 7 decimals
 ACTUAL: 0.0
 DESIRED: -9

======================================================================
FAIL: test_nrm2 (test_blas.TestFBLAS1Simple)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/lib/blas/tests/test_blas.py",
line 78, in test_nrm2
    assert_almost_equal(f([3,-4,5]),math.sqrt(50))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 468, in assert_almost_equal
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 7 decimals
 ACTUAL: 0.0
 DESIRED: 7.0710678118654755

======================================================================
FAIL: test_basic.TestNorm.test_overflow
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nose/case.py",
line 197, in runTest
    self.test(*self.arg)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/linalg/tests/test_basic.py",
line 581, in test_overflow
    assert_almost_equal(norm(a), a)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 452, in assert_almost_equal
    return assert_array_almost_equal(actual, desired, decimal, err_msg)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 800, in assert_array_almost_equal
    header=('Arrays are not almost equal to %d decimals' % decimal))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 636, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 7 decimals

(mismatch 100.0%)
 x: array(-0.0)
 y: array([  1.00000002e+20], dtype=float32)

======================================================================
FAIL: test_basic.TestNorm.test_stable
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nose/case.py",
line 197, in runTest
    self.test(*self.arg)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/linalg/tests/test_basic.py",
line 586, in test_stable
    assert_almost_equal(norm(a) - 1e4, 0.5)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 468, in assert_almost_equal
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 7 decimals
 ACTUAL: -10000.0
 DESIRED: 0.5

======================================================================
FAIL: test_basic.TestNorm.test_types
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nose/case.py",
line 197, in runTest
    self.test(*self.arg)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/linalg/tests/test_basic.py",
line 568, in test_types
    assert_allclose(norm(x), np.sqrt(14), rtol=tol)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 1168, in assert_allclose
    verbose=verbose, header=header)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 636, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Not equal to tolerance rtol=2.38419e-06, atol=0

(mismatch 100.0%)
 x: array(1.0842021724855044e-19)
 y: array(3.7416573867739413)

======================================================================
FAIL: test_asum (test_blas.TestFBLAS1Simple)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/linalg/tests/test_blas.py",
line 99, in test_asum
    assert_almost_equal(f([3,-4,5]),12)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 468, in assert_almost_equal
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 7 decimals
 ACTUAL: 0.0
 DESIRED: 12

======================================================================
FAIL: test_dot (test_blas.TestFBLAS1Simple)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/linalg/tests/test_blas.py",
line 109, in test_dot
    assert_almost_equal(f([3,-4,5],[2,5,1]),-9)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 468, in assert_almost_equal
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 7 decimals
 ACTUAL: 0.0
 DESIRED: -9

======================================================================
FAIL: test_nrm2 (test_blas.TestFBLAS1Simple)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/linalg/tests/test_blas.py",
line 127, in test_nrm2
    assert_almost_equal(f([3,-4,5]),math.sqrt(50))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
line 468, in assert_almost_equal
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 7 decimals
 ACTUAL: 0.0
 DESIRED: 7.0710678118654755

----------------------------------------------------------------------
Ran 5101 tests in 86.528s

FAILED (KNOWNFAIL=12, SKIP=31, failures=9)
<nose.result.TextTestResult run=5101 errors=0 failures=9>

I can't recall seeing these failures before, this has been compiled
using the compilers from Xcode-4.3?

Are these anything to worry about?

Cheers

Adam