[SciPy-Dev] Schur decomposition test failure under Python 2.5

Ralf Gommers ralf.gommers@googlemail....
Sun Nov 6 02:19:57 CST 2011


On Sun, Nov 6, 2011 at 4:08 AM, <josef.pktd@gmail.com> wrote:

> On Sat, Nov 5, 2011 at 10:26 PM, Bruce Southey <bsouthey@gmail.com> wrote:
> > On Sat, Nov 5, 2011 at 1:40 PM, Ralf Gommers
> > <ralf.gommers@googlemail.com> wrote:
> >> Hi,
> >>
> >> There's a problem with schur(.., sort='lhp') under Python 2.5 that
> seems to
> >> be related to the Lapack function gees:
> >> http://projects.scipy.org/scipy/ticket/1555
> >>
> >> It would be great if someone could have a look at this for the 0.10.0
> >> release, but if not I'll mark it as a knownfailure because it's not a
> >> regression.
> >>
> >> Ralf
> >>
> >>
> >> _______________________________________________
> >> SciPy-Dev mailing list
> >> SciPy-Dev@scipy.org
> >> http://mail.scipy.org/mailman/listinfo/scipy-dev
> >>
> >>
> > I have only tested the RC on my 32-bit Windows install using the
> > provided binary.
> > I get the test_decomp.TestSchur and syntax error in
> test_distributions.py.
> >
> > But buried in the test output (when run within command line Python but
> > not under IDLE) is this:
> > "capi_return is NULL
> > Call-back cb_dselect_in_dgees__user__routines failed."
> >
> > This also appears with the current dev version under Linux.
> >
> > Bruce
> >
> > $ python2.5 test_decomp.py
> >
> ................................................................................................................................................capi_return
> > is NULL
> > Call-back cb_dselect_in_dgees__user__routines failed.
> >
> E.....................................................................................................................................E
> > ======================================================================
> > ERROR: test_sort (test_decomp.TestSchur)
> > ----------------------------------------------------------------------
> > Traceback (most recent call last):
> >  File
> "/home/bsouthey/python/scipystuff/git/scipy/scipy/linalg/tests/test_decomp.py",
> > line 1498, in test_sort
> >    s,u,sdim = schur(a,sort='lhp')
> >  File
> "/usr/local/lib/python2.5/site-packages/scipy/linalg/decomp_schur.py",
> > line 118, in schur
> >    sort_t=sort_t)
> >  File
> "/usr/local/lib/python2.5/site-packages/scipy/linalg/decomp_schur.py",
> > line 106, in <lambda>
> >    sfunction = lambda x: (x.real < 0.0)
> > AttributeError: 'float' object has no attribute 'real'
> >
> > ======================================================================
> > ERROR: test_decomp.test_lapack_misaligned
> > ----------------------------------------------------------------------
> > Traceback (most recent call last):
> >  File "/usr/local/lib/python2.5/site-packages/nose/case.py", line
> > 186, in runTest
> >    self.test(*self.arg)
> >  File
> "/usr/local/lib/python2.5/site-packages/numpy/testing/decorators.py",
> > line 213, in knownfailer
> >    raise KnownFailureTest, msg
> > KnownFailureTest: Ticket #1152, triggers a segfault in rare cases.
> >
> > ----------------------------------------------------------------------
> >
> > Windows errors:
> > ======================================================================
> > ERROR: test_sort (test_decomp.TestSchur)
> > ----------------------------------------------------------------------
> > Traceback (most recent call last):
> >  File "C:\Python25\Lib\site-packages\scipy\linalg\tests\test_decomp.py",
> > line 1230, in test_sort
> >    s,u,sdim = schur(a,sort='lhp')
> >  File "C:\Python25\Lib\site-packages\scipy\linalg\decomp_schur.py",
> > line 118, in schur
> >    sort_t=sort_t)
> >  File "C:\Python25\Lib\site-packages\scipy\linalg\decomp_schur.py",
> > line 106, in <lambda>
> >    sfunction = lambda x: (x.real < 0.0)
> > AttributeError: 'float' object has no attribute 'real'
> >
> > ======================================================================
> > ERROR: Failure: SyntaxError (invalid syntax (test_distributions.py, line
> 739))
> > ----------------------------------------------------------------------
> > Traceback (most recent call last):
> >  File
> "c:\python25\lib\site-packages\nose-1.1.2-py2.5.egg\nose\loader.py",
> > line 390, in loadTestsFromName
> >    addr.filename, addr.module)
> >  File
> "c:\python25\lib\site-packages\nose-1.1.2-py2.5.egg\nose\importer.py",
> > line 39, in importFromPath
> >    return self.importFromDir(dir_path, fqname)
> >  File
> "c:\python25\lib\site-packages\nose-1.1.2-py2.5.egg\nose\importer.py",
> > line 86, in importFromDir
> >    mod = load_module(part_fqname, fh, filename, desc)
> >  File
> "C:\Python25\lib\site-packages\scipy\stats\tests\test_distributions.py",
> > line 739
> >    x = stats.lognorm.rvs(*true, size=100)
> >                                    ^
> > SyntaxError: invalid syntax
>
> This one is my mistake, I only tested with python 2.7, and I get used
> to newer syntax.
>
> No problem, I missed it too. It looked like a trivial patch. Without a
buildbot this sort of thing is hard to avoid.

Ralf
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