Sage 8.0.beta4 released

[Volker Braun]

As always, you can get the latest beta version from the "develop" git branch. Alternatively, the self-contained source tarball is at http://www.sagemath.org/download-latest.html

7177ef5 Updated SageMath version to 8.0.beta4

cffd8ca Trac #10070: make heaviside and step play nicely together.

0aaa0fd Trac #22862: Invalid pointers in sympow on OpenSuSE

4b9abab Trac #22839: Patch python2 to increase FD_SETSIZE on Cygwin

9c0831c Trac #22838: Upgrade to Pynac-0.7.6

f1c06a5 Trac #22746: Update sage.lfunctions.dokchitser.Dokchitser to use only one gp interpreter

ffab656 Trac #20238: Move the Sage <-> PARI interface to a stand-alone package CyPari

6f0a31d Trac #22860: ticket #22840 causes breakage with some linkers when the order is important.

8553abb Trac #22644: Fix and test interact library

42c0fa2 Trac #22117: LatticePoset: Add certificate for is_distributive

b3aee2d Trac #18545: Some examples to plot() for posets.

fa8ec79 Trac #16086: Python 3 preparation: Py2 vs. Py3 return value of write() in doctests

aec9477 Trac #22810: Pari initialization segfaults in Cygwin since #22633

b248d03 Trac #22691: Upgrade cysignals

d77ed66 Trac #22795: Fixing a typo in error message within finite subgroups of modular abelian varieties

b6308c9 Trac #22837: zeromq: don't run self-tests in parallel

c1f8784 Trac #22835: molien series for finite matrix gap groups in char 0

8d16ba4 Trac #22215: Allow "sage -n jupyterlab"

9a4febf Trac #21843: Update the .cython_version format to include all cythonize options

33f91b5 Trac #21206: Add improved process shutdown code for PALPreader._iterate_list

f9ea9b8 Trac #22644: Fix and test interact library

f32d774 Trac #21889: add strongly regular  (216,40,4,8)- and (540,187,58,68)-graphs to the database of SRGs

3d51375 Trac #21045: Implement Zariski-VanKampen method to compute fundamental groups of complements of plane curves.

2f5a28f Updated SageMath version to 8.0.beta3

[Francois Bissey]

Not showing on github yet.

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[Volker Braun]

Now its there...

[Francois Bissey]

Thanks!

> On 28/04/2017, at 18:08, Volker Braun <vbrau...@gmail.com> wrote:
>
> Now its there...

[Ralf Stephan]

I get this but maybe I messed up myself somewhere when switching between debug yes/no:

gcc version 5.4.0 (GCC) 

****************************************************

NOTE: Set SAGE_MATPLOTLIB_GUI to anything but 'no' to try to build the Matplotlib GUI.

Not building any matplotlib graphical backends.

memory clobbered before allocated block

Error: could not determine package name

Error installing matplotlib package.

What could be the cause?

[Ralf Stephan]

Ah ok there is still a -lmcheck somewhere from debugging, sry

[Eric Gourgoulhon]

On Ubuntu 16.04 x86_64 Xeon E5-2623 + 16 GB RAM, from a fresh git clone + pull develop, parallel (-j16) build OK;  make ptestlong failed with the same error as for versions 8.0.beta2 and beta3:

File "src/sage/calculus/calculus.py", line 1406, in sage.calculus.calculus.laplace
Failed example:
    laplace(t^n, t, s, algorithm='giac')
Expected:
    Traceback (most recent call last):
    ...
    NotImplementedError: Unable to parse Giac output: integrate(t^n*exp(-s*t),t,0,+infinity)
Got:
    integration(t^n*e^(-s*t), t, 0, +Infinity)

[Justin C. Walker]

> On Apr 27, 2017, at 14:56 , Volker Braun <vbrau...@gmail.com> wrote:
>
> As always, you can get the latest beta version from the "develop" git branch. Alternatively, the self-contained source tarball is at http://www.sagemath.org/download-latest.html

Built from scratch on macOS 10.11.6 (Quad-core Core i7), using a cloned master/checked-out develop. Build completed w. no problems. Testing (‘ptestlong’) yielded one failure:
sage -t --long --warn-long 81.9 src/sage/graphs/matchpoly.pyx # Timed out

Running this test stand-alone had no failures. I reran the testing (moving the “logs” directory out of the way, to preserve forensic evidence), and all tests passed. “-jN” again, I suppose.

Justin

--
Justin C. Walker, Curmudgeon-At-Large
Director
Institute for the Enhancement of the Director's Income
--------
"Weaseling out of things is what separates us from the animals.
Well, except the weasel."
- Homer J Simpson
--------

[Emmanuel Charpentier]

On Debian testing runninng on Core I7 + 16 GB RAM, after fetching diffs over 8.0.beta3, I get three errors :

----------------------------------------------------------------------
sage -t --long src/sage/combinat/posets/posets.py  # 1 doctest failed
sage -t --long src/sage/calculus/calculus.py  # 1 doctest failed
sage -t --long src/sage/homology/simplicial_complex.py  # 1 doctest failed
----------------------------------------------------------------------

Details : the first one is new AFAIK, and seems genuine :

charpent@asus16-ec:/usr/local/sage-8$ sage -t --long src/sage/combinat/posets/posets.py
too many failed tests, not using stored timings
Running doctests with ID 2017-04-30-12-50-37-126fd53d.
Git branch: develop
Using --optional=database_gap,giacpy_sage,git_trac,mpir,python2,sage
Doctesting 1 file.
sage -t --long src/sage/combinat/posets/posets.py
**********************************************************************
File "src/sage/combinat/posets/posets.py", line 1742, in sage.combinat.posets.posets.FinitePoset.?
Failed example:
    L.plot(figsize=12, border=True, element_shape='s',
           element_size=400, element_color='white',
           element_colors={'blue': F, 'green': L.double_irreducibles()},
           cover_color='lightgray', cover_colors={'black': F_internal},
           title='The Frattini\nsublattice in blue', fontsize=10)
Exception raised:

    Traceback (most recent call last):

      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/doctest/forker.py", line 509, in _run
        self.compile_and_execute(example, compiler, test.globs)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/doctest/forker.py", line 872, in compile_and_execute
        exec(compiled, globs)
      File "<doctest sage.combinat.posets.posets.FinitePoset.?[12]>", line 5, in <module>
        title='The Frattini\nsublattice in blue', fontsize=Integer(10))
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/combinat/posets/posets.py", line 1834, in plot
        **kwds)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/misc/decorators.py", line 564, in wrapper
        return func(*args, **options)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/graphs/generic_graph.py", line 18733, in plot
        return self.graphplot(**options).plot()
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/graphs/generic_graph.py", line 18384, in graphplot
        return GraphPlot(graph=self, options=options)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/graphs/graph_plot.py", line 262, in __init__
        self.set_pos()
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/graphs/graph_plot.py", line 346, in set_pos
        self._pos = self._graph.layout(**self._options)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/graphs/generic_graph.py", line 17847, in layout
        pos = getattr(self, "layout_%s"%layout)(dim = dim, **options)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/graphs/digraph.py", line 2915, in layout_acyclic
        return self.layout_graphviz(rankdir=rankdir, **options)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/graphs/generic_graph.py", line 18315, in layout_graphviz
        positions = dot2tex.dot2tex(self.graphviz_string(**options), format = "positions", prog = prog)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/misc/decorators.py", line 564, in wrapper
        return func(*args, **options)
      File "/usr/local/sage-8/local/lib/python2.7/site-packages/sage/graphs/generic_graph.py", line 19532, in graphviz_string
        "%s is not a valid format for edge"%(edge)
    AssertionError: [0, 4] is not a valid format for edge
**********************************************************************
1 item had failures:
   1 of  37 in sage.combinat.posets.posets.FinitePoset.?
    [1222 tests, 1 failure, 8.61 s]
----------------------------------------------------------------------
sage -t --long src/sage/combinat/posets/posets.py  # 1 doctest failed
----------------------------------------------------------------------
Total time for all tests: 8.8 seconds
    cpu time: 8.1 seconds
    cumulative wall time: 8.6 seconds

The second one has already been reported more than once :

charpent@asus16-ec:/usr/local/sage-8$ sage -t --long src/sage/calculus/calculus.py
too many failed tests, not using stored timings
Running doctests with ID 2017-04-30-12-51-05-338d0836.
Git branch: develop
Using --optional=database_gap,giacpy_sage,git_trac,mpir,python2,sage
Doctesting 1 file.
sage -t --long src/sage/calculus/calculus.py
**********************************************************************

File "src/sage/calculus/calculus.py", line 1406, in sage.calculus.calculus.laplace
Failed example:
    laplace(t^n, t, s, algorithm='giac')
Expected:
    Traceback (most recent call last):
    ...
    NotImplementedError: Unable to parse Giac output: integrate(t^n*exp(-s*t),t,0,+infinity)
Got:
    integration(t^n*e^(-s*t), t, 0, +Infinity)

**********************************************************************
1 item had failures:
   1 of  39 in sage.calculus.calculus.laplace
    [419 tests, 1 failure, 9.85 s]
----------------------------------------------------------------------
sage -t --long src/sage/calculus/calculus.py  # 1 doctest failed
----------------------------------------------------------------------
Total time for all tests: 9.9 seconds
    cpu time: 9.3 seconds
    cumulative wall time: 9.9 seconds

The third one is transient, i. e. passes when run standalone.

HTH,

--
Emmanuel Charpentier

[tsc...@ucdavis.edu]

Another developer and I are also getting the failure in combinat/posets/posets.py.

Best,
Travis

[Steven Trogdon]

The posets.py test fails here on my Gentoo machine with sage-on-gentoo installed, but with vanilla Sage on the same machine the test passes.

On Sunday, April 30, 2017 at 5:59:55 AM UTC-5, Emmanuel Charpentier wrote:

[Francois Bissey]

And it doesn’t on my sage-on-gentoo install. I notice that graphviz
is involved in the traceback and I don’t have graphviz installed currently.
Would all the people with the failing test happen to have graphviz?
And the one who don’t, not?

François

[Emmanuel Charpentier]

I have the problem and I do have graphviz installed (Debian package 2.28.0-17).

--
Emmanuel Charpentier

[Steven Trogdon]

I have system graphviz installed. Removing it allowed the posets.py test to pass on sage-on-gentoo. Of course having and not having graphviz installed has no effect on testing posets.py from vanilla Sage. The test always passes. If graphviz is the source then it seems odd that system graphviz is only affecting the test on debian.

[tsc...@ucdavis.edu]

I have graphviz installed as well. It does seem odd that graphviz would be the problem. My thought is more of that the DiGraph constructor is getting confused about the input. We might have to specify the input data to the DiGraph.

Best,
Travis

[Steven Trogdon]

On gentoo the real issue is with dot2tex which pulls in graphviz and pydot. I noticed that dot2tex is an optional Sage package. Could this be the issue?

[Steven Trogdon]

The sage -t --long src/sage/combinat/posets/posets.py failure is now https://trac.sagemath.org/ticket/22950

On Sunday, April 30, 2017 at 5:59:55 AM UTC-5, Emmanuel Charpentier wrote:

[Justin C. Walker]

On Apr 27, 2017, at 14:56 , Volker Braun wrote:

> As always, you can get the latest beta version from the "develop" git
> branch. Alternatively, the self-contained source tarball is at
> http://www.sagemath.org/download-latest.html

Built from a clone of <git://github.com/sagemath/sage.git> (followed by a checkout of "develop").
No problems with the build, and all tests ('ptestlong') passed!

Justin

--
Justin C. Walker, Curmudgeon-At-Large

Institute for the Enhancement of the Director's Income
--------

Experience is what you get
when you don't get what you want.
--------