[sage-release] Re: Sage 8.1.rc0 released

[John H Palmieri]

 
On Friday, November 17, 2017 at 10:40:22 AM UTC-8, Simon King wrote:
>
> Hi John, 
>
> On 2017-11-17, John H Palmieri  wrote: 
> >> And WHY that change was made! 
> >> 
> > 
> > If it takes a while to build the documentation, better to start as soon 
> as 
> > possible, rather than to wait until the last possible time, right? 
>
> If the user's purpose is to use Sage, better make it usable as soon as 
> possible. 
>
> Moreover: Have the for-years-frequently-occurring "sporadic" doc build 
> failures been fixed at last? Otherwise: Better build as soon as possible 
> what does reliably build (i.e., sage/src), rather than frustrating the 
> user. 
>
> Best regards, 
> Simon 
>
>
For the first paragraph, we have to deal with the definition of "usable". 
The philosophy for some time has been that Sage without documentation is 
not fully usable. (Plus having the documentation build in parallel with 
some Sage packages may not slow down the build of 
Sage-minus-the-documentation that much. I don't really know.)

For the second paragraph, there has been some progress made, yes. Also, 
there is the question of to what extent the default build process should be 
tailored toward developers, who are more likely to run into problems with 
the documentation (because the problems have occurred in the past when 
changing branches, for example), vs. toward users who are not developers. 
My opinion is that developers should come low on the priority list; we can 
always use "make build" to skip the documentation build, if we want, or use 
"make doc-html-no-plot" to skip the plots (which can take a while), etc. 
For users who are not developers, having the Sage build process end (fully, 
including the documentation) more quickly is better.

  John

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[sage-release] Re: Sage 8.1.rc0 released

[Simon King]

Hi John,

On 2017-11-17, John H Palmieri  wrote:
>> And WHY that change was made! 
>>
>
> If it takes a while to build the documentation, better to start as soon as 
> possible, rather than to wait until the last possible time, right?

If the user's purpose is to use Sage, better make it usable as soon as
possible.

Moreover: Have the for-years-frequently-occurring "sporadic" doc build
failures been fixed at last? Otherwise: Better build as soon as possible
what does reliably build (i.e., sage/src), rather than frustrating the user.

Best regards,
Simon

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Jeroen Demeyer]

On 2017-11-17 14:51, Kwankyu Lee wrote:

This (building the documentation is no longer
the last step) sounds a big change to me. I wonder when that change was
made.


In Sage 6.8, see https://trac.sagemath.org/ticket/18710

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[sage-release] Re: Sage 8.1.rc0 released

[John H Palmieri]

On Friday, November 17, 2017 at 6:37:54 AM UTC-8, Simon King wrote:
>
> On 2017-11-17, Kwankyu Lee  wrote: 
> > Ah, I didn't know that. This (building the documentation is no longer 
> the 
> > last step) sounds a big change to me. I wonder when that change was 
> made. 
>
> And WHY that change was made! 
>

If it takes a while to build the documentation, better to start as soon as 
possible, rather than to wait until the last possible time, right?


 

>
> Is it still possible to build SageMath without documentation ("make 
> start")? 
>
> Cheers, 
> Simon 
>
>

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[sage-release] Re: Sage 8.1.rc0 released

[Simon King]

On 2017-11-17, Thierry  wrote:
> On Fri, Nov 17, 2017 at 02:37:37PM +, Simon King wrote:
>
>> Is it still possible to build SageMath without documentation ("make start")?
>
>   make build

Thanks!


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Re: [sage-release] Re: Sage 8.1.rc0 released

[Thierry]

On Fri, Nov 17, 2017 at 02:37:37PM +, Simon King wrote:

> Is it still possible to build SageMath without documentation ("make start")?

make build

Ciao,
Thierry

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Eric Gourgoulhon]

Hi, 

Le vendredi 17 novembre 2017 15:15:13 UTC+1, Kwankyu Lee a écrit :
>
>
> Is this normal situation? This betrays my belief that a command like
>
> $ sage -t src/sage/rings/finite_rings/*
>
> always works fine.
>
>
You should use instead 
sage -t src/sage/rings/finite_rings/
(skip the *)

Best wishes,

Eric. 

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Kwankyu Lee]

I noticed this:

$ sage -t src/sage/rings/finite_rings/*
Running doctests with ID 2017-11-17-23-04-49-f065787a.
Git branch: finite_field_extension_trac24195_dev
Using --optional=mpir,python2,sage
Traceback (most recent call last):
  File "/Users/Kwankyu/GitHub/sage/src/bin/sage-runtests", line 125, in 

err = DC.run()
  File 
"/Users/Kwankyu/GitHub/sage/local/lib/python2.7/site-packages/sage/doctest/control.py",
 
line 1141, in run
self.expand_files_into_sources()
  File 
"/Users/Kwankyu/GitHub/sage/local/lib/python2.7/site-packages/sage/doctest/control.py",
 
line 751, in expand_files_into_sources
self.sources = [FileDocTestSource(path, self.options) for path in 
expand()]
  File 
"/Users/Kwankyu/GitHub/sage/local/lib/python2.7/site-packages/sage/doctest/sources.py",
 
line 525, in __init__
raise ValueError("unknown file extension %r"%ext)
ValueError: unknown file extension '.h'
$

The problematic file is

$ ls -l src/sage/rings/finite_rings/*.h
-rw-r--r--  1 Kwankyu  staff  311 Nov 17 10:13 
src/sage/rings/finite_rings/integer_mod_limits.h
$ 

Is this normal situation? This betrays my belief that a command like

$ sage -t src/sage/rings/finite_rings/*

always works fine.

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Kwankyu Lee]

On Friday, November 17, 2017 at 6:53:41 PM UTC+9, Thierry wrote:
>
>
> How much available RAM do you have ? Building the documentation is no 
> longer the last step, hence if that fails, everything after that is not 
> built. 


Ah, I didn't know that. This (building the documentation is no longer the 
last step) sounds a big change to me. I wonder when that change was made.
 

> If you do not have enough RAM to build the doc, you can compile the 
> rest of Sage with: 
>
> make build 


It is Mac Pro with 32GB RAM. I never suspected that  the Sage build on the 
machine could fail because of not enough RAM. 

Ok. Thank you guys for enlightening me :-)


Kwankyu
 

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Thierry]

Hi,

On Thu, Nov 16, 2017 at 05:05:11PM -0800, Kwankyu Lee wrote:
[...]
> There was an error in building doc. I ignored this as there was no problem 
> in running Sage.
>  

How much available RAM do you have ? Builging the documentation is no
longer the last step, hence if that fails, everything after that is not
built. If you do not have enough RAM to build the doc, you can compile the
rest of Sage with:

make build

Ciao,
Thierry




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Re: [sage-release] Re: Sage 8.1.rc0 released

[Jeroen Demeyer]

On 2017-11-17 02:05, Kwankyu Lee wrote:

There was an error in building doc.


There you have it! The build didn't succeed.

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Dima Pasechnik]

It might be that a dependency is missing somewhere. While building rc1, I had 
to start make for the 2nd time for no apparent reason.

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Kwankyu Lee]

On Thursday, November 16, 2017 at 8:38:52 PM UTC+9, Jeroen Demeyer wrote:
>
>
> It seems that sympy simply wasn't built. I am not aware of any bug in 
> the build system (especially not specific to OS X) which could cause that. 
>

The fresh build (of actually Sage 8.1rc1) finished with no problem. Also 
the strange behaviour reported above does not appear with the fresh Sage.

Perhaps my previous Sage installation was somehow corrupted. I don't know 
why...

Sorry for the noise. Thank you! 

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Kwankyu Lee]

>
> Sorry to ask a silly question, but are you sure that 
>
> (1) You actually ran "make" 
>

Yes. But this was not a fresh one. I ran "make distclean", and then "make".
 

> (2) That run of "make" succeeded without errors 
>

There was an error in building doc. I ignored this as there was no problem 
in running Sage.
 

> It seems that sympy simply wasn't built. I am not aware of any bug in 
> the build system (especially not specific to OS X) which could cause that. 
>

Ok. Then I will try a fresh build from source, and report the result. Thank 
you for your attention.

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Jeroen Demeyer]

On 2017-11-16 07:38, Kwankyu Lee wrote:

I get the following just after "make",


Sorry to ask a silly question, but are you sure that

(1) You actually ran "make"
(2) That run of "make" succeeded without errors

It seems that sympy simply wasn't built. I am not aware of any bug in 
the build system (especially not specific to OS X) which could cause that.


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Re: [sage-release] Re: Sage 8.1.rc0 released

[Kwankyu Lee]

Then I created a new directory at SAGE_ROOT/src/ext/directory and put a 
file "test.txt" 

$ ls -l src/ext/
total 0
drwxr-xr-x  3 Kwankyu  staff  102 Nov 16 15:42 directory
drwxr-xr-x  4 Kwankyu  staff  136 Apr 15  2015 doctest
drwxr-xr-x  5 Kwankyu  staff  170 Apr 14  2016 gap
drwxr-xr-x  3 Kwankyu  staff  102 Mar  4  2016 graphs
drwxr-xr-x  7 Kwankyu  staff  238 Jun 11  2015 images
drwxr-xr-x  7 Kwankyu  staff  238 Jul 26 23:26 kenzo
drwxr-xr-x  5 Kwankyu  staff  170 Jun 11  2015 magma
drwxr-xr-x  3 Kwankyu  staff  102 Jun 11  2015 mwrank
drwxr-xr-x  4 Kwankyu  staff  136 Jun 11  2015 notebook-ipython
drwxr-xr-x  5 Kwankyu  staff  170 Apr 15  2015 pari
drwxr-xr-x  3 Kwankyu  staff  102 Jun 11  2015 pickle_jar
drwxr-xr-x  3 Kwankyu  staff  102 Jul 26 23:26 threejs
drwxr-xr-x  5 Kwankyu  staff  170 Apr 13  2016 valgrind
$

and then I ran

$ sage -br 

and I expected the new directory "directory" is created at 
"local/share/sage/ext/", but I get:

$ ls -l local/share/sage/ext/
total 0
drwxr-xr-x  4 Kwankyu  staff  136 Nov 15 19:19 doctest
drwxr-xr-x  5 Kwankyu  staff  170 Nov 15 19:19 gap
drwxr-xr-x  3 Kwankyu  staff  102 Nov 15 19:19 graphs
drwxr-xr-x  7 Kwankyu  staff  238 Nov 15 19:19 images
drwxr-xr-x  7 Kwankyu  staff  238 Nov 15 19:19 kenzo
drwxr-xr-x  5 Kwankyu  staff  170 Nov 15 19:19 magma
drwxr-xr-x  3 Kwankyu  staff  102 Nov 15 19:19 mwrank
drwxr-xr-x  4 Kwankyu  staff  136 Nov 15 19:19 notebook-ipython
drwxr-xr-x  5 Kwankyu  staff  170 Nov 15 19:19 pari
drwxr-xr-x  3 Kwankyu  staff  102 Nov 15 19:19 pickle_jar
drwxr-xr-x  3 Kwankyu  staff  102 Nov 15 19:19 threejs
drwxr-xr-x  7 Kwankyu  staff  238 Nov 15 19:19 valgrind
$

According to the developer guide,

Non-Python Sage source code and supporting files should be placed in 
appropriate subdirectories of SAGE_ROOT/src/ext/. They will then be 
automatically copied to the corresponding subdirectories of 
SAGE_ROOT/local/share/sage/ext/ during the build process and can be 
accessed at runtime using SAGE_EXTCODE. 

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Kwankyu Lee]

So I ran

sage -i sympy

and Sage installed sympy. Then now this works fine.

$ sage -t src/sage/rings/function_field/*

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Kwankyu Lee]

I get the following just after "make",

Hera:sage$ sage -t src/sage/rings/function_field/*
Running doctests with ID 2017-11-16-15-36-55-9cd5f354.
Git branch: develop
Using --optional=mpir,python2,sage
Doctesting 8 files.
Traceback (most recent call last):
  File "/Users/Kwankyu/GitHub/sage/src/bin/sage-runtests", line 125, in 

err = DC.run()
  File 
"/Users/Kwankyu/GitHub/sage/local/lib/python2.7/site-packages/sage/doctest/control.py",
 
line 1144, in run
self.run_doctests()
  File 
"/Users/Kwankyu/GitHub/sage/local/lib/python2.7/site-packages/sage/doctest/control.py",
 
line 867, in run_doctests
self.dispatcher = DocTestDispatcher(self)
  File 
"/Users/Kwankyu/GitHub/sage/local/lib/python2.7/site-packages/sage/doctest/forker.py",
 
line 1403, in __init__
init_sage()
  File 
"/Users/Kwankyu/GitHub/sage/local/lib/python2.7/site-packages/sage/doctest/forker.py",
 
line 134, in init_sage
from sympy.printing.pretty.stringpict import stringPict
ImportError: No module named sympy.printing.pretty.stringpict
Hera:sage$

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Re: [sage-release] Re: Sage 8.1.rc0 released

[François Bissey]

Define strange behaviours?

> On 16/11/2017, at 18:52, Kwankyu Lee  wrote:
> 
> Hi, 
> 
> Does this release support Xcode 9.1 on mac?
> 
> I built this release with Xcode 9.1, and the Sage built shows strange 
> behaviors. Is this because of Xcode 9.1?

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[sage-release] Re: Sage 8.1.rc0 released

[Kwankyu Lee]

Hi, 

Does this release support Xcode 9.1 on mac?

I built this release with Xcode 9.1, and the Sage built shows strange 
behaviors. Is this because of Xcode 9.1?

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[sage-release] Re: Sage 8.1.rc0 released

[Eric Gourgoulhon]

Le vendredi 10 novembre 2017 14:42:44 UTC+1, Eric Gourgoulhon a écrit :
>
> On the same computer as above (Ubuntu 16/04),
> ./sage -n
> fails with the following error message:
>
> [C 14:35:42.400 NotebookApp] Bad config encountered during initialization:
> [C 14:35:42.400 NotebookApp] The 'nbserver_extensions' trait of a 
> NotebookApp instance must be a dict, but a value of type 'list' (i.e. 
> ['sagenb_export.nbextension']) was specified.
>

Confirmed on another computer (still running Ubuntu 16.04 though). So I 
opened the ticket
https://trac.sagemath.org/ticket/24198
and set it to "blocker".

Eric.

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Re: [sage-release] Re: Sage 8.1.rc0 released

[Maarten Derickx]

I created https://trac.sagemath.org/ticket/24190 for the issue.

On Friday, 10 November 2017 13:34:53 UTC+1, Volker Braun wrote:
>
> Can somebody open a ticket for that issue?
>
> On Thursday, November 9, 2017 at 11:44:43 PM UTC+1, François Bissey wrote:
>>
>> Smells like https://trac.sagemath.org/ticket/23742 
>>
>> > On 10/11/2017, at 11:31, John H Palmieri  wrote: 
>> > 
>> > WIth OS X 10.12.6, Xcode (and the same happens when building with 
>> clang, #12426): 
>> > 
>> > sage -t --long --warn-long 64.0 src/sage/matrix/matrix_mod2_dense.pyx 
>>  # Killed due to kill signal 
>> > 
>> > ** 
>> > Tests run before process (pid=12556) failed: 
>> > sage: a = matrix(GF(2),3,range(9),sparse=False); a ## line 8 ## 
>> > [0 1 0] 
>> > [1 0 1] 
>> > [0 1 0] 
>> > sage: a.rank() ## line 12 ## 
>> > 2 
>> > sage: type(a) ## line 14 ## 
>> >  
>> > sage: a[0,0] = 1 ## line 16 ## 
>> > sage: a.rank() ## line 17 ## 
>> > 3 
>> > sage: parent(a) ## line 19 ## 
>> > Full MatrixSpace of 3 by 3 dense matrices over Finite Field of size 2 
>> > sage: a^2 ## line 22 ## 
>> > [0 1 1] 
>> > [1 0 0] 
>> > [1 0 1] 
>> > sage: a+a ## line 26 ## 
>> > [0 0 0] 
>> > [0 0 0] 
>> > [0 0 0] 
>> > sage: b = a.new_matrix(2,3,range(6)); b ## line 31 ## 
>> > [0 1 0] 
>> > [1 0 1] 
>> > sage: a*b ## line 35 ## 
>> > sage: b*a ## line 39 ## 
>> > [1 0 1] 
>> > [1 0 0] 
>> > sage: TestSuite(a).run() ## line 43 ## 
>> > sage: TestSuite(b).run() ## line 44 ## 
>> > sage: a.echelonize(); a ## line 46 ## 
>> > [1 0 0] 
>> > [0 1 0] 
>> > [0 0 1] 
>> > sage: b.echelonize(); b ## line 50 ## 
>> > [1 0 1] 
>> > [0 1 0] 
>> > sage: FF = FiniteField(2) ## line 56 ## 
>> > sage: V = VectorSpace(FF,2) ## line 57 ## 
>> > sage: v = V([0,1]); v ## line 58 ## 
>> > (0, 1) 
>> > sage: W = V.subspace([v]) ## line 60 ## 
>> > sage: W ## line 61 ## 
>> > Vector space of degree 2 and dimension 1 over Finite Field of size 2 
>> > Basis matrix: 
>> > [0 1] 
>> > sage: v in W ## line 65 ## 
>> > True 
>> > sage: M = Matrix(GF(2), [[1,1,0],[0,1,0]]) ## line 68 ## 
>> > sage: M.row_space() ## line 69 ## 
>> > Vector space of degree 3 and dimension 2 over Finite Field of size 2 
>> > Basis matrix: 
>> > [1 0 0] 
>> > [0 1 0] 
>> > sage: M = Matrix(GF(2), [[1,1,0],[0,0,1]]) ## line 75 ## 
>> > sage: M.row_space() ## line 76 ## 
>> > Vector space of degree 3 and dimension 2 over Finite Field of size 2 
>> > Basis matrix: 
>> > [1 1 0] 
>> > [0 0 1] 
>> > sage: sig_on_count() # check sig_on/off pairings (virtual doctest) ## 
>> line 90 ## 
>> > 0 
>> > sage: type(random_matrix(GF(2),2,2)) ## line 165 ## 
>> >  
>> > sage: Matrix(GF(2),3,3,1) # indirect doctest ## line 168 ## 
>> > [1 0 0] 
>> > [0 1 0] 
>> > [0 0 1] 
>> > sage: matrix(GF(2),0,[]) * vector(GF(2),0,[]) ## line 177 ## 
>> > () 
>> > sage: MatrixSpace(GF(2), 2^30)(1) ## line 182 ## 
>>
>>

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[sage-release] Re: Sage 8.1.rc0 released

[Eric Gourgoulhon]

On the same computer as above (Ubuntu 16/04),
./sage -n
as well as any of the equivalent commands
./sage --notebook 
./sage -n export 
./sage --notebook export

fails with the following error message:

[C 14:35:42.400 NotebookApp] Bad config encountered during initialization:
[C 14:35:42.400 NotebookApp] The 'nbserver_extensions' trait of a 
NotebookApp instance must be a dict, but a value of type 'list' (i.e. 
['sagenb_export.nbextension']) was specified.

On the same machine, it is OK for Sage 8.1beta8 and all previous betas. 
Moreover 
./sage -n jupyter
./sage -n sagenb
both work perfectly with 8.1.rc0.

Eric.

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[sage-release] Re: Sage 8.1.rc0 released

[Maarten Derickx]

Scipy fails to build on the sage4 patchbot  (4.4.26-gentoo). Relevant part 
of the log:

[scipy-0.19.1] getarrdims:warning: assumed shape array, using 0 instead of 
'*'
[scipy-0.19.1] getarrdims:warning: assumed shape array, using 0 instead of 
'*'
[scipy-0.19.1]x,y = 
zrot(x,y,c,s,[n,offx,incx,offy,incy,overwrite_x,overwrite_y])
[scipy-0.19.1]  Constructing wrapper function "ilaver"...
[scipy-0.19.1]major,minor,patch = ilaver()
[scipy-0.19.1]  Wrote C/API module "_flapack" to file 
"build/src.linux-x86_64-2.7/build/src.linux-x86_64-2.7/scipy/linalg/_flapackmodule.c"
[scipy-0.19.1]  Fortran 77 wrappers are saved to 
"build/src.linux-x86_64-2.7/build/src.linux-x86_64-2.7/scipy/linalg/_flapack-f2pywrappers.f"
[scipy-0.19.1]   adding 
'build/src.linux-x86_64-2.7/build/src.linux-x86_64-2.7/build/src.linux-x86_64-2.7/scipy/linalg/fortranobject.c'
 to sources.
[scipy-0.19.1]   adding 
'build/src.linux-x86_64-2.7/build/src.linux-x86_64-2.7/build/src.linux-x86_64-2.7/scipy/linalg'
 to include_dirs.
[scipy-0.19.1]   adding 
'build/src.linux-x86_64-2.7/build/src.linux-x86_64-2.7/scipy/linalg/_flapack-f2pywrappers.f'
 to sources.
[scipy-0.19.1] building extension "scipy.linalg._flinalg" sources
[scipy-0.19.1] f2py options: []
[scipy-0.19.1] f2py:> 
build/src.linux-x86_64-2.7/scipy/linalg/_flinalgmodule.c
[scipy-0.19.1] IOError: [Errno 2] No such file or directory: 
'scipy/linalg/src/det.f'. Skipping file "scipy/linalg/src/det.f".
[scipy-0.19.1] IOError: [Errno 2] No such file or directory: 
'scipy/linalg/src/lu.f'. Skipping file "scipy/linalg/src/lu.f".
[scipy-0.19.1] Reading fortran codes...
[scipy-0.19.1] Post-processing...
[scipy-0.19.1] Post-processing (stage 2)...
[scipy-0.19.1] Building modules...
[scipy-0.19.1] error: f2py target file 
'build/src.linux-x86_64-2.7/scipy/linalg/_flinalgmodule.c' not generated
[scipy-0.19.1] Running setup.py install for scipy: finished with status 
'error


I created https://trac.sagemath.org/ticket/24187#ticket for this.

On Wednesday, 8 November 2017 22:30:44 UTC+1, 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
>
> b707ce9348 (tag: 8.1.rc0, trac/develop) Updated SageMath version to 8.1.rc0
> 0542f0a7fb Trac #19517: Graphs: canonical_label() and several errors
> c73b0be317 Trac #24143: zeromq: don't use -Werror
> 06dbe2327a Trac #24154: Fix equation handling of 
> Polyhedron.to_linear_program() and thus 
> integral_points_count(preprocess=True)
> 23c060c581 Trac #24062: Upgrade to SymPy-1.1.1
> a89800b2e0 Trac #16801: Conversion of psi(x,y) to/from SymPy
> dc9be1b424 Trac #20204: Fix problems with constructing or converting to 
> SymPy expressions
> 8ad8826519 Trac #23954: Mass change of docstring: from "-" to "--", 
> variables with underscores
> 82666c4788 Trac #24095: Part 2, "Posets.*" to "posets.*"
> 780f69dd4d Trac #24076: Pep8-compliance, lattices.py as an example
> e33beaf80a Trac #24069: let our required header be pep8 compliant
> ca925431c8 Trac #24048: Unify selfdual and self_dual
> 071c1bf918 Trac #18536: Solvers for constant sum games
> 5c90df6193 Trac #24133: py3 : get rid of im_func again
> 13d7a570cb Trac #24132: py3: some care for items() and values()
> 3897c7f864 Trac #24126: py3: some more care for keys()[...]
> 63273442d6 Trac #24119: Create an assuming() context manager
> 701897ecc3 Trac #24114: prefer list(K) over K.list() for syndrom decoder
> 4d82659aaa Trac #24104: Merge the code of ex.solve(...) and solve(...)
> 004a326306 Trac #23991: Update curl to 7.56.1
> 4ddb4717bd Trac #23787: py3: richcmp for ideals
> b78794f137 Trac #23112: Repair math-readline script for interactive use, 
> mathematica_console and make Mathematica pexpect work without helper script
> c59a1adb5b Trac #20439: eigenmatrix_right gives the conjugate of what it 
> should
> a181bc24e8 Trac #24081: Use system curl if possible
> 4398274f52 Trac #24061: Slightly faster test for semiorder
> 7c6371b16d Trac #11541: Add example with solution_dict and substituting in 
> a matrix
> 9d1fdaa3c0 Trac #24127: py3: adding hash for complex fields
> 7ec526c44c Trac #24124: lazy import hecke algebras
> 75e5ef97f6 Trac #24120: Implement the q-Pochhammer symbol
> 20f0073693 Trac #24116: Fix Cython warnings in finite_rings
> 9896ca2282 Trac #24113: Add test for cactus graph
> 326106ee54 Trac #24110: Upgrade to Cython 0.27.2
> 7b3992b637 Trac #24109: Always enable debug.bad_parent_warnings
> 02cebd0016 Trac #24105: Deprecate Sage-specific Cython pragmas like #clib
> e738d859cb Trac #24103: Remove a lot of deprecated code
> b8686f64dd Trac #24026: Upgrade R to 3.4.2
> 75506c95b1 Trac #23982: perfect matchings and containment
> a62930e0e7 Trac #23919: Sage library: standardize on C99 and C++11
> c646a6d7a7 Trac 

Re: [sage-release] Re: Sage 8.1.rc0 released

[Volker Braun]

Can somebody open a ticket for that issue?

On Thursday, November 9, 2017 at 11:44:43 PM UTC+1, François Bissey wrote:
>
> Smells like https://trac.sagemath.org/ticket/23742 
>
> > On 10/11/2017, at 11:31, John H Palmieri  > wrote: 
> > 
> > WIth OS X 10.12.6, Xcode (and the same happens when building with clang, 
> #12426): 
> > 
> > sage -t --long --warn-long 64.0 src/sage/matrix/matrix_mod2_dense.pyx  # 
> Killed due to kill signal 
> > 
> > ** 
> > Tests run before process (pid=12556) failed: 
> > sage: a = matrix(GF(2),3,range(9),sparse=False); a ## line 8 ## 
> > [0 1 0] 
> > [1 0 1] 
> > [0 1 0] 
> > sage: a.rank() ## line 12 ## 
> > 2 
> > sage: type(a) ## line 14 ## 
> >  
> > sage: a[0,0] = 1 ## line 16 ## 
> > sage: a.rank() ## line 17 ## 
> > 3 
> > sage: parent(a) ## line 19 ## 
> > Full MatrixSpace of 3 by 3 dense matrices over Finite Field of size 2 
> > sage: a^2 ## line 22 ## 
> > [0 1 1] 
> > [1 0 0] 
> > [1 0 1] 
> > sage: a+a ## line 26 ## 
> > [0 0 0] 
> > [0 0 0] 
> > [0 0 0] 
> > sage: b = a.new_matrix(2,3,range(6)); b ## line 31 ## 
> > [0 1 0] 
> > [1 0 1] 
> > sage: a*b ## line 35 ## 
> > sage: b*a ## line 39 ## 
> > [1 0 1] 
> > [1 0 0] 
> > sage: TestSuite(a).run() ## line 43 ## 
> > sage: TestSuite(b).run() ## line 44 ## 
> > sage: a.echelonize(); a ## line 46 ## 
> > [1 0 0] 
> > [0 1 0] 
> > [0 0 1] 
> > sage: b.echelonize(); b ## line 50 ## 
> > [1 0 1] 
> > [0 1 0] 
> > sage: FF = FiniteField(2) ## line 56 ## 
> > sage: V = VectorSpace(FF,2) ## line 57 ## 
> > sage: v = V([0,1]); v ## line 58 ## 
> > (0, 1) 
> > sage: W = V.subspace([v]) ## line 60 ## 
> > sage: W ## line 61 ## 
> > Vector space of degree 2 and dimension 1 over Finite Field of size 2 
> > Basis matrix: 
> > [0 1] 
> > sage: v in W ## line 65 ## 
> > True 
> > sage: M = Matrix(GF(2), [[1,1,0],[0,1,0]]) ## line 68 ## 
> > sage: M.row_space() ## line 69 ## 
> > Vector space of degree 3 and dimension 2 over Finite Field of size 2 
> > Basis matrix: 
> > [1 0 0] 
> > [0 1 0] 
> > sage: M = Matrix(GF(2), [[1,1,0],[0,0,1]]) ## line 75 ## 
> > sage: M.row_space() ## line 76 ## 
> > Vector space of degree 3 and dimension 2 over Finite Field of size 2 
> > Basis matrix: 
> > [1 1 0] 
> > [0 0 1] 
> > sage: sig_on_count() # check sig_on/off pairings (virtual doctest) ## 
> line 90 ## 
> > 0 
> > sage: type(random_matrix(GF(2),2,2)) ## line 165 ## 
> >  
> > sage: Matrix(GF(2),3,3,1) # indirect doctest ## line 168 ## 
> > [1 0 0] 
> > [0 1 0] 
> > [0 0 1] 
> > sage: matrix(GF(2),0,[]) * vector(GF(2),0,[]) ## line 177 ## 
> > () 
> > sage: MatrixSpace(GF(2), 2^30)(1) ## line 182 ## 
>
>

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[sage-release] Re: Sage 8.1.rc0 released

[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 and ptestlong failed with one 
doctest:

sage -t --long --warn-long 45.7 
src/sage/geometry/riemannian_manifolds/surface3d_generators.py  # 1 doctest 
failed

As usual on this computer since a few betas, this is due to the failure of 
Jmol to create some file in ~/.sage/temp/  . But the doctest is passed when 
run standalone. 

Best wishes,

Eric.

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[sage-release] Re: Sage 8.1.rc0 released

[Emmanuel Charpentier]

On Debian testing 8.1.rc0 + Trac#24121 
 in its current state passes 
ptestlong without error whatsoever.

HTH,

--
Emmanuel Charpentier

Le mercredi 8 novembre 2017 22:30:44 UTC+1, Volker Braun a écrit :
>
> 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
>
> b707ce9348 (tag: 8.1.rc0, trac/develop) Updated SageMath version to 8.1.rc0
> 0542f0a7fb Trac #19517: Graphs: canonical_label() and several errors
> c73b0be317 Trac #24143: zeromq: don't use -Werror
> 06dbe2327a Trac #24154: Fix equation handling of 
> Polyhedron.to_linear_program() and thus 
> integral_points_count(preprocess=True)
> 23c060c581 Trac #24062: Upgrade to SymPy-1.1.1
> a89800b2e0 Trac #16801: Conversion of psi(x,y) to/from SymPy
> dc9be1b424 Trac #20204: Fix problems with constructing or converting to 
> SymPy expressions
> 8ad8826519 Trac #23954: Mass change of docstring: from "-" to "--", 
> variables with underscores
> 82666c4788 Trac #24095: Part 2, "Posets.*" to "posets.*"
> 780f69dd4d Trac #24076: Pep8-compliance, lattices.py as an example
> e33beaf80a Trac #24069: let our required header be pep8 compliant
> ca925431c8 Trac #24048: Unify selfdual and self_dual
> 071c1bf918 Trac #18536: Solvers for constant sum games
> 5c90df6193 Trac #24133: py3 : get rid of im_func again
> 13d7a570cb Trac #24132: py3: some care for items() and values()
> 3897c7f864 Trac #24126: py3: some more care for keys()[...]
> 63273442d6 Trac #24119: Create an assuming() context manager
> 701897ecc3 Trac #24114: prefer list(K) over K.list() for syndrom decoder
> 4d82659aaa Trac #24104: Merge the code of ex.solve(...) and solve(...)
> 004a326306 Trac #23991: Update curl to 7.56.1
> 4ddb4717bd Trac #23787: py3: richcmp for ideals
> b78794f137 Trac #23112: Repair math-readline script for interactive use, 
> mathematica_console and make Mathematica pexpect work without helper script
> c59a1adb5b Trac #20439: eigenmatrix_right gives the conjugate of what it 
> should
> a181bc24e8 Trac #24081: Use system curl if possible
> 4398274f52 Trac #24061: Slightly faster test for semiorder
> 7c6371b16d Trac #11541: Add example with solution_dict and substituting in 
> a matrix
> 9d1fdaa3c0 Trac #24127: py3: adding hash for complex fields
> 7ec526c44c Trac #24124: lazy import hecke algebras
> 75e5ef97f6 Trac #24120: Implement the q-Pochhammer symbol
> 20f0073693 Trac #24116: Fix Cython warnings in finite_rings
> 9896ca2282 Trac #24113: Add test for cactus graph
> 326106ee54 Trac #24110: Upgrade to Cython 0.27.2
> 7b3992b637 Trac #24109: Always enable debug.bad_parent_warnings
> 02cebd0016 Trac #24105: Deprecate Sage-specific Cython pragmas like #clib
> e738d859cb Trac #24103: Remove a lot of deprecated code
> b8686f64dd Trac #24026: Upgrade R to 3.4.2
> 75506c95b1 Trac #23982: perfect matchings and containment
> a62930e0e7 Trac #23919: Sage library: standardize on C99 and C++11
> c646a6d7a7 Trac #22566: SymPy's ceiling() is not translated to Sage
> 79be5d5a7b Trac #24099: Use PPL by default for Fractional Chromatic Index
> 6c101056ac Trac #24017: Add sdh_die helper function--report an error 
> message and exit
> acdd015032 Trac #23923: Interface cases function with SymPy's piecewise
> 0d0a98582f Trac #23830: Add SBox Instance: DBlock cipher
> 72ccc417e4 Trac #23804: gap_eval: move libgap_enter() inside sig_on()
> d0950542cf Trac #21303: Make hecke operators not blow up the memory
> 1df89a43aa Trac #10950: The hash function for matrices suffers from many 
> collisions
> 10d2434878 Trac #24097: Broken paths in cython()'d modules
> 2b602e263f Trac #24090: Clean up matrix hashing
> ac85d0d147 Trac #24068: py3: some care for .values()[...]
> 1493886987 Trac #24029: Force -std=gnu++11 for Linbox
> a9dc63f072 Trac #24021: Checking if a graph is cograph
> 0ee8241017 Trac #24006: SymPy --> Sage conversion completely inside Sage
> 8785904f43 Trac #23967: Coercion pushout for FGP_modules
> d396f15a96 Trac #23939: Link from IntegerVectors documentation to 
> IntegerListsLex documentation
> 7138bd107c Trac #23861: Doctest: Make Expression normalization work with 
> symbolic powers
> 9898df4172 Trac #23793: Doctest: Bug in symbolic GCD computations 
> involving complex I
> af44562d9f Trac #23742: Check for overflow in matrix_mod2_dense
> 14d3ce4969 Trac #23707: More competitive and comprehensive finite 
> dimensional algebras
> 7c41260607 Trac #23400: Cleanup of matrix_gfpn_dense
> 4879c7f48a Trac #22391: Always use PPL for facet normals of lattice 
> polytopes
> 35f930c0fc Trac #22073: Surprising matrix solve error message
> d6f7f9e5bd Trac #18970: Log function and documentation revamp
> e7f6e8fede Trac #10035: Hold context
> 88b3fbff89 Trac #24072: Disallow positive characteristic in the symbolic 
> ring
> 3e7031cef8 Trac #14305: Doctest: Immediate simplifications of symbolic 
> powers
> 4dd39c0de8 Trac #24092: 

Re: [sage-release] Re: Sage 8.1.rc0 released

[John H Palmieri]

Yes, I agree, in the sense that the failure is coming from the doctests 
added there. I just tried the same doctests (without the rest of the 
changes from #23742) with 8.1.beta8, and the same thing happens. So it 
looks like #23742 adds doctests but doesn't fully fix the issues that the 
doctests are testing.

Can anyone else reproduce this?


On Thursday, November 9, 2017 at 2:44:43 PM UTC-8, François Bissey wrote:
>
> Smells like https://trac.sagemath.org/ticket/23742 
>
> > On 10/11/2017, at 11:31, John H Palmieri  > wrote: 
> > 
> > WIth OS X 10.12.6, Xcode (and the same happens when building with clang, 
> #12426): 
> > 
> > sage -t --long --warn-long 64.0 src/sage/matrix/matrix_mod2_dense.pyx  # 
> Killed due to kill signal 
> > 
> > ** 
> > Tests run before process (pid=12556) failed: 
> > sage: a = matrix(GF(2),3,range(9),sparse=False); a ## line 8 ## 
> > [0 1 0] 
> > [1 0 1] 
> > [0 1 0] 
> > sage: a.rank() ## line 12 ## 
> > 2 
> > sage: type(a) ## line 14 ## 
> >  
> > sage: a[0,0] = 1 ## line 16 ## 
> > sage: a.rank() ## line 17 ## 
> > 3 
> > sage: parent(a) ## line 19 ## 
> > Full MatrixSpace of 3 by 3 dense matrices over Finite Field of size 2 
> > sage: a^2 ## line 22 ## 
> > [0 1 1] 
> > [1 0 0] 
> > [1 0 1] 
> > sage: a+a ## line 26 ## 
> > [0 0 0] 
> > [0 0 0] 
> > [0 0 0] 
> > sage: b = a.new_matrix(2,3,range(6)); b ## line 31 ## 
> > [0 1 0] 
> > [1 0 1] 
> > sage: a*b ## line 35 ## 
> > sage: b*a ## line 39 ## 
> > [1 0 1] 
> > [1 0 0] 
> > sage: TestSuite(a).run() ## line 43 ## 
> > sage: TestSuite(b).run() ## line 44 ## 
> > sage: a.echelonize(); a ## line 46 ## 
> > [1 0 0] 
> > [0 1 0] 
> > [0 0 1] 
> > sage: b.echelonize(); b ## line 50 ## 
> > [1 0 1] 
> > [0 1 0] 
> > sage: FF = FiniteField(2) ## line 56 ## 
> > sage: V = VectorSpace(FF,2) ## line 57 ## 
> > sage: v = V([0,1]); v ## line 58 ## 
> > (0, 1) 
> > sage: W = V.subspace([v]) ## line 60 ## 
> > sage: W ## line 61 ## 
> > Vector space of degree 2 and dimension 1 over Finite Field of size 2 
> > Basis matrix: 
> > [0 1] 
> > sage: v in W ## line 65 ## 
> > True 
> > sage: M = Matrix(GF(2), [[1,1,0],[0,1,0]]) ## line 68 ## 
> > sage: M.row_space() ## line 69 ## 
> > Vector space of degree 3 and dimension 2 over Finite Field of size 2 
> > Basis matrix: 
> > [1 0 0] 
> > [0 1 0] 
> > sage: M = Matrix(GF(2), [[1,1,0],[0,0,1]]) ## line 75 ## 
> > sage: M.row_space() ## line 76 ## 
> > Vector space of degree 3 and dimension 2 over Finite Field of size 2 
> > Basis matrix: 
> > [1 1 0] 
> > [0 0 1] 
> > sage: sig_on_count() # check sig_on/off pairings (virtual doctest) ## 
> line 90 ## 
> > 0 
> > sage: type(random_matrix(GF(2),2,2)) ## line 165 ## 
> >  
> > sage: Matrix(GF(2),3,3,1) # indirect doctest ## line 168 ## 
> > [1 0 0] 
> > [0 1 0] 
> > [0 0 1] 
> > sage: matrix(GF(2),0,[]) * vector(GF(2),0,[]) ## line 177 ## 
> > () 
> > sage: MatrixSpace(GF(2), 2^30)(1) ## line 182 ## 
>
>

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Re: [sage-release] Re: Sage 8.1.rc0 released

[François Bissey]

Smells like https://trac.sagemath.org/ticket/23742

> On 10/11/2017, at 11:31, John H Palmieri  wrote:
> 
> WIth OS X 10.12.6, Xcode (and the same happens when building with clang, 
> #12426):
> 
> sage -t --long --warn-long 64.0 src/sage/matrix/matrix_mod2_dense.pyx  # 
> Killed due to kill signal
> 
> **
> Tests run before process (pid=12556) failed:
> sage: a = matrix(GF(2),3,range(9),sparse=False); a ## line 8 ##
> [0 1 0]
> [1 0 1]
> [0 1 0]
> sage: a.rank() ## line 12 ##
> 2
> sage: type(a) ## line 14 ##
> 
> sage: a[0,0] = 1 ## line 16 ##
> sage: a.rank() ## line 17 ##
> 3
> sage: parent(a) ## line 19 ##
> Full MatrixSpace of 3 by 3 dense matrices over Finite Field of size 2
> sage: a^2 ## line 22 ##
> [0 1 1]
> [1 0 0]
> [1 0 1]
> sage: a+a ## line 26 ##
> [0 0 0]
> [0 0 0]
> [0 0 0]
> sage: b = a.new_matrix(2,3,range(6)); b ## line 31 ##
> [0 1 0]
> [1 0 1]
> sage: a*b ## line 35 ##
> sage: b*a ## line 39 ##
> [1 0 1]
> [1 0 0]
> sage: TestSuite(a).run() ## line 43 ##
> sage: TestSuite(b).run() ## line 44 ##
> sage: a.echelonize(); a ## line 46 ##
> [1 0 0]
> [0 1 0]
> [0 0 1]
> sage: b.echelonize(); b ## line 50 ##
> [1 0 1]
> [0 1 0]
> sage: FF = FiniteField(2) ## line 56 ##
> sage: V = VectorSpace(FF,2) ## line 57 ##
> sage: v = V([0,1]); v ## line 58 ##
> (0, 1)
> sage: W = V.subspace([v]) ## line 60 ##
> sage: W ## line 61 ##
> Vector space of degree 2 and dimension 1 over Finite Field of size 2
> Basis matrix:
> [0 1]
> sage: v in W ## line 65 ##
> True
> sage: M = Matrix(GF(2), [[1,1,0],[0,1,0]]) ## line 68 ##
> sage: M.row_space() ## line 69 ##
> Vector space of degree 3 and dimension 2 over Finite Field of size 2
> Basis matrix:
> [1 0 0]
> [0 1 0]
> sage: M = Matrix(GF(2), [[1,1,0],[0,0,1]]) ## line 75 ##
> sage: M.row_space() ## line 76 ##
> Vector space of degree 3 and dimension 2 over Finite Field of size 2
> Basis matrix:
> [1 1 0]
> [0 0 1]
> sage: sig_on_count() # check sig_on/off pairings (virtual doctest) ## line 90 
> ##
> 0
> sage: type(random_matrix(GF(2),2,2)) ## line 165 ##
> 
> sage: Matrix(GF(2),3,3,1) # indirect doctest ## line 168 ##
> [1 0 0]
> [0 1 0]
> [0 0 1]
> sage: matrix(GF(2),0,[]) * vector(GF(2),0,[]) ## line 177 ##
> ()
> sage: MatrixSpace(GF(2), 2^30)(1) ## line 182 ##

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[sage-release] Re: Sage 8.1.rc0 released

[John H Palmieri]

WIth OS X 10.12.6, Xcode (and the same happens when building with clang, 
#12426):

sage -t --long --warn-long 64.0 src/sage/matrix/matrix_mod2_dense.pyx  # 
Killed due to kill signal

**
Tests run before process (pid=12556) failed:
sage: a = matrix(GF(2),3,range(9),sparse=False); a ## line 8 ##
[0 1 0]
[1 0 1]
[0 1 0]
sage: a.rank() ## line 12 ##
2
sage: type(a) ## line 14 ##

sage: a[0,0] = 1 ## line 16 ##
sage: a.rank() ## line 17 ##
3
sage: parent(a) ## line 19 ##
Full MatrixSpace of 3 by 3 dense matrices over Finite Field of size 2
sage: a^2 ## line 22 ##
[0 1 1]
[1 0 0]
[1 0 1]
sage: a+a ## line 26 ##
[0 0 0]
[0 0 0]
[0 0 0]
sage: b = a.new_matrix(2,3,range(6)); b ## line 31 ##
[0 1 0]
[1 0 1]
sage: a*b ## line 35 ##
sage: b*a ## line 39 ##
[1 0 1]
[1 0 0]
sage: TestSuite(a).run() ## line 43 ##
sage: TestSuite(b).run() ## line 44 ##
sage: a.echelonize(); a ## line 46 ##
[1 0 0]
[0 1 0]
[0 0 1]
sage: b.echelonize(); b ## line 50 ##
[1 0 1]
[0 1 0]
sage: FF = FiniteField(2) ## line 56 ##
sage: V = VectorSpace(FF,2) ## line 57 ##
sage: v = V([0,1]); v ## line 58 ##
(0, 1)
sage: W = V.subspace([v]) ## line 60 ##
sage: W ## line 61 ##
Vector space of degree 2 and dimension 1 over Finite Field of size 2
Basis matrix:
[0 1]
sage: v in W ## line 65 ##
True
sage: M = Matrix(GF(2), [[1,1,0],[0,1,0]]) ## line 68 ##
sage: M.row_space() ## line 69 ##
Vector space of degree 3 and dimension 2 over Finite Field of size 2
Basis matrix:
[1 0 0]
[0 1 0]
sage: M = Matrix(GF(2), [[1,1,0],[0,0,1]]) ## line 75 ##
sage: M.row_space() ## line 76 ##
Vector space of degree 3 and dimension 2 over Finite Field of size 2
Basis matrix:
[1 1 0]
[0 0 1]
sage: sig_on_count() # check sig_on/off pairings (virtual doctest) ## line 
90 ##
0
sage: type(random_matrix(GF(2),2,2)) ## line 165 ##

sage: Matrix(GF(2),3,3,1) # indirect doctest ## line 168 ##
[1 0 0]
[0 1 0]
[0 0 1]
sage: matrix(GF(2),0,[]) * vector(GF(2),0,[]) ## line 177 ##
()
sage: MatrixSpace(GF(2), 2^30)(1) ## line 182 ##

**

On Wednesday, November 8, 2017 at 1:30:44 PM UTC-8, 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
>
> b707ce9348 (tag: 8.1.rc0, trac/develop) Updated SageMath version to 8.1.rc0
> 0542f0a7fb Trac #19517: Graphs: canonical_label() and several errors
> c73b0be317 Trac #24143: zeromq: don't use -Werror
> 06dbe2327a Trac #24154: Fix equation handling of 
> Polyhedron.to_linear_program() and thus 
> integral_points_count(preprocess=True)
> 23c060c581 Trac #24062: Upgrade to SymPy-1.1.1
> a89800b2e0 Trac #16801: Conversion of psi(x,y) to/from SymPy
> dc9be1b424 Trac #20204: Fix problems with constructing or converting to 
> SymPy expressions
> 8ad8826519 Trac #23954: Mass change of docstring: from "-" to "--", 
> variables with underscores
> 82666c4788 Trac #24095: Part 2, "Posets.*" to "posets.*"
> 780f69dd4d Trac #24076: Pep8-compliance, lattices.py as an example
> e33beaf80a Trac #24069: let our required header be pep8 compliant
> ca925431c8 Trac #24048: Unify selfdual and self_dual
> 071c1bf918 Trac #18536: Solvers for constant sum games
> 5c90df6193 Trac #24133: py3 : get rid of im_func again
> 13d7a570cb Trac #24132: py3: some care for items() and values()
> 3897c7f864 Trac #24126: py3: some more care for keys()[...]
> 63273442d6 Trac #24119: Create an assuming() context manager
> 701897ecc3 Trac #24114: prefer list(K) over K.list() for syndrom decoder
> 4d82659aaa Trac #24104: Merge the code of ex.solve(...) and solve(...)
> 004a326306 Trac #23991: Update curl to 7.56.1
> 4ddb4717bd Trac #23787: py3: richcmp for ideals
> b78794f137 Trac #23112: Repair math-readline script for interactive use, 
> mathematica_console and make Mathematica pexpect work without helper script
> c59a1adb5b Trac #20439: eigenmatrix_right gives the conjugate of what it 
> should
> a181bc24e8 Trac #24081: Use system curl if possible
> 4398274f52 Trac #24061: Slightly faster test for semiorder
> 7c6371b16d Trac #11541: Add example with solution_dict and substituting in 
> a matrix
> 9d1fdaa3c0 Trac #24127: py3: adding hash for complex fields
> 7ec526c44c Trac #24124: lazy import hecke algebras
> 75e5ef97f6 Trac #24120: Implement the q-Pochhammer symbol
> 20f0073693 Trac #24116: Fix Cython warnings in finite_rings
> 9896ca2282 Trac #24113: Add test for cactus graph
> 326106ee54 Trac #24110: Upgrade to Cython 0.27.2
> 7b3992b637 Trac #24109: Always enable debug.bad_parent_warnings
> 02cebd0016 Trac #24105: Deprecate Sage-specific Cython pragmas like #clib
> e738d859cb Trac #24103: Remove a lot of deprecated code
> b8686f64dd Trac #24026: Upgrade R to 3.4.2
> 75506c95b1 Trac #23982: perfect matchings and containment
> a62930e0e7 Trac #23919: Sage library: standardize on C99 and C++11
>