Sage 8.7.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

db4e4a6e16 (tag: 8.7.beta4, trac/develop) Updated SageMath version to 8.7.beta4

f044f2a5fc Trac #27237: Clean up various Cython cimports

c365f7f1cf Trac #27279: Remove a deprecation

71da5bf772 Trac #27121: Global function fields: divisors

119fa6f8e3 Trac #27269: Use time.process_time() on Python 3

b32df2da8b Trac #27260: zn_poly tries to run "python" and "2to3"

903bb20ba3 Trac #27254: MP_LIBRARY, BLAS, PYTHON need inst_ in Makefile.in

8af4edb6d3 Trac #27253: networkx fails to build with SAGE_CHECK="yes"

db518300e3 Trac #27251: fpylll: add patch for Cython 3.0

6c3a7a7aec Trac #27176: py3: fix doctest in generic_graph (part 1)

6cc2e30976 Trac #27183: py3: fix doctest in generic_graph (part 5)

1ff081584e Trac #27165: py3: fix doctests in c_graph.pyx

f62ce0dffd Trac #27085: documentation: Improve sphinx_plot to create scalable graphics

7eca460dab Trac #26679: clean generic_graph.py (part 13) - searches and constructors

6772ac9c78 Trac #27263: Upgrade to giac 1.5 fails to build with older libstdc++

714748d8b2 Trac #27249: fix doctest in graph_latex

4c716d966e Trac #27248: py3: some care for divisions

2b16581611 Trac #27243: py3: fix doctests in generic_graph (part 7) -- relabel

76ecbbf393 Trac #27234: Implement method `gap` of class `PermutationGroupElement` properly.

3192e1f4de Trac #27231: Interface nauty's directg command with sage

03d17097fe Trac #27208: Make comparison of Matrix_gfpn_dense more efficient

8eaad1f10a Trac #27196: make sagelib work and doctest even if SAGE_ROOT is None

63f8a3c641 Trac #27000: Upgrade NumPy to 1.16.1

4af82fdfee Trac #26815: pep8 cleaning in distances and distance_all_pairs

13f46acfb6 Trac #27240: py3: tests/cmdline.py

18caf1ba47 Trac #27130: posets.RandomLattice() cannot generate some lattices

154bc494e7 Trac #27246: py3: fix doctests in generic_graph (part 10) -- is_isomorphic

c632cec7cb Trac #27244: py3: fix doctests in generic_graph (part 8) -- coarsest_equitable_refinement

24bdd0ba2b Trac #27242: py3: strengthen a doctest in vertex_separation.pyx

ee49943109 Trac #27239: py3: some fixes in ntl

ded99bfcda Trac #22029: Element richcmp: never use id()

d4add0dd4b Trac #23572: doctests for the english translation of the book "Calcul mathématique avec Sage"

cd783a3ac1 Trac #27241: Upgrade to Pynac-0.7.24

b66fae2dc5 Trac #27230: Improve detection of library files in sage.env

73708573c5 Trac #27114: Further libffi fixes

421be4ae83 Trac #27229: Add .real and .imag properties to gsl_complex

aa1b68b91c Trac #27226: Convert back vectors from Maple

a96b78efe1 Trac #27211: Simplicial complexes: correct the documentation

8a58b7189f Trac #27219: bootstrap should fail gracefully, if there is no pkg-config available

6023e396b7 Trac #27143: Add option to `as_permutation_group` to initialize the seed for pseudo random results via libgap

4ea9258cfb Trac #26356: Minimal approximant bases

3388e9e388 Trac #25899: conversion of fricas sums and products

832b97cd5d (tag: 8.7.beta3) Updated SageMath version to 8.7.beta3

[Emmanuel Charpentier]

On Debian testing running on corei7+16 GB AM, 8.7.beta4+Trac#27303 builds and passes ptestlong with one already reported failure (ginac computation of Groebner bases) .

[Eric Gourgoulhon]

On Ubuntu 18.04 running on Xeon E5-2623 + 16 GB RAM:

- python2:

  - incremental build (from 8.7.beta2) OK

  - all tests from ptestlong passed

 

- python3:

  - incremental build (from 8.7.beta2) OK

  - all tests from ptest-python3 passed

Eric.

[Sébastien Labbé]

Using --optional=bliss,cbc,ccache,cmake,cryptominisat,dot2tex,external,glucose,gmpy2,lrslib,memlimit,mpir,normaliz,notedown,pandoc_attributes,pycosat,pynormaliz,python2,rst2ipynb,sage

External software detected for doctesting: ffmpeg,graphviz,gurobi,imagemagick,internet,latex,pandoc

I get:

----------------------------------------------------------------------

sage -t --long src/sage/databases/oeis.py  # 1 doctest failed
sage -t --long src/sage/combinat/designs/ext_rep.py  # 1 doctest failed
sage -t --long src/sage/sat/boolean_polynomials.py  # 1 doctest failed
sage -t --long src/sage/misc/persist.pyx  # 2 doctests failed
----------------------------------------------------------------------

boolean_polynomial failure is not reproducable.

the oeis failure is copied below:

sage -t --long src/sage/databases/oeis.py
**********************************************************************
File "src/sage/databases/oeis.py", line 929, in sage.databases.oeis.OEISSequence.natural_object
Failed example:
    av = oeis('A087778') ; av             # optional -- internet
Expected:
    A087778: Decimal expansion of Avogadro's constant.
Got:
    A087778: Decimal expansion of Avogadro's constant (in mol^{-1}).
**********************************************************************
1 item had failures:
   1 of  22 in sage.databases.oeis.OEISSequence.natural_object
    [264 tests, 1 failure, 54.76 s]
----------------------------------------------------------------------

[Dima Pasechnik]

this is to be fixed by https://gitlab.com/sagemath/sage/merge_requests/8