On Mac OS.10.15.6 with Intel Dual Core,  I could compile it.  But when I did
      make ptestlong
, I got

----------------------------------------------------------------------
sage -t --long --warn-long 125.6 src/sage/misc/sageinspect.py  # 1 doctest 
failed
sage -t --long --warn-long 125.6 src/sage/interfaces/interface.py  # 1 doctest 
failed
sage -t --long --warn-long 125.6 src/sage/schemes/elliptic_curves/ell_field.py  
# 1 doctest failed
sage -t --long --warn-long 125.6 src/sage/repl/ipython_tests.py  # 1 doctest 
failed
sage -t --long --warn-long 125.6 src/sage/interfaces/r.py  # 1 doctest failed
sage -t --long --warn-long 125.6 
src/doc/en/prep/Quickstarts/Statistics-and-Distributions.rst  # 1 doctest failed
sage -t --long --warn-long 125.6 src/sage/stats/r.py  # 1 doctest failed
----------------------------------------------------------------------
Total time for all tests: 6862.8 seconds
    cpu time: 20033.0 seconds
    cumulative wall time: 26877.9 seconds
make: *** [ptestlong] Error 1

. 

> 2020/07/14 17:23、Emmanuel Charpentier <emanuel.charpent...@gmail.com>のメール:
> 
> 
> 
> Le mardi 14 juillet 2020 16:47:04 UTC+2, Dima Pasechnik a écrit :
> ./sage -b
> 
> should make jupyter notebook work again
> 
> Indeed... This also allows to create a Sage or Gap sheet in the systemwide 
> Jupyter. the Pari kernel still fails.
> 
> BTW : the singular kernel does not qwork in euther Sage's or systemide 
> Jupyter , complaining of :
> 
> [I 17:03:33.105 NotebookApp] Creating new notebook in 
> [I 17:03:34.029 NotebookApp] Kernel started: 
> 4e45ede1-0b60-4cd6-be87-e8cc02f05161
> /usr/bin/python: No module named jupyter_kernel_singular
> [I 17:03:37.030 NotebookApp] KernelRestarter: restarting kernel (1/5), new 
> random ports
> /usr/bin/python: No module named jupyter_kernel_singular
> [I 17:03:40.038 NotebookApp] KernelRestarter: restarting kernel (2/5), new 
> random ports
> /usr/bin/python: No module named jupyter_kernel_singular
> [I 17:03:43.046 NotebookApp] KernelRestarter: restarting kernel (3/5), new 
> random ports
> /usr/bin/python: No module named jupyter_kernel_singular
> [I 17:03:46.055 NotebookApp] KernelRestarter: restarting kernel (4/5), new 
> random ports
> /usr/bin/python: No module named jupyter_kernel_singular
> [W 17:03:49.063 NotebookApp] KernelRestarter: restart failed
> [W 17:03:49.064 NotebookApp] Kernel 4e45ede1-0b60-4cd6-be87-e8cc02f05161 
> died, removing from map.
> [W 17:04:34.108 NotebookApp] Timeout waiting for kernel_info reply from 
> 4e45ede1-0b60-4cd6-be87-e8cc02f05161
> [E 17:04:34.110 NotebookApp] Error opening stream: HTTP 404: Not Found 
> (Kernel does not exist: 4e45ede1-0b60-4cd6-be87-e8cc02f05161)
> 
> in Sage's jupyter.
> 
> 
> see https://trac.sagemath.org/ticket/30123 
> <https://trac.sagemath.org/ticket/30123>
> 
> I pointed your answer in this ticket. 
> 
> Thanks a lot !
> 
> On Tue, Jul 14, 2020 at 3:44 PM Emmanuel Charpentier <emanuel.c...@gmail.com 
> <>> wrote:
> On Debian testing running on ore i7 + 16 GB RAM, upgrading a rebuilt Sage 
> 9.2.beta4 to 9.2.beta5 and running ptestlong~ gives one transient timeout and 
> three permanent errors:
> 
> File  Result  P/T
> src/sage/tests/parigp.py      Timed out       T
> src/sage/rings/complex_arb.pyx        6 doctests failed       P
> src/sage/tests/gap_packages.py        1 doctest failed        P
> src/sage/rings/real_arb.pyx   2 doctests failed       P
> Those errors are identical to those already reported for beta2 and beta4.
> 
> Furthermore, the jupyter notebook, which worked until rebuilding 9.2.beta4, 
> is now somehow broken:
> 
> harpent@zen-book-flip:~$ sage -n jupyter
> ┌────────────────────────────────────────────────────────────────────┐
> │ SageMath version 9.2.beta5, Release Date: 2020-07-12               │
> │ Using Python 3.7.3. Type "help()" for help.                        │
> └────────────────────────────────────────────────────────────────────┘
> ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
> ┃ Warning: this is a prerelease version, and it may be unstable.     ┃
> ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
> Please wait while the Sage Jupyter Notebook server starts...
> [I 15:55:11.828 NotebookApp] Using MathJax: nbextensions/mathjax/MathJax.js
> [I 15:55:12.097 NotebookApp] The port 8888 is already in use, trying another 
> port.
> [I 15:55:12.106 NotebookApp] Serving notebooks from local directory: 
> /home/charpent
> [I 15:55:12.106 NotebookApp] The Jupyter Notebook is running at:
> [I 15:55:12.106 NotebookApp] 
> http://localhost:8889/?token=8d1b867d9e40a773d742265910124cc9653e6dd28e35df52 
> <http://localhost:8889/?token=8d1b867d9e40a773d742265910124cc9653e6dd28e35df52>
> [I 15:55:12.106 NotebookApp] Use Control-C to stop this server and shut down 
> all kernels (twice to skip confirmation).
> [C 15:55:12.137 NotebookApp] 
> 
>     To access the notebook, open this file in a browser:
>         file:///run/user/1000/jupyter/nbserver-734665-open.html
>     Or copy and paste one of these URLs:
>         
> http://localhost:8889/?token=8d1b867d9e40a773d742265910124cc9653e6dd28e35df52 
> <http://localhost:8889/?token=8d1b867d9e40a773d742265910124cc9653e6dd28e35df52>
> Attempt to create a Python 3 sheet :
> 
> [I 15:55:21.557 NotebookApp] Creating new notebook in 
> [W 15:55:22.259 NotebookApp] 404 GET 
> /nbextensions/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML-full,Safe&delayStartupUntil=configured
>  (::1) 26.95ms 
> referer=http://localhost:8889/notebooks/Untitled.ipynb?kernel_name=python3 
> <http://localhost:8889/notebooks/Untitled.ipynb?kernel_name=python3>
> Attempt to create a Sage sheet :
> 
> [I 15:55:38.201 NotebookApp] Creating new notebook in 
> [W 15:55:38.610 NotebookApp] 404 GET 
> /nbextensions/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML-full,Safe&delayStartupUntil=configured
>  (::1) 4.22ms 
> referer=http://localhost:8889/notebooks/Untitled1.ipynb?kernel_name=sagemath 
> <http://localhost:8889/notebooks/Untitled1.ipynb?kernel_name=sagemath>
> Attempt to create a Gap sheet :
> 
> [I 15:56:23.326 NotebookApp] Creating new notebook in 
> [W 15:56:23.715 NotebookApp] 404 GET 
> /nbextensions/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML-full,Safe&delayStartupUntil=configured
>  (::1) 5.99ms 
> referer=http://localhost:8889/notebooks/Untitled2.ipynb?kernel_name=gap 
> <http://localhost:8889/notebooks/Untitled2.ipynb?kernel_name=gap>
> Attempt to create a Pari sheet :
> 
> [I 15:57:23.483 NotebookApp] Creating new notebook in 
> [W 15:57:23.877 NotebookApp] 404 GET 
> /nbextensions/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML-full,Safe&delayStartupUntil=configured
>  (::1) 5.48ms 
> referer=http://localhost:8889/notebooks/Untitled3.ipynb?kernel_name=pari_jupyter
>  <http://localhost:8889/notebooks/Untitled3.ipynb?kernel_name=pari_jupyter>
> Attempt to create an R sheet (IR kernel is a systemwide Jupyter kernel,
> symlinked into Sage) :
> 
> [I 15:57:52.365 NotebookApp] Creating new notebook in 
> [W 15:57:52.762 NotebookApp] 404 GET 
> /nbextensions/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML-full,Safe&delayStartupUntil=configured
>  (::1) 5.52ms 
> referer=http://localhost:8889/notebooks/Untitled4.ipynb?kernel_name=ir 
> <http://localhost:8889/notebooks/Untitled4.ipynb?kernel_name=ir>
> [W 15:58:50.787 NotebookApp] delete /Untitled.ipynb
> [W 15:58:50.791 NotebookApp] delete /Untitled2.ipynb
> [W 15:58:50.794 NotebookApp] delete /Untitled1.ipynb
> [W 15:58:50.797 NotebookApp] delete /Untitled3.ipynb
> [W 15:58:50.800 NotebookApp] delete /Untitled4.ipynb
> [I 15:58:54.627 NotebookApp] Shutting down on /api/shutdown request.
> [I 15:58:54.627 NotebookApp] Shutting down 0 kernels
> In all these cases, the browser (Debian’s chromium) create a new tab, that 
> remains blank and inactive until (manually) closed.
> 
> In contrast, the system Jupyter notebook, using symlinked kernels, can create 
> and use active Sagemath and Gap sheets ; the Pari kernel fails to start its 
> interpreter, however :
> 
> charpent@zen-book-flip:~$ jupyter notebook
> [I 16:21:06.627 NotebookApp] The port 8888 is already in use, trying another 
> port.
> [I 16:21:06.632 NotebookApp] Serving notebooks from local directory: 
> /home/charpent
> [I 16:21:06.632 NotebookApp] The Jupyter Notebook is running at:
> [I 16:21:06.632 NotebookApp] 
> http://localhost:8889/?token=a6b03587590b0615808a11b8c65e98554a5896f701a3bf78 
> <http://localhost:8889/?token=a6b03587590b0615808a11b8c65e98554a5896f701a3bf78>
> [I 16:21:06.632 NotebookApp]  or 
> http://127.0.0.1:8889/?token=a6b03587590b0615808a11b8c65e98554a5896f701a3bf78 
> <http://127.0.0.1:8889/?token=a6b03587590b0615808a11b8c65e98554a5896f701a3bf78>
> [I 16:21:06.632 NotebookApp] Use Control-C to stop this server and shut down 
> all kernels (twice to skip confirmation).
> [C 16:21:06.650 NotebookApp] 
> 
>     To access the notebook, open this file in a browser:
>         
> file:///home/charpent/.local/share/jupyter/runtime/nbserver-736070-open.html
>     Or copy and paste one of these URLs:
>         
> http://localhost:8889/?token=a6b03587590b0615808a11b8c65e98554a5896f701a3bf78 
> <http://localhost:8889/?token=a6b03587590b0615808a11b8c65e98554a5896f701a3bf78>
>      or 
> http://127.0.0.1:8889/?token=a6b03587590b0615808a11b8c65e98554a5896f701a3bf78 
> <http://127.0.0.1:8889/?token=a6b03587590b0615808a11b8c65e98554a5896f701a3bf78>
> [I 16:21:22.870 NotebookApp] Creating new notebook in
> Successful creation (modulo minor booboos) of a Sagemath sheet :
> 
> [I 16:21:23.866 NotebookApp] Kernel started: 
> e462e630-07a7-418c-b3c9-be44595bae8f
> [I 16:21:25.256 NotebookApp] Adapting from protocol version 5.1 (kernel 
> e462e630-07a7-418c-b3c9-be44595bae8f) to 5.3 (client).
> [IPKernelApp] ERROR | No such comm target registered: jupyter.widget.version
> [IPKernelApp] ERROR | No such comm target registered: jupyter.widget.version
> Successful creation (modulo minor booboos) of a Gap sheet :
> 
> [I 16:21:39.302 NotebookApp] Creating new notebook in 
> [I 16:21:40.193 NotebookApp] Kernel started: 
> 1f2c926b-0da9-42e5-b386-c4480ae3d5a3
> [IPKernelApp] ERROR | ('starting GAP: gap',)
> [I 16:21:41.794 NotebookApp] Adapting from protocol version 5.1 (kernel 
> 1f2c926b-0da9-42e5-b386-c4480ae3d5a3) to 5.3 (client).
> [IPKernelApp] WARNING | Unknown message type: 'comm_open'
> [IPKernelApp] WARNING | Unknown message type: 'comm_open'
> [IPKernelApp] ERROR | ('command JUPYTER_RunCommand("1+2; ;");',)
> [IPKernelApp] ERROR | ('reply {"result" : {"name" : "stdout","text" : 
> "3"},"status" : "ok"}',)
> [IPKernelApp] ERROR | ('json part: {"result" : {"name" : "stdout","text" : 
> "3"},"status" : "ok"}',)
> [IPKernelApp] ERROR | ('rest part: ',)
> Unsuccessful creation of a Pari sheet (the sheet is created and seems active, 
> but the kernel doesn’t start) :
> 
> [I 16:22:55.964 NotebookApp] Creating new notebook in 
> [I 16:22:56.903 NotebookApp] Kernel started: 
> 5e902bf3-eb88-42f3-b830-ab3386b66372
> /usr/bin/python3: No module named PARIKernel
> [I 16:22:59.903 NotebookApp] KernelRestarter: restarting kernel (1/5), new 
> random ports
> /usr/bin/python3: No module named PARIKernel
> [I 16:23:02.908 NotebookApp] KernelRestarter: restarting kernel (2/5), new 
> random ports
> /usr/bin/python3: No module named PARIKernel
> [I 16:23:05.914 NotebookApp] KernelRestarter: restarting kernel (3/5), new 
> random ports
> /usr/bin/python3: No module named PARIKernel
> [I 16:23:08.920 NotebookApp] KernelRestarter: restarting kernel (4/5), new 
> random ports
> /usr/bin/python3: No module named PARIKernel
> [W 16:23:11.925 NotebookApp] KernelRestarter: restart failed
> [W 16:23:11.926 NotebookApp] Kernel 5e902bf3-eb88-42f3-b830-ab3386b66372 
> died, removing from map.
> [I 16:23:24.665 NotebookApp] Saving file at /Untitled.ipynb
> [I 16:23:40.661 NotebookApp] Saving file at /Untitled1.ipynb
> [W 16:23:56.964 NotebookApp] Timeout waiting for kernel_info reply from 
> 5e902bf3-eb88-42f3-b830-ab3386b66372
> [E 16:23:56.965 NotebookApp] Error opening stream: HTTP 404: Not Found 
> (Kernel does not exist: 5e902bf3-eb88-42f3-b830-ab3386b66372)
> [W 16:23:58.014 NotebookApp] 404 GET 
> /api/kernels/5e902bf3-eb88-42f3-b830-ab3386b66372/channels?session_id=1834273a3dab45cdb9e19c7648034db2
>  (::1): Kernel does not exist: 5e902bf3-eb88-42f3-b830-ab3386b66372
> [W 16:23:58.134 NotebookApp] 404 GET 
> /api/kernels/5e902bf3-eb88-42f3-b830-ab3386b66372/channels?session_id=1834273a3dab45cdb9e19c7648034db2
>  (::1) 122.97ms referer=None
> [W 16:24:00.152 NotebookApp] Replacing stale connection: 
> 5e902bf3-eb88-42f3-b830-ab3386b66372:1834273a3dab45cdb9e19c7648034db2
> [W 16:24:10.322 NotebookApp] 410 DELETE 
> /api/sessions/f70aa579-9aaf-42e7-97a1-c6f34210d33c (::1): Kernel deleted 
> before session
> [W 16:24:10.323 NotebookApp] Kernel deleted before session
> [W 16:24:10.323 NotebookApp] 410 DELETE 
> /api/sessions/f70aa579-9aaf-42e7-97a1-c6f34210d33c (::1) 2.21ms 
> referer=http://localhost:8889/notebooks/Untitled2.ipynb?kernel_name=pari_jupyter
>  <http://localhost:8889/notebooks/Untitled2.ipynb?kernel_name=pari_jupyter>
> [I 16:24:19.946 NotebookApp] Starting buffering for 
> 1f2c926b-0da9-42e5-b386-c4480ae3d5a3:bc7e5478bf2d4ffc9356a9ceb165f180
> [I 16:24:19.951 NotebookApp] Kernel shutdown: 
> 1f2c926b-0da9-42e5-b386-c4480ae3d5a3
> [I 16:24:25.634 NotebookApp] Starting buffering for 
> e462e630-07a7-418c-b3c9-be44595bae8f:0fb85877a57b42debd5f4d4ca8f9aa9c
> [I 16:24:25.640 NotebookApp] Kernel shutdown: 
> e462e630-07a7-418c-b3c9-be44595bae8f
> [W 16:24:55.592 NotebookApp] delete /Untitled.ipynb
> [W 16:24:55.604 NotebookApp] delete /Untitled1.ipynb
> [W 16:24:55.606 NotebookApp] delete /Untitled2.ipynb
> [I 16:25:00.491 NotebookApp] Shutting down on /api/shutdown request.
> [I 16:25:00.492 NotebookApp] Shutting down 0 kernels
> FWIW :
> 
> charpent@zen-book-flip:~$ sage -jupyter kernelspec list
> Available kernels:
> gap /usr/local/sage-9/local/share/jupyter/kernels/gap
> pari_jupyter /usr/local/sage-9/local/share/jupyter/kernels/pari_jupyter
> python3 /usr/local/sage-9/local/share/jupyter/kernels/python3
> sagemath /usr/local/sage-9/local/share/jupyter/kernels/sagemath
> ir /usr/local/share/jupyter/kernels/ir
> charpent@zen-book-flip:~$ jupyter kernelspec list
> Available kernels:
> ir /usr/local/share/jupyter/kernels/ir
> gap /usr/share/jupyter/kernels/gap
> pari_jupyter /usr/share/jupyter/kernels/pari_jupyter
> python3 /usr/share/jupyter/kernels/python3
> 
> HTH,
> 
> sagemath /usr/share/jupyter/kernels/sagemath
> 
> 
> 
> Le dimanche 12 juillet 2020 11:22:00 UTC+2, 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 
> <http://www.sagemath.org/download-latest.html> 
> 
> 467fbc70a0 (tag: 9.2.beta5, trac/develop) Updated SageMath version to 
> 9.2.beta5
> 339b459959 Trac #25624: Latex code generated for the "cases" symbolic 
> function does not get viewed.
> 3589ab188f Trac #30110: py3: remove doctests tagged py2 in graphs
> 0e2c306454 Trac #30102: Bug with trivial input in designs.difference_family
> 66094649c5 Trac #30101: Bug in Groebner basis for Tate algebras
> fe021b3dcd Trac #30098: Remove remaining __div__ methods
> f1cc526461 Trac #30089: some details about arm lengths and conjugate in 
> partitions and Macdonald polynomials
> 02024327a3 Trac #30081: Cleaning and improving consistency in `distances` 
> methods in graph module
> feb50df138 Trac #30077: get rid of _cmp_ for list_clone
> 14ae83ba5f Trac #30072: fix some lgtm suggestions
> 452cdc5f19 Trac #30045: Bug in Reed-Solomon encoder and error-erasure decoder
> c5474af424 Trac #30016: Combinatorial designs: add function to build biplanes
> 762e2753eb Trac #29895: move sage.misc.misc.*verbose* to new module 
> sage.misc.verbose
> 62618754a7 Trac #29638: replace tuples by mpz vectors in free abelian monoids
> ee5428363d Trac #29629: Ore polynomials
> cd041d1849 Trac #30113: Fix error handling in sagelib setup.py
> 13cfd67048 Trac #30037: Added a construction for BIBDs from symmetric BIBDs
> 31ec7c350d Trac #30029: Implement another nonexistence check for symmetric 
> BIBDs
> 3baa6aae05 Trac #30020: 1 internet doctest failing in 
> combinat/species/library.py + combinat/tutorial.py
> 72a9b1c4f8 Trac #30011: Remove sage_setup/fpickle_setup.py
> a212503167 Trac #30001: Update sphinx to 3.1
> ed0fbf7078 Trac #29999: sage.rings.polynomial.evaluation: Split into 
> ..._flint and ..._ntl
> 3117f5ac83 Trac #29958: Too many strong articulation points
> a0d17af002 Trac #29942: More efficient rank and unrank for Permutations_mset
> 613162ede1 Trac #29923: Deprecate deprecated sage-cython script harder, 
> remove use of it in the main sage script
> 16c2328fb8 Trac #29905: test basic properties of polyhedra
> 04219c9cd4 Trac #29898: vertex facet graph for trivial polyhedra fails
> 66a033851d Trac #29843: Set up linear transformation with precomputed data if 
> injective
> 2429e944e4 Trac #29841: Improve obtaining combinatorial polyhedron
> 24c9b49aa6 Trac #29837: Improvement for incidence matrix of polyhedra
> 51a5d8f960 Trac #29688: Finite numbers in the signed InfinityRing ironically 
> don't have a sign
> 2fb40d2b21 Trac #27171: Move file src/bin/sage-maxima.lisp, used by sage at 
> import time, to live inside the package
> ed49c85844 Trac #21559: Install src/bin scripts by sagelib's setup.py, not 
> make
> cc19847f77 Trac #29111: src/bin/sage: Delegate handling of options of 
> sage-the-distribution, specifying a subset that is supported by sagelib proper
> 16e77bf806 Trac #4039: choose one name for  partial fraction decompositions
> 9dec446d9e Trac #29422: DiFUB  algorithm for diameter of real (unweighed) 
> directed graphs
> 92a2618778 Trac #29280: expression parser should support unicode
> eca054baeb Trac #29278: Callable symbolic expressions should be allowed to 
> have unicode identifiers
> 1948ce39e4 Trac #27934: Implement efficient all eccentricity computation for 
> undirected graphs
> 86f0ff5977 Trac #27874: Trace monoid support
> a6d25fb8a5 Trac #30082: Make ./bootstrap less sensitive to stray files in 
> build/pkgs (affects patchbot operation)
> d1b661de65 Trac #30064: Fix tox-docker builds broken by #29884
> 249771280c Trac #22191: update ECL to 20.4.24
> 02b0be1ff8 (tag: 9.2.beta4) Updated SageMath version to 9.2.beta4
>  
> 
> 
> 
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