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
>

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
>> [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
>>
>> 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
>>
>> 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
>>
>> 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
>>
>> 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
>>
>> 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
>> [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
>> [I 16:21:06.632 NotebookApp]  or 
>> 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
>>      or 
>> 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
>> [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 
>>>
>>> 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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