On 9 August 2018 at 08:26, Volker Braun <vbraun.n...@gmail.com> wrote:

> The token does get generated for me, are you sure you don't have any funny
> configuration files in ~/.jupyter
>

The is nothing in there except for a file 'migrated' containing
2016-09-02T15:23:38.838391
(with no newline).  I have never done anything to configure jupyter.

As I said, it worked always before I built 8.3.


> Unless you override it in the config, the generated url should have this
> form (including the access token):
>
> [I 09:21:59.267 NotebookApp] The Jupyter Notebook is running at:
> [I 09:21:59.267 NotebookApp] http://localhost:8889/?token=
> 0df6ca362c920415eb1990bcfa4122baa094a3fdfa0f3709
>

Yes, that is what I have always seen before.

I installed the package Dima suggested but that does not affect this
issue.  It still behaves as it did yesterday.  Now the output is


$ sage --notebook=jupyter
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 8.3, Release Date: 2018-08-03                     │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
Please wait while the Sage Jupyter Notebook server starts...
[I 09:13:40.197 NotebookApp] Using MathJax: nbextensions/mathjax/MathJax.js
[I 09:13:40.455 NotebookApp] The port 8888 is already in use, trying
another port.
[I 09:13:40.460 NotebookApp] Serving notebooks from local directory:
/home/jec/.jupyter
[I 09:13:40.460 NotebookApp] 0 active kernels
[I 09:13:40.460 NotebookApp] The Jupyter Notebook is running at:
[I 09:13:40.461 NotebookApp] http://localhost:8889/
[I 09:13:40.461 NotebookApp] Use Control-C to stop this server and shut
down all kernels (twice to skip confirmation).
[68140:68140:0809/091341.230252:ERROR:sandbox_linux.cc(378)]
InitializeSandbox() called with multiple threads in process gpu-process.
[I 09:13:41.671 NotebookApp] 302 GET /tree (::1) 1.48ms
Created new window in existing browser session.

and the new window asks or a password.  I still think it is something to do
with this:

$ ps aux | grep jupyt
lowry    12387  0.0  0.0 137702340 844 ?       S     2017   0:00 python -m
sage.repl.ipython_kernel -f
/run/user/1074/jupyter/kernel-6a00c63e-3725-4a1f-9675-d31f3ca4346d.json
lowry    13787  0.0  0.0 146488296 3404 ?      S     2017   0:00 python -m
sage.repl.ipython_kernel -f
/run/user/1074/jupyter/kernel-6a00c63e-3725-4a1f-9675-d31f3ca4346d.json
lowry    49983  0.0  0.0 137942964 330344 ?    Ssl  Jul27   9:19 python -m
sage.repl.ipython_kernel -f
/run/user/1074/jupyter/kernel-10384626-e3c4-4112-99fc-c9f3f72db136.json
lowry    51560  0.0  0.0 138009880 336400 ?    Ssl  Jul27   0:54 python -m
sage.repl.ipython_kernel -f
/run/user/1074/jupyter/kernel-234bb5d0-b319-4b11-91bb-b8a5d0bb4a9d.json
lowry    56073  0.0  0.0 415368 36708 pts/51   Sl+  Feb11  41:44 python
/usr/local/sage/sage-2/src/bin/sage-notebook --notebook=jupyter --port=8888
lowry    56179  0.0  0.4 3498740 2449576 ?     Ssl  Feb11  15:55
/usr/local/sage/sage-2/local/bin/python -m ipykernel_launcher -f
/run/user/1074/jupyter/kernel-10500b86-2757-4ba6-9504-7ad81c57e5c4.json
jec      67068  0.0  0.0  14220  1012 pts/5    S+   09:12   0:00 grep
--color=auto jupyt

but the user in question is currently somewhere in deepest Iceland.

If I simply run chromium-browser on this machine (which I am logging in to
remotely) I see those error messages:

$ chromium-browser
[68969:68969:0809/091759.024888:ERROR:sandbox_linux.cc(378)]
InitializeSandbox() called with multiple threads in process gpu-process.
[68932:69172:0809/091759.442701:ERROR:bus.cc(394)] Failed to connect to the
bus: Could not parse server address: Unknown address type (examples of
valid types are "tcp" and on UNIX "unix")
[68932:68932:0809/091759.537307:ERROR:gpu_process_transport_factory.cc(1016)]
Lost UI shared context.

(chromium-browser:68932): LIBDBUSMENU-GLIB-WARNING **: Unable to get
session bus: Unknown or unsupported transport 'disabled' for address
'disabled:'

which at least shows that some of the error messages I get when trying to
run Sage jupyter notebook are nothing to do with Sage.




>
>
> On Wednesday, August 8, 2018 at 5:38:03 PM UTC+2, John Cremona wrote:
>>
>> I just updagred to 8.3 on a machine (ubuntu 16.04) where I have
>> frequently run Sage both command-line and jupyter notebook previously.  Now
>> when I type
>>
>> sage --notebook=jupyter
>>
>> I see
>>
>> ┌────────────────────────────────────────────────────────────────────┐
>> │ SageMath version 8.3, Release Date: 2018-08-03                     │
>> │ Type "notebook()" for the browser-based notebook interface.        │
>> │ Type "help()" for help.                                            │
>> └────────────────────────────────────────────────────────────────────┘
>> Please wait while the Sage Jupyter Notebook server starts...
>> [I 16:32:21.039 NotebookApp] Using MathJax: nbextensions/mathjax/MathJax.j
>> s
>> [I 16:32:21.347 NotebookApp] The port 8888 is already in use, trying
>> another port.
>> [I 16:32:21.353 NotebookApp] Serving notebooks from local directory:
>> /home/jec/sage-scripts
>> [I 16:32:21.353 NotebookApp] 0 active kernels
>> [I 16:32:21.353 NotebookApp] The Jupyter Notebook is running at:
>> [I 16:32:21.353 NotebookApp] http://localhost:8889/
>> [I 16:32:21.354 NotebookApp] Use Control-C to stop this server and shut
>> down all kernels (twice to skip confirmation).
>> Gtk-Message: Failed to load module "pk-gtk-module"
>> Gtk-Message: Failed to load module "pk-gtk-module"
>> [54010:54010:0808/163222.159037:ERROR:sandbox_linux.cc(378)]
>> InitializeSandbox() called with multiple threads in process gpu-process.
>> [53973:54212:0808/163222.855277:ERROR:bus.cc(394)] Failed to connect to
>> the bus: Could not parse server address: Unknown address type (examples of
>> valid types are "tcp" and on UNIX "unix")
>> [53973:53973:0808/163222.961497:ERROR:gpu_process_transport_factory.cc(1016)]
>> Lost UI shared context.
>>
>> (chromium-browser:53973): LIBDBUSMENU-GLIB-WARNING **: Unable to get
>> session bus: Unknown or unsupported transport 'disabled' for address
>> 'disabled:'
>> [I 16:32:22.976 NotebookApp] 302 GET /tree (::1) 2.53ms
>>
>>
>> and the browser which pops up has a plain login page asking for a
>> password.  There is a different user currently running some sessions (2 of
>> which look stale as they have been running since 2017) which is why it
>> switched from port 8888 to 8889, but I think from the above output that the
>> switch is incomplete and it wants me to log into his session on port 8888.
>> Perhaps.
>>
>> John
>>
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