Please also have her remove the directory: ~/Library/Application\ Support/SageMath-10-3/Jupyter
I misstated where the Jupyter runtime directory is located for the current 10.3 app, and this is also different from the directory that Dima mentioned, which was used by 10.2 and earlier. When the SageMath-10.3 jupyter kernel starts up it creates files in its runtime directory describing how to connect to the kernel. When the SageMath app shuts down it sends a TERM signal to the kernel process it started. When that kernel process receives the signal it removes the files it created. Sometimes it can happen that a kernel is killed in a way, which prevents it from removing its runtime files. This can cause a later invocation of jupyter to try connecting to a non-existent kernel or to use an invalid token when connecting to an existing kernel. - Marc On Tuesday, April 23, 2024 at 11:31:38 PM UTC-5 S Benton wrote: > An enormous and sincere thank you to all of you! I will make sure her mac > os is updated and have her remove the above directories/files. Hopefully > that will do the trick, but if not I will open an issue at github. And yes > - she tried Cocalc and it got her able to submit her assignment tonight, at > least! > > Thank you again!!! > > On Tuesday, April 23, 2024 at 6:58:30 PM UTC-4 Marc Culler wrote: > >> The 10.3 version of the app uses the standard location for Jupyter >> runtime files: ~/Library/Jupyter >> >> - Marc >> >> On Tuesday, April 23, 2024 at 5:08:43 PM UTC-5 Dima Pasechnik wrote: >> >>> PS. From what I see on >>> https://github.com/3-manifolds/Sage_macOS/issues/28 >>> I gather you might try to remove (or better, rename, to be on the safe >>> side) the folders >>> >>> ~/Library/Application Support/SageMath/*/Jupyter >>> >>> in other to be able to start Jupyter again. >>> >>> >>> >>> >>> On Tue, Apr 23, 2024 at 10:57 PM Dima Pasechnik <dim...@gmail.com> >>> wrote: >>> > >>> > On Tue, Apr 23, 2024 at 10:29 PM S Benton <brent...@gmail.com> wrote: >>> > >>> > > We are not using the app. She downloaded SageMath-10.3_arm64.dmg >>> from github., double clicked the executable and followed the installation >>> instructions. To launch, she clicks the SageMath-10-3 icon along the bottom >>> of her mac. This gives her the option to open Jupyter Notebook, which she >>> does, using the SageMath kernel. >>> > >>> > OK. What macOS version do you run? >>> > Do you have all the updates installed ? (you should) >>> > >>> > > >>> > > She has a 3 year old mac and I'm wondering if it just doesn't have >>> the processing power it needs to do these more intensive mathematical >>> computations. (plus she probably has other stuff up on her computer) So >>> when Jupyter Lab konks out, she is unable to restart it. Even if she >>> reboots her computer, when she tries to relaunch from the SageMath icon, >>> she gets the Local host Error connection refused. She looks in Activity >>> Monitor and says she has killed all of the python processes, but still >>> cannot launch SageMath. >>> > >>> > it's most probably a stale "lock" file, just a file created by a >>> > process to indicate that it's running; such a file is cleaned on a >>> > normal exit, >>> > but not in case of a crash. >>> > >>> > I must say I don't know much about this app, I'll cc to one of the >>> authors. >>> > >>> > Marc, could you have a look? >>> > >>> > The app has a dedicated issue tracker: >>> > https://github.com/3-manifolds/Sage_macOS/issues >>> > it might be better to report there. >>> > >>> > > >>> > > The last time this happened we removed and then reinstalled >>> SageMath. But that's a tough way to keep things moving. I'm wondering if >>> when Jupyter Lab dies, if there are files that live on and make it so that >>> she cannot relaunch. We have not been able to find, or just lack the skills >>> to find, where any of these files might be located. I tried to run >>> "jupyter" commands from the terminal, but they come back as unknown and >>> searching through "finder" on the mac is not getting us anywhere. >>> > > >>> > > Short of buying a new computer or continuing to reinstall SageMath, >>> I'm wondering if there is a simpler of way of getting things up and running >>> again for her. >>> > > >>> > Certainly a 3 y.o. machine is more than enough to run Sage, it's some >>> > kind of software glitch, I suppose. >>> > I'm running Sage (and writing this email from a 7 y.o. machine just >>> fine). >>> > >>> > A quick way to run Sage is to use https://cocalc.com >>> > (you can upload Jupyter notebooks there to run; you can even use it >>> for free, >>> > but to make it run better you'd need to pay something like $7 per >>> month) >>> > >>> > There are several other ways to run Sage locally on your mac, >>> > but let's try things in turn first. >>> > >>> > Hope this helps, >>> > Dima >>> > >>> > > Thank you so much for responding. It is deeply appreciated. >>> > > >>> > > >>> > > >>> > > On Tuesday, April 23, 2024 at 4:05:17 PM UTC-4 Dima Pasechnik wrote: >>> > >> >>> > >> Hi, >>> > >> >>> > >> please tell us more about the Sage version, and how you installed >>> it, and how you launch the notebook. >>> > >> >>> > >> Do you use the Sagemath macOS app? >>> > >> >>> > >> >>> > >> Dima >>> > >> >>> > >> >>> > >> On 23 April 2024 20:05:12 BST, S Benton <brent...@gmail.com> >>> wrote: >>> > >>> >>> > >>> Hi - at my wit's end here - my daughter is trying to use Sage Math >>> Jupyter Notebook for her college coursework. She has had problems where if >>> Notebook crashes, she is unable to relaunch it - she gets a "connection >>> refused" error and it mentions Local Host 8888. Last time, we reinstalled >>> everything and she was able to get up and running again. However, this >>> keeps happening. >>> > >>> >>> > >>> I am wondering if - when Notebook crashes - if there are still >>> processes running out there that are preventing her from relaunching a new >>> instance of Notebook. She is on a mac, and I'm trying to find the commands >>> or directories where these processes or files might stored so that I can >>> remove them. >>> > >>> >>> > >>> I am not able to use any of the "Jupyter" commands from the mac >>> command line to see what is running. Does anyone have any help they can >>> offer on why this might be happening and how i can get her up and running >>> again? >>> > >>> >>> > >>> Many thanks >>> > > >>> > > -- >>> > > You received this message because you are subscribed to the Google >>> Groups "sage-support" group. >>> > > To unsubscribe from this group and stop receiving emails from it, >>> send an email to sage-support...@googlegroups.com. >>> > > To view this discussion on the web visit >>> https://groups.google.com/d/msgid/sage-support/12aa12b6-1574-46d8-99b8-f6d72252166an%40googlegroups.com. >>> >>> >>> >> -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/b3a9433e-eef8-4d67-a10f-b29f4dae1b39n%40googlegroups.com.
