At some level the problem is that the Tornado web application used by Jupyter is returning a 404 when the client tries to load:
http://localhost:8888/nbextensions/widgets/notebook/js/extension.js?v=20220201102631 I have no clue how the Tornado web application tries to translate that URL into a path to a static file named extension.js. But that file does exist. The difference between 9.4 and 9.5 with respect to that file is that it moved from local/share to venv/share. So I would guess that there is some part of how Jupyter configures its Tornado web application which was not correctly adjusted to compensate for that change. - Marc On Tuesday, February 1, 2022 at 9:13:27 AM UTC-6 Marc Culler wrote: > Thanks. And I can reproduce this. I see the error shown below in the > Firefox Console. (I include it > here in case anyone might recognize it). > > - Marc > > Could not open comm -- Error: Class jupyter.widget not found in registry > utils.js:930 > load_class utils.js:894 > load_class utils.js:879 > comm_open comm.js:84 > i jQuery > _handle_iopub_message kernel.js:1238 > _finish_ws_message kernel.js:1017 > _msg_queue kernel.js:1008 > promise callback*Kernel.prototype._handle_ws_message kernel.js:1008 > i jQuery > reject utils.js:930 > (Async: promise callback) > comm_open comm.js:85 > i jQuery > _handle_iopub_message kernel.js:1238 > _finish_ws_message kernel.js:1017 > _msg_queue kernel.js:1008 > (Async: promise callback) > _handle_ws_message kernel.js:1008 > i jQuery > > > On Tuesday, February 1, 2022 at 5:32:23 AM UTC-6 alan_thoma...@yahoo.co.uk > wrote: > >> I have run the Recommended_9_5.pkg file. >> >> On Monday, January 31, 2022 at 5:51:38 PM UTC Marc Culler wrote: >> >>> It sounds to me like you do not have the SageMath 9.5 Jupyter kernel >>> installed in /usr/local. That gets installed when you run the Installer >>> package that is included on the disk image. Did you perhaps forget to run >>> that installer after dragging the app to /Applications? >>> >>> - Marc >>> >>> On Monday, January 31, 2022 at 9:09:42 AM UTC-6 >>> alan_thoma...@yahoo.co.uk wrote: >>> >>>> >>>> I have downloaded both the SageMath 9.5 beta and 9.4 SageMath releases >>>> from git. I do not get widgets should I start the 9.4 or 9.5 kernel using >>>> the 9.5 interface, but I do when I use the 9.4 interface. >>>> On Monday, January 31, 2022 at 12:45:31 PM UTC dim...@gmail.com wrote: >>>> >>>>> On Mon, Jan 31, 2022 at 3:59 AM 'Alan Stafford' via sage-support >>>>> <sage-s...@googlegroups.com> wrote: >>>>> > >>>>> > I have found that it doesn't work if I launch from the SageMath 9.5 >>>>> icon for any kernel 9.4 or 9.5. If I launch from the SageMath 9.4 >>>>> interface >>>>> it works for either kernel. >>>>> >>>>> I am not sure I follow here. How do you install Sage? >>>>> >>>>> The basic thing that should work is starting Sage from terminal, as >>>>> >>>>> sage -n >>>>> >>>>> The macOS GUI we used to have is quite broken, and was removed, the >>>>> one we currently recommend is >>>>> https://github.com/3-manifolds/Sage_macOS/releases >>>>> >>>>> >>>>> > >>>>> >>> >>>>> >>> >>>>> > -- >>>>> > 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/7b98180b-e489-411b-a046-a8f30269d3f2n%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/a6cf9a86-7ec4-4243-9855-3e7bbe514643n%40googlegroups.com.
