Hi Chris, yes, the command you suggest starts the J command line interpreter. I agree that it looks like a Python problem, but:
1. I'd expect the JDemo installation to use its own python interpreter and packages rather than the system-wide one 2. in any case, my python 3.6.9 installation works fine, both from the command line and from my own jupyter install. Maybe a list of required packages would help? Thx, Francesco On Sun, Aug 23, 2020 at 9:00 PM chris burke <[email protected]> wrote: > 1. Can you confirm that J does run on your machine, i.e. the following > should load J; > > ../JDemo/J805/bin/jconsole > > 2. Line 19 has "ModuleNotFoundError: No module named 'contextvars'" > > This looks like a Python problem, perhaps a mismatch between the > download and your local copy of python? > > The download is a little old and may need updating. > > On Sat, Aug 22, 2020 at 10:41 AM Francesco Pedulla' <[email protected]> > wrote: > > > > Dear all, > > I cannot run J in a Jupyter notebook. > > Following the instructions at > > https://code.jsoftware.com/wiki/Guides/Jupyter, I: > > > > 1. downloaded the 64bit compressed tar file for Linux > > 2. unpacked it under my home directory on a Ubuntu 18 desktop machine > > 3. cd to the new directory (/home/francesco/JDemo) > > 4. run the jupyter-notebook.sh script > > 5. in the freshly opened browser window (http://localhost:8888/tree), > > selected New->J > > 6. waited while the kernel was starting and jupyter tried to connect > to > > it > > 7. give up after jupyter repeatedly failed to connect to the J kernel > > (see attached stderr output). > > > > The error about the NaCl helper process at line 10 shows up also in > another > > installation of jupyter, on the same machine, where both python and > > sagemath run fine. Hence, I believe it should be the reason for the > > failure. > > Error on line 19 looks more promising, but I am not sure how to interpret > > it - even less how to fix it. > > Any hint? > > Thanks in advance, > > > > Francesco > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
