[O] ob-ipyton ImportError: No module named 'jupyter_client'

[Uwe Brauer]

Hi 


I opened an issue on https://github.com/gregsexton/ob-ipython/issues/186 
about the following problem I am facing, but maybe somebody on the list,
in a similar environment  has solved it already and that is why I post
it here.


I am running Ubuntu 16.04, upgraded to pip 9.03 (because pip 10 has a
bug), running emacs git master from June.

I installed your package via melpa, then 
I installed, via pip, the matlab kernel and the jupyter client. Both are
in 
  /usr/local/lib/python2.7/dist-packages

  drwxrwsr-x 40 root staff 4.0K Jul  2 11:26 .
  drwxr-sr-x  2 root staff 4.0K Jul  2 11:26 matlab_kernel
  drwxr-sr-x  2 root staff 4.0K Jul  2 11:26 matlab_kernel-0.15.1.dist-info
  drwxr-sr-x  6 root staff 4.0K Jul  2 11:26 metakernel
  drwxr-sr-x  2 root staff 4.0K Jul  2 11:26 metakernel-0.20.14.dist-info
  drwxr-sr-x  2 root staff 4.0K Jul  2 11:26 ipykernel-4.8.2.dist-info
  drwxr-sr-x  8 root staff 4.0K Jul  2 11:26 ipykernel
  -rw-r--r--  1 root staff  552 Jul  2 11:26 ipykernel_launcher.pyc
  drwxr-sr-x  2 root staff 4.0K Jul  2 11:26 ipython-5.7.0.dist-info
  drwxr-sr-x 11 root staff 4.0K Jul  2 11:26 IPython
  drwxr-sr-x  5 root staff 4.0K Jul  2 11:26 jupyter_client
  drwxr-sr-x  2 root staff 4.0K Jul  2 11:26 jupyter_client-5.2.3.dist-info




Now following the advice of John Kitchin, I try to execute the following
code

#+BEGIN_SRC emacs-lisp
(add-to-list 'org-src-lang-modes '("matlab" . matlab))

;; set default headers for convenience
(setq org-babel-default-header-args:matlab
      '((:results . "output replace")
        (:session . "matlab")
        (:kernel . "matlab")
        (:exports . "code")
        (:cache .   "no")
        (:noweb . "no")
        (:hlines . "no")
        (:tangle . "no")))

(defalias 'org-babel-execute:matlab 'org-babel-execute:ipython)
(defalias 'org-babel-prep-session:matlab 'org-babel-prep-session:ipython)
(defalias 'org-babel-matlab-initiate-session 
'org-babel-ipython-initiate-session)
#+END_SRC


#+RESULTS:
: org-babel-matlab-initiate-session

#+BEGIN_SRC matlab :results output org drawer
x = [1, 2, 3, 4, 5];
fprintf('|%d', x)
#+END_SRC

But I obtain the following error in the debug buffer 

Traceback (most recent call last):
  File "/home/oub/.emacs.d/elpa/ob-ipython-20180224.153/client.py", line 1, in 
<module>
    import jupyter_client as client
ImportError: No module named 'jupyter_client'

I also tried the example provided in
https://github.com/gregsexton/ob-ipython
but the result was the same.


So how shall I modify that line in the client.py?

Thanks and regards


Uwe Brauer