Wolfram Repl Fails to Print Results

[georgewsinger]

After running jupyter-run-repl and selecting Wolfram Language 12.0:

Is this the expected behavior?

[nnicandro]

I don't think so.

Can you copy the following code

(let ((jupyter--debug t))
  (jupyter-repl-replace-cell-code "plt.plot([1, 2, 3])")
  (jupyter-repl-ret)
  (sleep-for 2))

and inside the REPL buffer type M-: C-y RET, then paste what was printed in the *Messages* buffer here. There should be a whole bunch of lines like

SENDING: :execute-request 0acd2760-8549-43fa-9825-5a058017b854 (:code plt.plot([1, 2, 3]) :silent :json-false :store_history t :user_expressions #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data ()) :allow_stdin t :stop_on_error :json-false)
SENT: (:shell 0acd2760-8549-43fa-9825-5a058017b854)
MESSAGE: (:iopub :status (:execution_state busy))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:iopub :execute-input (:code plt.plot([1, 2, 3]) :execution_count 18))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:iopub :execute-result (:data (:text/plain [<matplotlib.lines.Line2D at 0x7fd9cc2eae10>]) :metadata nil :execution_count 18))
...

[georgewsinger]

Doing so yields

and in the *Messages* buffer:

Done.
jupyter-start-kernel: default-directory = /home/george/.dotfiles/
jupyter-start-kernel: Starting process with args "/nix/store/hcs22wc96vmsbqgbz8a2lg8jnjylgwis-wolfram-desktop-12.0.0/libexec/Mathematica/Executables/WolframKernel -script /home/george/.WolframDesktop/Paclets/Repository/WolframLanguageForJupyter-0.9.2/Resources/KernelForWolframLanguageForJupyter.wl /run/user/1000/jupyter/emacs-kernel-Dmje3J.json"
Starting wolframlanguage12 kernel process...done
SENDING: :kernel-info-request e4bc6f98-2017-4c9a-ab2b-5075fbbb5d2f nil
SENT: (:shell e4bc6f98-2017-4c9a-ab2b-5075fbbb5d2f)
MESSAGE: (:iopub :status (:execution_state busy))
MESSAGE: (:shell :kernel-info-reply (:protocol_version 5.3.0 :implementation WolframLanguageForJupyter :implementation_version 0.0.1 :language_info (:name Wolfram Language :version 12.0 :mimetype application/vnd.wolfram.m :file_extension .m :pygments_lexer mathematica :codemirror_mode mathematica) :banner Wolfram Language/Wolfram Engine Copyright 2019))
MESSAGE: (:iopub :status (:execution_state idle))
Requesting kernel info...done
SENDING: :history-request cbb0689b-a416-4e29-9fe5-eb422865fbbd (:output :json-false :raw :json-false :hist_access_type tail :n 100)
SENDING: :execute-request 93342f47-1321-4e1d-8fb9-cd4847efb68f (:code  :silent t :store_history t :user_expressions #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data ()) :allow_stdin t :stop_on_error :json-false)
SENT: (:shell cbb0689b-a416-4e29-9fe5-eb422865fbbd)
SENT: (:shell 93342f47-1321-4e1d-8fb9-cd4847efb68f)
MESSAGE: (:iopub :status (:execution_state busy))
MESSAGE: (:shell :execute-reply (:status ok :execution_count 1 :user_expressions [] :payload []))
MESSAGE: (:iopub :status (:execution_state idle))
DROPPING-REQ: e4bc6f98-2017-4c9a-ab2b-5075fbbb5d2f
SENDING: :is-complete-request 84885cb4-3baa-434d-b139-4c945cff11f9 (:code 2)
SENT: (:shell 84885cb4-3baa-434d-b139-4c945cff11f9)
MESSAGE: (:iopub :status (:execution_state busy))
MESSAGE: (:shell :is-complete-reply (:status complete))
RUN-HOOK: jupyter-shell-message-hook
MESSAGE: (:iopub :status (:execution_state idle))
DROPPING-REQ: 93342f47-1321-4e1d-8fb9-cd4847efb68f
SENDING: :execute-request 4dfd124d-b45b-4bd3-a692-072c56e4c606 (:code 2 :silent :json-false :store_history t :user_expressions #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data ()) :allow_stdin t :stop_on_error :json-false)
SENT: (:shell 4dfd124d-b45b-4bd3-a692-072c56e4c606)
MESSAGE: (:iopub :status (:execution_state busy))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:shell :execute-reply (:status ok :execution_count 2 :user_expressions [] :payload []))
RUN-HOOK: jupyter-shell-message-hook
MESSAGE: (:iopub :execute-result (:execution_count 2 :data (:text/html  :text/plain 2) :metadata (:text/html [] :text/plain [])))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:iopub :status (:execution_state idle))
RUN-HOOK: jupyter-iopub-message-hook
DROPPING-REQ: 84885cb4-3baa-434d-b139-4c945cff11f9
SENDING: :is-complete-request 2401546b-e50c-4c5f-a0cf-445dae1437ae (:code plt.plot([1, 2, 3]))
SENT: (:shell 2401546b-e50c-4c5f-a0cf-445dae1437ae)
MESSAGE: (:iopub :status (:execution_state busy))
MESSAGE: (:shell :is-complete-reply (:status invalid))
RUN-HOOK: jupyter-shell-message-hook
MESSAGE: (:iopub :status (:execution_state idle))
DROPPING-REQ: 4dfd124d-b45b-4bd3-a692-072c56e4c606
SENDING: :execute-request c882b383-c94e-41bb-ad12-26643d675d53 (:code plt.plot([1, 2, 3]) :silent :json-false :store_history t :user_expressions #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data ()) :allow_stdin t :stop_on_error :json-false)
SENT: (:shell c882b383-c94e-41bb-ad12-26643d675d53)
MESSAGE: (:iopub :error (:ename ToExpression::sntx :evalue Invalid syntax in or before "plt.plot([1, 2, 3])".
                                       ^ :traceback [�[0;31mToExpression::sntx: Invalid syntax in or before "plt.plot([1, 2, 3])".
                                                           ^
�[0m]))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:iopub :status (:execution_state busy))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:shell :execute-reply (:status ok :execution_count 3 :user_expressions [] :payload []))
RUN-HOOK: jupyter-shell-message-hook
MESSAGE: (:iopub :execute-result (:execution_count 3 :data (:text/html  :text/plain $Failed) :metadata (:text/html [] :text/plain [])))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:iopub :status (:execution_state idle))
RUN-HOOK: jupyter-iopub-message-hook
DROPPING-REQ: 2401546b-e50c-4c5f-a0cf-445dae1437ae
nil

[nnicandro]

Whoops, I meant to replace plt.plot([1, 2, 3]) with Plot[Sin[x], {x, 0, 1}].
So

(let ((jupyter--debug t))
  (jupyter-repl-replace-cell-code "Plot[Sin[x], {x, 0, 1}]")
  (jupyter-repl-ret)
  (sleep-for 2))

Could you retry with the above code.

[georgewsinger]

Here's the corrected test:

Starting wolframlanguage12 kernel process...done
Requesting kernel info...done
SENDING: :is-complete-request c8767e06-2b36-4dcb-a3ab-0fc0e25c9513 (:code Plot[Sin[x], {x, 0, 1}])
SENT: (:shell c8767e06-2b36-4dcb-a3ab-0fc0e25c9513)
MESSAGE: (:iopub :status (:execution_state busy))
MESSAGE: (:shell :is-complete-reply (:status complete))
RUN-HOOK: jupyter-shell-message-hook
MESSAGE: (:iopub :status (:execution_state idle))
DROPPING-REQ: 02681545-240d-4541-8e0b-647d8f7ca3ab
SENDING: :execute-request ab1f19cd-cca9-447d-8374-c0203c131b12 (:code Plot[Sin[x], {x, 0, 1}] :silent :json-false :store_history t :user_expressions #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data ()) :allow_stdin t :stop_on_error :json-false)
SENT: (:shell ab1f19cd-cca9-447d-8374-c0203c131b12)
MESSAGE: (:iopub :status (:execution_state busy))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:shell :execute-reply (:status ok :execution_count 2 :user_expressions [] :payload []))
RUN-HOOK: jupyter-shell-message-hook
MESSAGE: (:iopub :execute-result (:execution_count 2 :data (:text/html  :text/plain -Graphics-) :metadata (:text/html [] :text/plain [])))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:iopub :status (:execution_state idle))
RUN-HOOK: jupyter-iopub-message-hook
DROPPING-REQ: c8767e06-2b36-4dcb-a3ab-0fc0e25c9513
nil

[nnicandro]

It doesn't look like the kernel sent the text/html representation of the results

MESSAGE: (:iopub :execute-result (:execution_count 2 :data (:text/html  :text/plain -Graphics-) :metadata (:text/html [] :text/plain [])))

otherwise you should see something as the value of the :text/html field. It looks like the empty string is being returned as the value which is why nothing gets printed.

Does the graph show up when you run the cell in a regular Jupyter notebook?

[georgewsinger]

If I open a console REPL it shows up as -Graphics-. If I open a web browser REPL it shows up as the actual graphic. But note I'm seeing results for any return values (plots or not). As in 2+2 also doesnt print in emacs ( but it does print in the console REPL).

[nnicandro]

I didn't notice the 2+2 case, could you also show what is printed to *Messages* when you replace "Plot[Sin[x], {x, 0, 1}]" with 2+2 in the code that I gave you.

Could you also show the kernelspec being used, e.g. by showing the result of

(cl-prettyprint (jupyter-available-kernelspecs))

[georgewsinger]

For 2+2:

SENDING: :is-complete-request b9b3d5a9-d0f8-4620-bf7e-3f72e319aa02 (:code 2+2)
SENT: (:shell b9b3d5a9-d0f8-4620-bf7e-3f72e319aa02)
MESSAGE: (:iopub :status (:execution_state busy))
MESSAGE: (:shell :is-complete-reply (:status complete))
RUN-HOOK: jupyter-shell-message-hook
MESSAGE: (:iopub :status (:execution_state idle))
DROPPING-REQ: 09c6acda-f35f-4547-b52e-47db1bb5f505
SENDING: :execute-request 2abaeb0d-cff6-4904-b5af-911ecd9ba814 (:code 2+2 :silent :json-false :store_history t :user_expressions #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data ()) :allow_stdin t :stop_on_error :json-false)
SENT: (:shell 2abaeb0d-cff6-4904-b5af-911ecd9ba814)
MESSAGE: (:iopub :status (:execution_state busy))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:shell :execute-reply (:status ok :execution_count 2 :user_expressions [] :payload []))
RUN-HOOK: jupyter-shell-message-hook
MESSAGE: (:iopub :execute-result (:execution_count 2 :data (:text/html  :text/plain 4) :metadata (:text/html [] :text/plain [])))
RUN-HOOK: jupyter-iopub-message-hook
MESSAGE: (:iopub :status (:execution_state idle))
RUN-HOOK: jupyter-iopub-message-hook
DROPPING-REQ: b9b3d5a9-d0f8-4620-bf7e-3f72e319aa02

Kernelspec:

(("jwls" "/home/george/.local/share/jupyter/kernels/jwls"
 :argv
 ["/nix/store/vp7mwr3wx0a8a6bg7ifg9iq1wk6n0w6j-python3-3.6.8/bin/python" "-m" "JWLS_kernel" "-f" "{connection_file}"]
 :env
 (:PS1 "$")
 :display_name
 "JWLS"
 :language
 "mathematica"
 :interrupt_mode
 "signal"
 :metadata
 nil)
 ("wolframlanguage12" "/home/george/.local/share/jupyter/kernels/wolframlanguage12"
 :argv
 ["/nix/store/hcs22wc96vmsbqgbz8a2lg8jnjylgwis-wolfram-desktop-12.0.0/libexec/Mathematica/Executables/WolframKernel" "-script" "/home/george/.WolframDesktop/Paclets/Repository/WolframLanguageForJupyter-0.9.2/Resources/KernelForWolframLanguageForJupyter.wl" "{connection_file}"]
 :env
 nil
 :display_name
 "Wolfram Language 12"
 :language
 "Wolfram Language"
 :interrupt_mode
 "signal"
 :metadata
 nil)
 ("python3" "/nix/store/l3ljb1s9663fymipbz2k4a088w59k1zf-python3-3.6.8-env/share/jupyter/kernels/python3"
 :argv
 ["python" "-m" "ipykernel_launcher" "-f" "{connection_file}"]
 :env
 nil
 :display_name
 "Python 3"
 :language
 "python"
 :interrupt_mode
 "signal"
 :metadata
 nil))

[nnicandro]

OK, thanks. I think I know what the issue is with not displaying anything when you type 2+2 and why -Graphics- doesn't show up either in the plot case.

But I'm still confused why the kernel would return an empty HTML representation for the plot since you said a plot was displayed in the web browser. Just to be clear, your saying that the plot is displayed when you start a notebook using something like the jupyter notebook shell command right?

[nnicandro]

Also I noticed that you are using Nix, do you have any suggestions for how to solve #196.

[georgewsinger]

@DZoP I just replied to #196.

Also, yes, to be clear the plot is displaying in a browser when using jupyter notebook (as are other return values, like 2+2).

[nnicandro]

Can you check if #229 at least allows you to see something when you enter 2+2.

You will have to upgrade emacs-jupyter first.