Re: [O] Possible bug on ob-python.el

[drymer]

Ignore this, I misunderstood some things and it works ok now.

On Thu, Sep 29, 2016 at 11:47:13PM +0200, drymer wrote:
> Hi,
>
> I'm not sure if it's a bug or if it's something I have missconfigured, but 
> there it goes.
>
> I'm using maint Org-mode version 8.3.6, release_8.3.6-4-g4835be.dirty. The init 
> file I'm using to debug is:
>
> #+BEGIN_SRC emacs-lisp
> (add-to-list 'load-path "~/.emacs.d/lisp/org-mode/lisp/")
> (add-to-list 'load-path "~/.emacs.d/elpa/python-mode-20160114.2307/")
> (require 'python-mode)
> (require 'org)
> (setq py-shell-name "/usr/local/bin/python3")
> (setq org-babel-python-mode 'python-mode)
>
> (org-babel-do-load-languages
> 'org-babel-load-languages
> '((python . t)))
> #+END_SRC
>
> I have a tree with the SESSION propertie set to "exercici". Under that tree, 
> two source blocks:
>
> #+BEGIN_SRC python
> import base64
> #+END_SRC
>
> #+BEGIN_SRC python
> hex_string = 
> "49276d206b696c6c696e6720796f757220627261696e206c696b65206120706f69736f6e6f7573206d757368726f6f6d"
> print(base64.b64encode(bytes(hex_string)))
> #+END_SRC
>
> When evaluating the first one, in the message buffer appears: "if: Buffer *Python-set* does not exist or has no 
> process". Also, a buffer called "*ulb Python3*" has appeared. What it seems to happen is that the 
> "ulb" buffer is created instead of the one called "Python-$sessionName". It only happens when using 
> python-mode set on 'org-babel-load-languages.
>
> I'll add the complete backtrace at the end of the e-mail. If I can add more 
> information, just ask for it.
>
> Thanks
>
> #+BEGIN_SRC emacs-lisp
> Debugger entered--Lisp error: (error "Buffer *Python-set* does not exist or has no 
> process")
> signal(error ("Buffer *Python-set* does not exist or has no process"))
> error("Buffer %s does not exist or has no process" "*Python-set*")
> (if (org-babel-comint-buffer-livep session) nil (error "Buffer %s does not exist or 
> has no process" session))
> (progn (if (org-babel-comint-buffer-livep session) nil (error "Buffer %s does not 
> exist or has no process" session)) (let ((save-match-data-internal (match-data))) 
> (unwind-protect (progn (save-current-buffer (set-buffer session) (let 
> ((comint-input-filter ...)) (let* (... ... dangling-text raw) (goto-char ...) (let ... 
> ... ...) (let ... ... ... ... ... ... ...) (while ... ...) (goto-char ...) (insert 
> dangling-text) (if ... ...) (split-string string-buffer comint-prompt-regexp))))) 
> (set-match-data save-match-data-internal (quote evaporate)))))
> (let ((tmp-file (org-babel-temp-file "python-"))) (progn (if 
> (org-babel-comint-buffer-livep session) nil (error "Buffer %s does not exist or has no 
> process" session)) (let ((save-match-data-internal (match-data))) (unwind-protect (progn 
> (save-current-buffer (set-buffer session) (let (...) (let* ... ... ... ... ... ... ... ... ...)))) 
> (set-match-data save-match-data-internal (quote evaporate))))) (org-babel-eval-read-file tmp-file))
> (cond ((eql result-type (quote output)) (mapconcat (function org-babel-trim) (butlast (progn (if 
> (org-babel-comint-buffer-livep session) nil (error "Buffer %s does not exist or has no process" session)) 
> (let ((save-match-data-internal ...)) (unwind-protect (progn ...) (set-match-data save-match-data-internal ...)))) 2) 
> "\n")) ((eql result-type (quote value)) (let ((tmp-file (org-babel-temp-file "python-"))) (progn 
> (if (org-babel-comint-buffer-livep session) nil (error "Buffer %s does not exist or has no process" session)) 
> (let ((save-match-data-internal (match-data))) (unwind-protect (progn (save-current-buffer ... ...)) (set-match-data 
> save-match-data-internal (quote evaporate))))) (org-babel-eval-read-file tmp-file))))
> (let* ((send-wait (function (lambda nil (comint-send-input nil t) (sleep-for 0 5)))) 
> (dump-last-value (function (lambda (tmp-file pp) (mapc (function (lambda ... ... ...)) (if pp 
> (list "import pprint" ...) (list ...)))))) (input-body (function (lambda (body) 
> (mapc (function (lambda ... ... ...)) (split-string body "[
\n]")) (funcall send-wait)))) (results (cond ((eql result-type (quote output)) (mapconcat (function org-babel-trim) (butlast (progn ... ...) 2) 
"\n")) ((eql result-type (quote value)) (let ((tmp-file ...)) (progn (if ... nil ...) (let ... ...)) (org-babel-eval-read-file tmp-file)))))) (if (string= 
(substring org-babel-python-eoe-indicator 1 -1) results) nil (let ((--params result-params)) (if (member "none" --params) nil (if (or (member 
"scalar" --params) (member "verbatim" --params) (member "html" --params) (member "code" --params) (member "pp" 
--params) (member "file" --params) (and (or ... ... ... ...) (not ...))) results (org-babel-python-table-or-string results))))))
> org-babel-python-evaluate-session("*Python-set*" "import base64" value 
> ("replace"))
> (if session (org-babel-python-evaluate-session session body result-type 
> result-params) (org-babel-python-evaluate-external-process body result-type 
> result-params preamble))
> org-babel-python-evaluate("*Python-set*" "import base64" value ("replace") nil)
> (let* ((session (org-babel-python-initiate-session (cdr (assoc :session params)))) (result-params 
> (cdr (assoc :result-params params))) (result-type (cdr (assoc :result-type params))) (return-val 
> (if (and (eq result-type (quote value)) (not session)) (progn (cdr (assoc :return params))))) 
> (preamble (cdr (assoc :preamble params))) (org-babel-python-command (or (cdr (assoc :python 
> params)) org-babel-python-command)) (full-body (org-babel-expand-body:generic (concat body (if 
> return-val (format "\nreturn %s" return-val) "")) params 
> (org-babel-variable-assignments:python params))) (result (org-babel-python-evaluate session 
> full-body result-type result-params preamble))) (org-babel-reassemble-table result 
> (org-babel-pick-name (cdr (assoc :colname-names params)) (cdr (assoc :colnames params))) 
> (org-babel-pick-name (cdr (assoc :rowname-names params)) (cdr (assoc :rownames params)))))
> org-babel-execute:python("import base64" ((:comments . "") (:shebang . "") (:cache . "no") (:padline . "") (:noweb . "no") (:tangle . 
> "no") (:exports . "code") (:results . "replace") (:hlines . "no") (:session . "set") (:result-type . value) (:result-params "replace") 
> (:rowname-names) (:colname-names)))
> org-babel-execute-src-block(nil)
> org-babel-execute-src-block-maybe()
> org-babel-execute-maybe()
> org-babel-execute-safely-maybe()
> run-hook-with-args-until-success(org-babel-execute-safely-maybe)
> org-ctrl-c-ctrl-c(nil)
> funcall-interactively(org-ctrl-c-ctrl-c nil)
> call-interactively(org-ctrl-c-ctrl-c nil nil)
> command-execute(org-ctrl-c-ctrl-c)
> #+END_SRC

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