mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-08-26 05:02:53 +00:00
2010-08-03 Dan Davison <davison@stats.ox.ac.uk> * ob-python.el (org-babel-python-table-or-string): Fix recognition of lists and tuples Prior to this we had #+begin_src python return [1, 2] #+end_src #+results: : [1, 2]
276 lines
9.9 KiB
EmacsLisp
276 lines
9.9 KiB
EmacsLisp
;;; ob-python.el --- org-babel functions for python evaluation
|
|
|
|
;; Copyright (C) 2009, 2010 Free Software Foundation
|
|
|
|
;; Author: Eric Schulte, Dan Davison
|
|
;; Keywords: literate programming, reproducible research
|
|
;; Homepage: http://orgmode.org
|
|
;; Version: 7.01trans
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;; Org-Babel support for evaluating python source code.
|
|
|
|
;;; Code:
|
|
(require 'ob)
|
|
(require 'ob-ref)
|
|
(require 'ob-comint)
|
|
(require 'ob-eval)
|
|
(eval-when-compile (require 'cl))
|
|
|
|
(declare-function org-remove-indentation "org" )
|
|
(declare-function py-shell "ext:python-mode" (&optional argprompt))
|
|
(declare-function run-python "ext:python" (&optional cmd noshow new))
|
|
|
|
(add-to-list 'org-babel-tangle-lang-exts '("python" . "py"))
|
|
|
|
(defvar org-babel-default-header-args:python '())
|
|
|
|
(defvar org-babel-python-command "python"
|
|
"Name of command for executing python code.")
|
|
|
|
(defvar org-babel-python-mode (if (featurep 'xemacs) 'python-mode 'python)
|
|
"Preferred python mode for use in running python interactively.")
|
|
|
|
(defun org-babel-expand-body:python (body params &optional processed-params)
|
|
"Expand BODY according to PARAMS, return the expanded body."
|
|
(concat
|
|
(mapconcat ;; define any variables
|
|
(lambda (pair)
|
|
(format "%s=%s"
|
|
(car pair)
|
|
(org-babel-python-var-to-python (cdr pair))))
|
|
(nth 1 (or processed-params (org-babel-process-params params))) "\n")
|
|
"\n" (org-babel-trim body) "\n"))
|
|
|
|
(defun org-babel-execute:python (body params)
|
|
"Execute a block of Python code with Babel.
|
|
This function is called by `org-babel-execute-src-block'."
|
|
(let* ((processed-params (org-babel-process-params params))
|
|
(session (org-babel-python-initiate-session (first processed-params)))
|
|
(result-params (nth 2 processed-params))
|
|
(result-type (nth 3 processed-params))
|
|
(full-body (org-babel-expand-body:python
|
|
body params processed-params))
|
|
(result (org-babel-python-evaluate
|
|
session full-body result-type result-params)))
|
|
(or (cdr (assoc :file params))
|
|
(org-babel-reassemble-table
|
|
result
|
|
(org-babel-pick-name (nth 4 processed-params)
|
|
(cdr (assoc :colnames params)))
|
|
(org-babel-pick-name (nth 5 processed-params)
|
|
(cdr (assoc :rownames params)))))))
|
|
|
|
(defun org-babel-prep-session:python (session params)
|
|
"Prepare SESSION according to the header arguments in PARAMS."
|
|
(let* ((session (org-babel-python-initiate-session session))
|
|
(vars (org-babel-ref-variables params))
|
|
(var-lines (mapcar ;; define any variables
|
|
(lambda (pair)
|
|
(format "%s=%s"
|
|
(car pair)
|
|
(org-babel-python-var-to-python (cdr pair))))
|
|
vars)))
|
|
(org-babel-comint-in-buffer session
|
|
(mapc (lambda (var)
|
|
(end-of-line 1) (insert var) (comint-send-input)
|
|
(org-babel-comint-wait-for-output session)) var-lines))
|
|
session))
|
|
|
|
(defun org-babel-load-session:python (session body params)
|
|
"Load BODY into SESSION."
|
|
(save-window-excursion
|
|
(let ((buffer (org-babel-prep-session:python session params)))
|
|
(with-current-buffer buffer
|
|
(goto-char (process-mark (get-buffer-process (current-buffer))))
|
|
(insert (org-babel-chomp body)))
|
|
buffer)))
|
|
|
|
;; helper functions
|
|
|
|
(defun org-babel-python-var-to-python (var)
|
|
"Convert an elisp value to a python variable.
|
|
Convert an elisp value, VAR, into a string of python source code
|
|
specifying a variable of the same value."
|
|
(if (listp var)
|
|
(concat "[" (mapconcat #'org-babel-python-var-to-python var ", ") "]")
|
|
(if (equal var 'hline)
|
|
"None"
|
|
(format
|
|
(if (and (stringp var) (string-match "[\n\r]" var)) "\"\"%S\"\"" "%S")
|
|
var))))
|
|
|
|
(defun org-babel-python-table-or-string (results)
|
|
"Convert RESULTS into an appropriate elisp value.
|
|
If the results look like a list or tuple, then convert them into an
|
|
Emacs-lisp table, otherwise return the results as a string."
|
|
((lambda (res)
|
|
(if (listp res)
|
|
(mapcar (lambda (el) (if (equal el 'None) 'hline el)) res)
|
|
res))
|
|
(org-babel-read
|
|
(if (and (stringp results) (string-match "^[([].+[])]$" results))
|
|
(org-babel-read
|
|
(concat "'"
|
|
(replace-regexp-in-string
|
|
"\\[" "(" (replace-regexp-in-string
|
|
"\\]" ")" (replace-regexp-in-string
|
|
", " " " (replace-regexp-in-string
|
|
"'" "\"" results t))))))
|
|
results))))
|
|
|
|
(defvar org-babel-python-buffers '((:default . nil)))
|
|
|
|
(defun org-babel-python-session-buffer (session)
|
|
"Return the buffer associated with SESSION."
|
|
(cdr (assoc session org-babel-python-buffers)))
|
|
|
|
(defun org-babel-python-initiate-session-by-key (&optional session)
|
|
"Initiate a python session.
|
|
If there is not a current inferior-process-buffer in SESSION
|
|
then create. Return the initialized session."
|
|
(require org-babel-python-mode)
|
|
(save-window-excursion
|
|
(let* ((session (if session (intern session) :default))
|
|
(python-buffer (org-babel-python-session-buffer session)))
|
|
(cond
|
|
((and (equal 'python org-babel-python-mode)
|
|
(fboundp 'run-python)) ; python.el
|
|
(run-python))
|
|
((and (equal 'python-mode org-babel-python-mode)
|
|
(fboundp 'py-shell)) ; python-mode.el
|
|
;; `py-shell' creates a buffer whose name is the value of
|
|
;; `py-which-bufname' with '*'s at the beginning and end
|
|
(let* ((bufname (if python-buffer
|
|
(replace-regexp-in-string ;; zap surrounding *
|
|
"^\\*\\([^*]+\\)\\*$" "\\1" python-buffer)
|
|
(concat "Python-" (symbol-name session))))
|
|
(py-which-bufname bufname))
|
|
(py-shell)
|
|
(setq python-buffer (concat "*" bufname "*"))))
|
|
(t
|
|
(error "No function available for running an inferior python.")))
|
|
(setq org-babel-python-buffers
|
|
(cons (cons session python-buffer)
|
|
(assq-delete-all session org-babel-python-buffers)))
|
|
session)))
|
|
|
|
(defun org-babel-python-initiate-session (&optional session params)
|
|
"Create a session named SESSION according to PARAMS."
|
|
(unless (string= session "none")
|
|
(org-babel-python-session-buffer
|
|
(org-babel-python-initiate-session-by-key session))))
|
|
|
|
(defvar org-babel-python-eoe-indicator "'org_babel_python_eoe'"
|
|
"A string to indicate that evaluation has completed.")
|
|
(defvar org-babel-python-wrapper-method
|
|
"
|
|
def main():
|
|
%s
|
|
|
|
open('%s', 'w').write( str(main()) )")
|
|
(defvar org-babel-python-pp-wrapper-method
|
|
"
|
|
import pprint
|
|
def main():
|
|
%s
|
|
|
|
open('%s', 'w').write( pprint.pformat(main()) )")
|
|
|
|
(defun org-babel-python-evaluate
|
|
(buffer body &optional result-type result-params)
|
|
"Pass BODY to the Python process in BUFFER.
|
|
If RESULT-TYPE equals 'output then return a list of the outputs
|
|
of the statements in BODY, if RESULT-TYPE equals 'value then
|
|
return the value of the last statement in BODY, as elisp."
|
|
(if (not buffer)
|
|
;; external process evaluation
|
|
(case result-type
|
|
(output (org-babel-eval org-babel-python-command body))
|
|
(value (let ((tmp-file (make-temp-file "org-babel-python-results-")))
|
|
(org-babel-eval org-babel-python-command
|
|
(format
|
|
(if (member "pp" result-params)
|
|
org-babel-python-pp-wrapper-method
|
|
org-babel-python-wrapper-method)
|
|
(mapconcat
|
|
(lambda (line) (format "\t%s" line))
|
|
(split-string
|
|
(org-remove-indentation
|
|
(org-babel-trim body))
|
|
"[\r\n]") "\n")
|
|
tmp-file))
|
|
((lambda (raw)
|
|
(if (or (member "code" result-params)
|
|
(member "pp" result-params))
|
|
raw
|
|
(org-babel-python-table-or-string raw)))
|
|
(org-babel-eval-read-file tmp-file)))))
|
|
;; comint session evaluation
|
|
(flet ((dump-last-value (tmp-file pp)
|
|
(mapc
|
|
(lambda (statement) (insert statement) (comint-send-input))
|
|
(if pp
|
|
(list
|
|
"import pp"
|
|
(format "open('%s', 'w').write(pprint.pformat(_))" tmp-file))
|
|
(list (format "open('%s', 'w').write(str(_))" tmp-file)))))
|
|
(input-body (body)
|
|
(mapc (lambda (statement) (insert statement) (comint-send-input))
|
|
(split-string (org-babel-trim body) "[\r\n]+"))
|
|
(comint-send-input) (comint-send-input)))
|
|
(case result-type
|
|
(output
|
|
(mapconcat
|
|
#'org-babel-trim
|
|
(butlast
|
|
(org-babel-comint-with-output
|
|
(buffer org-babel-python-eoe-indicator t body)
|
|
(let ((comint-process-echoes nil))
|
|
(input-body body)
|
|
(insert org-babel-python-eoe-indicator)
|
|
(comint-send-input))) 2) "\n"))
|
|
(value
|
|
((lambda (results)
|
|
(if (or (member "code" result-params) (member "pp" result-params))
|
|
results
|
|
(org-babel-python-table-or-string results)))
|
|
(let ((tmp-file (make-temp-file "org-babel-python-results-")))
|
|
(org-babel-comint-with-output
|
|
(buffer org-babel-python-eoe-indicator t body)
|
|
(let ((comint-process-echoes nil))
|
|
(input-body body)
|
|
(dump-last-value tmp-file (member "pp" result-params))
|
|
(comint-send-input) (comint-send-input)
|
|
(insert org-babel-python-eoe-indicator)
|
|
(comint-send-input)))
|
|
(org-babel-eval-read-file tmp-file))))))))
|
|
|
|
(defun org-babel-python-read-string (string)
|
|
"Strip 's from around python string"
|
|
(if (string-match "^'\\([^\000]+\\)'$" string)
|
|
(match-string 1 string)
|
|
string))
|
|
|
|
(provide 'ob-python)
|
|
|
|
;; arch-tag: f19b6c3d-dfcb-4a1a-9ce0-45ade1ebc212
|
|
|
|
;;; ob-python.el ends here
|