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my-python.el
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;; Requirements:
;; Pymacs from http://pymacs.progiciels-bpi.ca/archives/Pymacs.tar.gz
;;
;; For flymake, pylint must be installed and the epylint wrapper must be
;; somewhere in PATH. On Arch Linux, epylint is included in the pylint
;; package. pylint can be installed with easy_install.
;;
;; Also, ropemacs:
;; http://www.enigmacurry.com/2009/01/21/autocompleteel-python-code-completion-in-emacs/
(setq interpreter-mode-alist (cons '("python" . python-mode)
interpreter-mode-alist)
comint-completion-autolist t ;list possibilities on partial
;completion
comint-completion-recexact nil ;use shortest compl. if
;characters cannot be added
;; how many history items are stored in comint-buffers (e.g. py- shell)
;; use the HISTSIZE environment variable that shells use (if avail.)
;; (default is 32)
comint-input-ring-size (string-to-number (or (getenv
"HISTSIZE") "100")))
;;py-python-command-args '("-pylab"))
(setq pymacs-load-path '("~/.emacs.d/vendor"))
(autoload 'pymacs-apply "pymacs")
(autoload 'pymacs-call "pymacs")
(autoload 'pymacs-eval "pymacs" nil t)
(autoload 'pymacs-exec "pymacs" nil t)
(autoload 'pymacs-load "pymacs" nil t)
(add-hook 'python-mode-hook
'(lambda ()
(coding-hook)
;(require 'ipython)
(require 'pycomplete+)
(eldoc-mode 1)
(highlight-80+-mode t)
;; Initialize Rope
;; (when (not (fboundp 'ropemacs-mode))
;; (pymacs-load "ropemacs" "rope-")
;; (setq ropemacs-enable-autoimport 1))
(c-subword-mode t)
;; (load-library "pylint")
;; (load "pylint-flymake.el")
(set (make-variable-buffer-local 'beginning-of-defun-function)
'py-beginning-of-def-or-class)
(set-pairs '("{" "[" "\"" "\'" "("))
(setq py-indent-offset 4
py-shell-switch-buffers-on-execute nil
outline-regexp "def\\|class ")
(local-set-key [return] 'py-newline-and-indent)
(local-set-key (kbd "C-c C-z") 'py-shell)
;;(local-set-key "\t" 'ryan-python-tab)
(local-set-key (kbd "C-h p") 'py-complete-help-thing-at-point)
(local-set-key (kbd "C-;") 'my-insert-self)
(when (and buffer-file-name
(file-writable-p
(file-name-directory buffer-file-name))
(file-writable-p buffer-file-name))
(local-set-key (kbd "C-c d")
'flymake-display-err-menu-for-current-line)
(flymake-mode t))))
(defun my-py-indent-def-or-class ()
"Docstring"
(interactive)
(py-mark-def-or-class)
(py-indent-region))
(defun my-insert-self ()
"Insert self. at the beginning of the current expression."
(interactive)
(save-excursion
(search-backward-regexp "[ \n\t,(-]\\|^")
(if (not (looking-at "^"))
(forward-char))
(insert "self.")))
(defun py-next-block ()
"go to the next block. Cf. `forward-sexp' for lisp-mode"
(interactive)
(py-mark-block nil 't)
(back-to-indentation))
;; NOTE Not sure if I really need this, py-complete works well enough I think.
;; Should be improved with completion etc
(defun my-python-documentation (w)
"Launch PyDOC on the Word at Point"
(interactive
(list (let* ((word (thing-at-point 'word))
(input (read-string
(format "pydoc entry%s: "
(if (not word) ""
(format " (default %s)" word))))))
(if (string= input "")
(if (not word) (error "No pydoc args given")
word) ;sinon word
input)))) ;sinon input
(shell-command (concat py-python-command " -c \"from pydoc import help;help(\'" w "\')\"") "*PYDOCS*")
(view-buffer-other-window "*PYDOCS*" t 'kill-buffer-and-window))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Auto-completion
;;; Integrates:
;;; 1) Rope
;;; 2) Yasnippet
;;; all with AutoComplete.el
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun prefix-list-elements (list prefix)
(let (value)
(nreverse
(dolist (element list value)
(setq value (cons (format "%s%s" prefix element) value))))))
(defvar ac-source-rope
'((candidates
. (lambda ()
(prefix-list-elements (rope-completions) ac-target))))
"Source for Rope")
(defun ac-python-find ()
"Python `ac-find-function'."
(require 'thingatpt)
(let ((symbol (car-safe (bounds-of-thing-at-point 'symbol))))
(if (null symbol)
(if (string= "." (buffer-substring (- (point) 1) (point)))
(point)
nil)
symbol)))
(defun ac-python-candidate ()
"Python `ac-candidates-function'"
(let (candidates)
(dolist (source ac-sources)
(if (symbolp source)
(setq source (symbol-value source)))
(let* ((ac-limit (or (cdr-safe (assq 'limit source)) ac-limit))
(requires (cdr-safe (assq 'requires source)))
cand)
(if (or (null requires)
(>= (length ac-target) requires))
(setq cand
(delq nil
(mapcar (lambda (candidate)
(propertize candidate 'source source))
(funcall (cdr (assq 'candidates source)))))))
(if (and (> ac-limit 1)
(> (length cand) ac-limit))
(setcdr (nthcdr (1- ac-limit) cand) nil))
(setq candidates (append candidates cand))))
(delete-dups candidates)))
(add-hook 'python-mode-hook
(lambda ()
(auto-complete-mode 1)
(define-key ac-complete-mode-map "\C-n" 'ac-next)
(define-key ac-complete-mode-map "\C-p" 'ac-previous)
(local-set-key "\M-\C-q" 'my-py-indent-def-or-class)
(local-set-key "\C-x s" 'my-insert-self)
(set (make-local-variable 'ac-sources)
(append ac-sources '(ac-source-rope) '(ac-source-yasnippet)))
(set (make-local-variable 'ac-find-function) 'ac-python-find)
(set (make-local-variable 'ac-candidate-function) 'ac-python-candidate)
(set (make-local-variable 'ac-auto-start) nil)))
;;Ryan's python specific tab completion
(defun ryan-python-tab ()
; Try the following:
; 1) Do a yasnippet expansion
; 2) Do a Rope code completion
; 3) Do an indent
(interactive)
(if (eql (ac-start) 0)
(if (and
(or (bobp) (= ?w (char-syntax (char-before))))
(or (eobp) (not (= ?w (char-syntax (char-after))))))
(dabbrev-expand arg) ;; havent confirmed that this works
(indent-for-tab-command))))
(defadvice ac-start (before advice-turn-on-auto-start activate)
(set (make-local-variable 'ac-auto-start) t))
(defadvice ac-cleanup (after advice-turn-off-auto-start activate)
(set (make-local-variable 'ac-auto-start) nil))
(provide 'my-python)