how to use fold(or hideshow) in emacs python-mode

[Sean Richards]

"Li Daobing" <lidaobing at gmail.com> writes:

> Hello,
> I want to use fold-mode or hideshow mode under emacs, but it doesn't
> work.
>   Cound you tell me how to do this?
>   Thank you.

You can try this. I use something similar and it works quite well.

--8<--------------------------------------------------------------------

(add-hook 'python-mode-hook 'my-python-hook)

(defun py-outline-level ()
  "This is so that `current-column` DTRT in otherwise-hidden text"
  ;; from ada-mode.el
  (let (buffer-invisibility-spec)
    (save-excursion
      (skip-chars-forward "\t ")
      (current-column))))

; this fragment originally came from the web somewhere, but the outline-regexp
; was horribly broken and is broken in all instances of this code floating
; around.  Finally fixed by Charl P. Botha <<a href="http://cpbotha.net/">http://cpbotha.net/</a>>
(defun my-python-hook ()
  (setq outline-regexp "[^ \t\n]\\|[ \t]*\\(def[ \t]+\\|class[ \t]+\\)")
  ; enable our level computation
  (setq outline-level 'py-outline-level)
  ; do not use their \C-c@ prefix, too hard to type. Note this overides 
  ;some python mode bindings
  (setq outline-minor-mode-prefix "\C-c")
  ; turn on outline mode
  (outline-minor-mode t)
  ; initially hide all but the headers
  (hide-body)
  (show-paren-mode 1)
)

--8<--------------------------------------------------------------------

This code was found here -> http://tinyurl.com/7yyqv

Cheers,  Sean

-- 
"Hver sin smak", sa vintapperen, han drakk mens de andre sloss.