[Python-mode] Don't bind C-c C-h

[Deniz Dogan]

2010/3/19 Reinout van Rees <reinout at vanrees.org>:
> On 03/19/2010 07:27 AM, Andreas Roehler wrote:
>>
>> Deniz Dogan wrote:
>>>
>>> 2010/3/18 Andreas Roehler<andreas.roehler at online.de>:
>>>>
>>>> Deniz Dogan wrote:
>>>>>
>>>>> Please, don't bind C-c C-h to anything. This prevents people from
>>>>> viewing all the bindings that start with C-c, which C-c C-h would
>>>>> normally display.
>>>>>
>>>> Hi Deniz,
>>>>
>>>> it may help, if you write your suggestion into the bug-tracker. So it
>>>> doesn't get lost.
>>>>
>>>> https://bugs.launchpad.net/python-mode
>>>>
>>>> When reporting, please explain a little bit more the reasons. What's
>>>> there as mentioned normally for you?
>>>> Exists some coding convention which contradicts?
>>>>
>>>> Thanks taking part
>>>>
>>>
>>> Would someone mind reporting the issue there for me? I don't plan on
>>> using Launchpad any time soon other than for this. If anyone gets
>>> around to doing that, you can use the following description of the
>>> problem:
>>>
>>> I'm not sure there is an actual convention that says one shouldn't use
>>> C-h in a key sequence. However, I often use C-h as a "suffix" key to
>>> find out more about key sequences that start out a certain way. You
>>> can try this by hitting e.g. "C-x n C-h", which should give you:
>>>
>>>  C-x n d         narrow-to-defun
>>> C-x n n         narrow-to-region
>>> C-x n p         narrow-to-page
>>> C-x n w         widen
>>>
>>> I use this feature quite often in Emacs and I'm sure some other people
>>> do it to. Of course, one can use "C-h m" to find out more about the
>>> mode-specific key bindings, but there is still use for C-h as a
>>> suffix, as it shows you _all_ of the bindings that start with a
>>> particular key sequence.
>>>
>>
>> You mentioned a binding starting with C-c, not with C-x as your example
>> shows now.
>> So the matter is done?
>
> Nope. What he actually meant was "don't use ctrl-h in a binding". Regardless
> of whether it is ctrl-c or ctrl-x or ctrl-ä.
>
> Ctrl-h is the standard emacs key you can press anywhere in a sequence of
> alt/ctrl commands to get a description of everything that's possible there.
>
> ctrl-c ctrl-h: show everything I can do after ctrl-c here.
>
> ctrl-x v ctrl-h: what where those version control commands again...
>
>
> (What I don't know is where in python mode he found a ctrl-h binding, btw).
>
> Reinout
>

In python-mode.el with py-version "5.1.0+" whatever that means:

Line 692:
  (define-key py-mode-map "\C-c\C-h"  'py-help-at-point)

-- 
Deniz Dogan