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

[Rohan Nicholls]

I am going to weigh in here.  Denis is absolutely correct.

It is an official binding and convention in emacs, and I believe
xemacs.

C-h is sacred. It has a bunch of functionality behind it tied in with
prefix keys.  This means that in creating a map, and binding it to a
prefix key, when you hit: <prefix-key>, C-h it will list all the
bindings for that key's map.

As a very practical example, I use F5 for various org-mode
functionality. This is accomplished by defining F5 as a prefix key,
and binding a keymap I populated with various bindings to that key.
Now whenever I forget (frequently) what I had bound to what I just hit
F5,C-h and all the bindings are displayed.

And this holds for C-c.  If I hit C-c,C-h it is because I want to see what
the bindings are for the current mode.  I and many other emacs
users would be seriously thrown, not to say upset, if this functionality
was changed.

The C-h binding is very important for discoverability, and I think it
is a very, very bad idea to bind it to anything.

Just my 2 cents worth.

Thanks,

Rohan

On Fri, Mar 19, 2010 at 7:27 AM, Andreas Roehler
<andreas.roehler at online.de> 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?
>
>
>
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