can python do some kernel stuff?

[Jimmy]

On May 23, 11:14 pm, Jimmy <mcknight0... at gmail.com> wrote:
> On May 23, 5:53 pm, "Diez B. Roggisch" <de... at nospam.web.de> wrote:
>
>
>
> > Jimmy schrieb:
>
> > > On May 23, 3:05 pm, Andrew Lee <fiacre.patr... at gmail.com> wrote:
> > >> Jimmy wrote:
> > >>> Hi to all
> > >>> python now has grown to a versatile language that can
> > >>> accomplish tasks for many different purposes. However,
> > >>> AFAIK, little is known about its ability of kernel coding.
> > >>> So I am wondering if python can do some kernel coding that
> > >>> used to be the private garden of C/C++. For example, can python
> > >>> intercept the input of keyboard on a system level? someone told me
> > >>> it's a kernel thing, isn't it?
> > >>http://wiki.python.org/moin/elmer
>
> > > well, straightly speaking, how can I know a key is pressed on a system-
> > > level if
> > > using python?
>
> > What has that todo with kernel programming? You can use e.g. pygame to
> > get keystrokes. Or under linux, read (if you are root) the keyboard
> > input file - I've done that to support several keyboards attached to a
> > machine.
>
> > And the original question: no, python can't be used as kernel
> > programming language. Amongst other reasons, performance & the GIL
> > prevent that.
>
> > Diez
>
> sorry, my aim is not limited to one particular program. Yes, many
> library can
> permit you to respond to keyboard event, however, what I want is a
> universal
> function. as long as a key is pressed, no matter where, my program can
> repond.
>
> I am quite strange with this topic. But according to my understanding,
> any event, keyboard event
> for example, once triggered, will be dilivered by keyboard driver to X
> system, and then
> any running program can either choose to respond or ignore. So my
> question can be translated to:
> how to make my program respond ?

maybe I'd better elaborate on my question. Back to my original
question:
intercept keyboard event on a system level. If you are writing program
in
 emacs, of course, the keyboard inputs are meant for emacs only. What
I
want is no matter what program you're running, keyboard events can be
anyway caught by my program.

Am I clear with myself? :)