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kbhit/getch python equivalent

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  kbhit/getch python equivalent alb <alessandro.basili@cern.ch> - 2013-04-22 15:34 +0200
    Re: kbhit/getch python equivalent Peter Otten <__peter__@web.de> - 2013-04-22 16:00 +0200
    Re: kbhit/getch python equivalent Grant Edwards <invalid@invalid.invalid> - 2013-04-22 14:10 +0000
    Re: kbhit/getch python equivalent Chris Angelico <rosuav@gmail.com> - 2013-04-23 01:08 +1000
    Re: kbhit/getch python equivalent woooee@gmail.com - 2013-04-22 13:30 -0700
    Re: kbhit/getch python equivalent xDog Walker <thudfoo@gmail.com> - 2013-04-30 07:06 -0700

#44067 — kbhit/getch python equivalent

Hi everyone,

I'm looking for a kbhit/getch equivalent in python in order to be able
to stop my inner loop in a controlled way (communication with external
hardware is involved and breaking it abruptly may cause unwanted errors
on the protocol).

I'm programming on *nix systems, no need to be portable on Windows. I've
seen the msvcrt module, but it looks like is for Windows only.

Any ideas/suggestions?

Al

-- 
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?

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#44072

alb wrote:

> I'm looking for a kbhit/getch equivalent in python in order to be able
> to stop my inner loop in a controlled way (communication with external
> hardware is involved and breaking it abruptly may cause unwanted errors
> on the protocol).
> 
> I'm programming on *nix systems, no need to be portable on Windows. I've
> seen the msvcrt module, but it looks like is for Windows only.
> 
> Any ideas/suggestions?

Curses?

http://docs.python.org/dev/library/curses.html

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#44073

On 2013-04-22, alb <alessandro.basili@cern.ch> wrote:

> I'm looking for a kbhit/getch equivalent in python in order to be able
> to stop my inner loop in a controlled way (communication with external
> hardware is involved and breaking it abruptly may cause unwanted errors
> on the protocol).
>
> I'm programming on *nix systems, no need to be portable on Windows. I've
> seen the msvcrt module, but it looks like is for Windows only.
>
> Any ideas/suggestions?

Signals, ncurses, termios.

-- 
Grant Edwards               grant.b.edwards        Yow! ANN JILLIAN'S HAIR
                                  at               makes LONI ANDERSON'S
                              gmail.com            HAIR look like RICARDO
                                                   MONTALBAN'S HAIR!

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#44086

On Mon, Apr 22, 2013 at 11:34 PM, alb <alessandro.basili@cern.ch> wrote:
> I'm looking for a kbhit/getch equivalent in python in order to be able
> to stop my inner loop in a controlled way (communication with external
> hardware is involved and breaking it abruptly may cause unwanted errors
> on the protocol).

Catch KeyboardInterrupt and hit Ctrl-C.

ChrisA

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#44109

> I'm looking for a kbhit/getch equivalent in python in order to be able to stop my inner loop in a controlled way (communication with external hardware is involved and breaking it abruptly may cause unwanted errors

A curses example

import curses

stdscr = curses.initscr()
curses.cbreak()
stdscr.keypad(1)

stdscr.addstr(0,10,"Hit 'q' to quit ")
stdscr.refresh()

key = ''
while key != ord('q'):
    key = stdscr.getch()
    stdscr.addch(20,25,key)
    stdscr.refresh()

curses.endwin()

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#44542

On Monday 2013 April 22 06:34, alb wrote:
> Hi everyone,
>
> I'm looking for a kbhit/getch equivalent in python in order to be able
> to stop my inner loop in a controlled way (communication with external
> hardware is involved and breaking it abruptly may cause unwanted errors
> on the protocol).
>
> I'm programming on *nix systems, no need to be portable on Windows.

http://code.activestate.com/search/recipes/#q=getch

-- 
Yonder nor sorghum stenches shut ladle gulls stopper torque wet 
strainers.

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