kbhit/getch python equivalent

alb

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Apr 22, 2013, 9:34:02 AM4/22/13

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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

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Peter Otten

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Apr 22, 2013, 10:00:47 AM4/22/13

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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

Grant Edwards

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Apr 22, 2013, 10:10:02 AM4/22/13

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On 2013-04-22, alb <alessand...@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.

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Chris Angelico

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Apr 22, 2013, 11:08:21 AM4/22/13

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On Mon, Apr 22, 2013 at 11:34 PM, alb <alessand...@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

woo...@gmail.com

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Apr 22, 2013, 4:30:50 PM4/22/13

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> 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()

xDog Walker

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Apr 30, 2013, 10:06:34 AM4/30/13

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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

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