Python, Press Any Key To Exit

Question

So, as the title says, I want a proper code to close my python script. So far, I\'ve used input(\'Press Any Key To Exit\'), but what that does, is generate a er

Answer 1

Here's a way to end by pressing any key on *nix, without displaying the key and without pressing return. (Credit for the general method goes to Python read a single character from the user.) From poking around SO, it seems like you could use the msvcrt module to duplicate this functionality on Windows, but I don't have it installed anywhere to test. Over-commented to explain what's going on...

import sys, termios, tty

stdinFileDesc = sys.stdin.fileno() #store stdin's file descriptor
oldStdinTtyAttr = termios.tcgetattr(stdinFileDesc) #save stdin's tty attributes so I can reset it later

try:
    print 'Press any key to exit...'
    tty.setraw(stdinFileDesc) #set the input mode of stdin so that it gets added to char by char rather than line by line
    sys.stdin.read(1) #read 1 byte from stdin (indicating that a key has been pressed)
finally:
    termios.tcsetattr(stdinFileDesc, termios.TCSADRAIN, oldStdinTtyAttr) #reset stdin to its normal behavior
    print 'Goodbye!'

Answer 2

in Windows:

if msvcrt.kbhit():
    if msvcrt.getch() == b'q':
        exit()

Answer 3

I would discourage platform specific functions in python if you can avoid them, but you could use the built-in msvcrt module.

from msvcrt import getch

junk = getch() # Assign to a variable just to suppress output. Blocks until key press.

Answer 4

As far as I know there is no way to 'press any key'. The input and raw_input commands require you to press the ENTER key. (raw_input is not supported in Python 3.x)

Answer 5

Have you tried raw_input()? It could be that you are getting a syntax error by using input() on python 2.x, which will try to eval whatever it gets.

Answer 6

A little late to the game, but I wrote a library a couple years ago to do exactly this. It exposes both a pause() function with a customizable message and the more general, cross-platform getch() function inspired by this answer.

Install with pip install py-getch, and use it like this:

from getch import pause
pause()

This prints 'Press any key to continue . . .' by default. Provide a custom message with:

pause('Press Any Key To Exit.')

For convenience, it also comes with a variant that calls sys.exit(status) in a single step:

pause_exit(0, 'Press Any Key To Exit.')

Check it out.