CODEWITHSUNDEEP
pythonpython-2.7keyany
Joppe De Cuyper
Joppe De Cuyper

Reputation: 414

Python, Press Any Key To Exit

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 an error. I want a code that closes your script without using an error.

Does anyone have an idea? Google gives me the input option, but I don't want that It closes using this error:

Traceback (most recent call last):
  File "C:/Python27/test", line 1, in <module>
    input('Press Any Key To Exit')
  File "<string>", line 0
    
   ^
SyntaxError: unexpected EOF while parsing

Upvotes: 19

Views: 107434

Answers (11)

DGxInfinitY
DGxInfinitY

Reputation: 1

The following works on version 2.7.6. If you add raw_input('Press any key to exit') it will not display any error codes but it will tell you that the program exited with code 0. For example this is my first program. MyFirstProgram.

Upvotes: 0

Mazen
Mazen

Reputation: 1

You can use:

import sys
print("Press any key to continue")
input()
sys.exit()

Upvotes: 0

LISTERINE
LISTERINE

Reputation: 1029

msvrct - built-in Python module solution (windows)

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
>>> 
>>> 
... print("Press any key to continue...")
... _ = getch()
... exit()

Upvotes: 5

Ishan Kumar
Ishan Kumar

Reputation: 1

You can use this code:

from os import system as console

console("@echo off&cls")

#Your main code code

print("Press Any Key To Exit")
console("pause>NUL&exit")

Upvotes: 0

BARIS KURT
BARIS KURT

Reputation: 537

In python 3:

  while True: 
        #runtime..
        answer = input("ENTER something to quit: ") 
        if answer: 
            break

Upvotes: 0

wim
wim

Reputation: 363486

This syntax error is caused by using input on Python 2, which will try to eval whatever is typed in at the terminal prompt. If you've pressed enter then Python will essentially try to eval an empty string, eval(""), which causes a SyntaxError instead of the usual NameError.

If you're happy for "any" key to be the enter key, then you can simply swap it out for raw_input instead:

raw_input("Press Enter to continue")

Note that on Python 3 raw_input was renamed to input.

For users finding this question in search, who really want to be able to press any key to exit a prompt and not be restricted to using enter, you may consider to use a 3rd-party library for a cross-platform solution. I recommend the helper library readchar which can be installed with pip install readchar. It works on Linux, macOS, and Windows and on either Python 2 or Python 3.

import readchar
print("Press Any Key To Exit")
k = readchar.readchar()

Upvotes: 16

nitwit
nitwit

Reputation: 586

a = input('Press a key to exit')
if a:
    exit(0)

Upvotes: 1

Joe
Joe

Reputation: 16851

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.

Upvotes: 3

Thomas Lee
Thomas Lee

Reputation: 1

in Windows:

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

Upvotes: 0

Matthew Adams
Matthew Adams

Reputation: 10176

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!'

Upvotes: 1

vikki
vikki

Reputation: 2814

If you are on windows then the cmd pause command should work, although it reads 'press any key to continue'

import os
os.system('pause')

The linux alternative is read, a good description can be found here

Upvotes: 19

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