Get Key Press in Python

Getting single key press without having user pres ENTER.

Windows:

import msvcrt

def getkey():
    return msvcrt.getch()

Linux:

import termios, sys, os
TERMIOS = termios

def getkey():
    fd = sys.stdin.fileno()
    old = termios.tcgetattr(fd)
    new = termios.tcgetattr(fd)
    new[3] = new[3] & ~TERMIOS.ICANON & ~TERMIOS.ECHO
    new[6][TERMIOS.VMIN] = 1
    new[6][TERMIOS.VTIME] = 0
    termios.tcsetattr(fd, TERMIOS.TCSANOW, new)
    c = None
    try:
        c = os.read(fd, 1)
    finally:
        termios.tcsetattr(fd, TERMIOS.TCSAFLUSH, old)
    return c

Usefull links:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/197140