getch.py

def getch_unix( ):
    old_settings = termios.tcgetattr( sys.stdin )
    try:
        tty.setraw( sys.stdin )
        ch = sys.stdin.read( 1 )
    finally:
        termios.tcsetattr( sys.stdin, termios.TCSADRAIN, old_settings)
    return ch

try:
    import tty, sys, termios
    getch = getch_unix
except ImportError:
    import msvcrt
    getch = getch_windows

def getch_win32( ):
    return msvcrt.getch( )

Just a brutally simple way to capture a terminal keypress in Python. Derived from:

http://code.activestate.com/recipes/134892-getch-like-unbuffered-character-reading-from-stdin/