keypress.py

# -*- coding: UTF-8 -*-

try:
    import termios
except ImportError:
    # Assume windows

    import msvcrt

    UP, UP1, DOWN, DOWN1, RIGHT, RIGHT1, LEFT, LEFT1 = 119, 72, 115, 80, 100, 77, 97,75

    # arrow keys: 72,80,77,75 

    def getKey():
        while True:
            if msvcrt.kbhit():
                a = ord(msvcrt.getch())
                if a == 224:
                    a = ord(msvcrt.getch())

                return a

else:
    pass
#     # refs:
#     # http://bytes.com/topic/python/answers/630206-check-keypress-linux-xterm
#     # http://stackoverflow.com/a/2521032/735926

#     import sys
#     import tty

#     __fd = sys.stdin.fileno()
#     __old = termios.tcgetattr(__fd)

#     # Arrow keys
#     # they are preceded by 27 and 91, hence the double 'if' in getKey.
#     UP, DOWN, RIGHT, LEFT = 65, 66, 67, 68

#     # Vim keys
#     K, J, L, H = 107, 106, 108, 104

#     __key_aliases = {
#         K: UP,
#         J: DOWN,
#         L: RIGHT,
#         H: LEFT,
#     }

#     def __getKey():
#         """Return a key pressed by the user"""
#         try:
#             tty.setcbreak(sys.stdin.fileno())
#             termios.tcflush(sys.stdin, termios.TCIOFLUSH)
#             ch = sys.stdin.read(1)
#             return ord(ch) if ch else None
#         finally:
#             termios.tcsetattr(__fd, termios.TCSADRAIN, __old)

#     def getKey():
#         """
#         same as __getKey, but handle arrow keys
#         """
#         k = __getKey()
#         if k == 27:
#             k = __getKey()
#             if k == 91:
#                 k = __getKey()

#         return __key_aliases.get(k, k)

# # legacy support
# getArrowKey = getKey



if __name__ == "__main__":
    while(True):
        print getKey()