'wasd' movement

import sys

class Utilities():
    def __init__(self):
        pass

    def get_arrow_win(self):
        import msvcrt
        buttonPress = ""
        while True:
            if msvcrt.kbhit():
                buttonPress = msvcrt.getch()
                if buttonPress in arrowDictWin:
                    print(arrowDictWin.get(buttonPress))

    def get_arrow_lin(self):
        import tty, termios
        buttonPress = 0
        orig_settings = termios.tcgetattr(sys.stdin)
        tty.setcbreak(sys.stdin)
        while buttonPress != chr(27):
            buttonPress = sys.stdin.read(1)[0]
            if buttonPress.lower() in arrowDictLin:
                print(arrowDictLin.get(buttonPress.lower()))
        termios.tcsetattr(sys.stdin, termios.TCSADRAIN, orig_settings)

    def clearTile(self):
        maze[playerPosRow][playerPosColumn] = " "

    def screen_clear(self):
        if name == 'nt':
            _ = system('cls')
        else:
            _ = system('clear')

arrowDictWin = {b'w': 'UP', b'a': 'LEFT', b's': 'DOWN', b'd': 'RIGHT'}
arrowDictLin = {'w': 'UP', 'a': 'LEFT', 's': 'DOWN', 'd': 'RIGHT'}

obj = Utilities()

if sys.platform == 'win32':
  obj.get_arrow_win()
else:
  obj.get_arrow_lin()