my Dungeon Game

import random
import getch
import os

X_Y = []
x = list(range(10))
y = list(range(10))
for i in x:
    for j in y:
        X_Y.append((i, j))

def clear():
    if os.name == 'nt':
        os.system('cls')
    else:
        os.system('clear')
    return


def locations(rooms=()):
    if len(rooms) == 3:
        return rooms
    if len(rooms) > 3:
        return locations()
    new_room = random.choice(X_Y)
    if new_room not in rooms:
        rooms = (new_room,) + rooms[:]
    return locations(rooms)


def build_grid():
    grid = {}
    for room in X_Y:
        grid[room] = 'empty'

    monster, door, player_location = locations(X_Y)
    grid[monster] = 'monster'
    grid[door] = 'door'
    grid[player_location] = 'player'
    return grid

def print_grid(grid):
    clear()
    print("\tWelcome to the Dungeon. \nFind the door while avoiding the monster. \n\tUse: \n\t\t 'i' to move up\n\n'j' to move left,\t\t'l' to move right \n\n\t\t 'k' to move down\n  \nYour character is shown by the '~'. \nEmpty spaces show where you have been. \nEnter 'q' at any time to quit.\n")
    # player_trail = []
    for i in range(0, len(X_Y), 10):
        temp = '|'
        for j in range(10):
            room = grid[ X_Y[i + j] ]
            if room == 'player':
                temp = temp + ' ~ '
            elif room == 'done':
                temp = temp + '   '
            else:
                temp = temp + ' # '
        temp = temp + '|'
        print(temp)
    print('')
    return


def read_key():
    arrowKeys = {
        'i' : 'up',
        'j' : 'left',
        'k' : 'down',
        'l' : 'right',
        '8' : 'up',
        '5' : 'down',
        '4' : 'left',
        '6' : 'right',
        'q' : 'quit'
        }
    key_press = getch.getch().lower()
    if key_press not in arrowKeys:
        print("I'm sorry Dave. I can't do that. \nTry using 'i, j, k, l or 8, 4, 5, 6'.")
        return read_key()
    return arrowKeys[key_press]


def move(direction, grid):
    player_location = ''
    rooms = grid.keys()
    for room in rooms:
        if grid[room] == 'player':
            player_location = room
            break

    if player_location:
        if direction == 'up':
            new_player_location = (player_location[0] - 1, player_location[1])
        elif direction == 'down':
            new_player_location = (player_location[0] + 1, player_location[1])
        elif direction == 'left':
            new_player_location = (player_location[0], player_location[1] - 1)
        elif direction == 'right':
            new_player_location = (player_location[0], player_location[1] + 1)

        if 0 <= new_player_location[0] < 10 and 0 <= new_player_location[1] < 10:
            if grid[new_player_location] == 'monster':
                return 'monster'
            if grid[new_player_location] == 'door':
                return 'door'
            else:
                grid[player_location] = 'done'
                grid[new_player_location] = 'player'

    return grid



def main():
    grid = build_grid()
    print_grid(grid)

    while True:
        direction = read_key()
        if direction == 'quit':
            return

        grid = move(direction, grid)
        if grid == 'monster':
            print('Eeek! The monster ate you.')
            break
        elif grid == 'door':
            print('Sucess! You found the door.')
            break
        else:
            print_grid(grid)

    print('Would you like to play again? Y/n')
    again = getch.getch().lower()
    if again == 'y':
        return main()

    return


if __name__ == '__main__':
    main()